Bay Materials

What’s that in my plastic?

cvogdes — Wed, 27 Jan 2010 22:08:12 +0000

Recently we had an inquiry by someone who believed they were having an allergic reaction to a specific plasticizer found in some soft plastic products. We replied that it was indeed possible, but this also got us thinking: the additives used in plastics processing and manufacturing are common knowledge to those in the industry, but probably very foreign to the general public. Thus, we have compiled this round-up of common plastics additives, the reason for their addition, and some considerations about them.

Read all about it after the jump.

Pigments and Colorants

Many plastics are a translucent or clear in their native state. As can be seen by the universe of colored plastic goods you see around you, most are pigmented during the manufacturing process. A huge selection of different pigments and pigment chemistries are used, sometimes in subtle and interesting ways. For example, if a plastic is yellowed from moisture during processing, adding some blue pigment will make it appear more clear. Some strong pigments are used to help protect a plastic from UV degradation, as discussed below in the stabilizers section.

Stabilizers

Some plastics break down via oxidization reactions when heated, or in reactions catalyzed by some metals. Stabilizers are materials added to polymers to prevent its degradation from sources such as heat, UV radiation or metal. Ever wonder why plastics often fade or get brittle when left in the sun? That is them being broken down by UV radiation and/or heat.

Heat Stabilizers Are usually radical scavengers or peroxide decomposers. These shut down chain reactions that could otherwise work to “unzip” the long molecules that make up polymers. These additives are often hindered phenols, aeromatic amines, phosphites, and thioesters.

UV Stabilizers Aim to protect the plastic from damaging UV rays, like sun-block for your skin. Some simply absorb the rays using strong pigments like titanium oxide or carbon black. However, if you want colors other than black or white, a hindered amine or benzophenone UV stabilizer may be added.

Fillers & Impact Modifiers

Just as rebar is used to reinforce concrete, many fillers or additives are used to toughen (or soften) plastics. Glass fibers, silica, and some special clays can greatly improve the impact toughness and shear strength of a plastic. A category of materials called “plasticizers”, including citrates, phosphate esters, phthalates, epoxidized oils, and trimellitates can be used to make a plastic more flexible and/or softer.

Some fillers such as carbon black, carbon nanotubes, or metalized glass spheres will affect a plastic’s electrical properties in addition to its physical properties.

Flame Retardants

Although some plastics such as Polyvinyl Chloride and Polytetrafluoroethylene (aka PTFE, aka Teflon) are naturally flame retardant, many others burn fairly readily.

Since most people don’t like the idea of their belongings bursting into flame (and because of various federal regulations), many consumer plastic products include flame retardants. A wide variety of flame retardants exist, and are selected based on the chemistry of the plastic, its processing, compatibility with other additives, regulatory requirements, and intended uses. Like all things, current knowledge evolves and methods change. For example, brominated flame retardants, while historically popular, are being phased out of use in many industries due to health concerns, and are banned in some EU countries.

Nucleating & Clarifying Agents

Nucleating agents add well-dispersed “imperfections” to a polymer blend. This is often desirable, as it tends to increase the temperature of crystallization; I.E. the polymer doesn’t have to be cooled as much before becoming a rigid part from its molten state, and makes the crystal formation more uniform and subtle; I.E. the part looks clear and consistent instead of like a hazy mash of snowflakes. Sodium Benzoate is often added for this purpose, but many minerals like talc will work. Clarifiers can be thought of as a special case of a nucleating agent that also increases the clarity of the resulting blend. Dibenzylidene Sorbitol is a common chemical base for clarifiers, especially often used for processing Polypropylene. Like many other additives discussed here, the additive must have a processing temperature close to that of the plastic it will be blended with, otherwise it might break down, or mix poorly.
Process Aids

When transforming a plastic into a useful shape or product, many processing steps are often required. Drying, shredding, blending, melting, extruding/molding can be expected at least, often with many more steps for more complicated processes. Some additives are useful simply to ensure the processing goes smoothly. Waxes, Silicones, Fluorinated resins and Stearates serve as lubricants or release agents, depending on the pressures and temperatures involved in the process. Ethylene bis-stearamide and other gents are used as “slip” or “anti-blocking” additives – these prevent the surfaces of a polymer from sticking to itself, particularly when being wound onto a spool or stacked in sheets.

Antimicrobials

Antimicrobials are used to produce things ranging from medical surfaces that are more sterile to synthetic shirts that don’t stink after you sweat in them for 3 days. Zeolite Silver has inherent antimicrobial properties, and can be added in several forms. Some additives have structural antimicrobial properties such as BIOSAFE® materials which are actually “pointy” on the nano-scale in a way that ruptures bacterial cell walls. For some applications a temporary antimicrobial property may be sufficient, and the plastic may be treated post-production with a biocide like Triclosan.

Foam Blowing Agents

Foamed plastics are used for insulation, flotation, and space-filling properties (among others). Car seat padding, some mattresses, shoe soles and pipe insulation are just a few examples of foamed plastic products. Although many different processes exist to produce stable foams, many involve the addition of a Foam Blowing Agent which will vaporize or expand to form the nacelles desired; some even have additional inherent insulative properties that support the final function of the product. Many blowing agents were originally fluorocarbon based, but again as techniques and laws advanced many substitute foam blowing agents that are non-ozone-depleting now exist and are used depending on the foam properties and materials in question.

Problems with Additives

Clearly, with the many possible additives for plastics, processing can get a little complicated. Additives must be compatible with the base plastic, play nicely with each other, and be appropriate for the temperatures and conditions used in processing. In addition, most additives require careful dispersion for good results, which may even call for dispersive aids – additives for your additives!

Unfortunately, some additive problems aren’t immediately obvious, and show up later via mechanisms like blooming (additives migrating to the polymer’s surface), fading, mechanical weakness or process variability.

Like most complicated problems, unfortunately, there is no one-size-fits-all answer, and the best plan is to seek expert help, or trek down the road to becoming an expert yourself.

If you’re producing a few tons a day of some compounds, chances are you already have Dow® on speed dial – for everyone else: Bay Materials is happy to help.

Hermetic Sealing Foil for COC

cvogdes — Tue, 20 Oct 2009 21:33:08 +0000

Cyclic Olefin Co-polymers (COC) are a relatively new class of polymers that have seen significant growth and penetration into the medical device and diagnostics markets. Chemically COC are generally comprised of a rigid ring structure and optionally varying amounts of ethylene and are polymerized using a metallocene catalyst. The most common ring structures are based on norbornene with various substituent groups to tailor properties. There are also commercial resins based on more complex ring structures that lead to higher Tg values.

Figure 1. Representative Structure of COC

Ticona was the highest volume COC producer but sold the business to Daicel Chemical Industries and Polyplastics Co., Ltd who markets under the original trade name TOPAS™. Injection molding and extrusion grade are also marketed as Zeonor™ by Zeon Chemicals, and Apel™ by Mitsui Chemical.

Distinguishing characteristics of COC resins are based on their amorphous character, moderate to high Tg, very high optical clarity, low birefringence and excellent moisture barrier properties. The barrier properties of COC are quite remarkable as shown in the figure below:

Figure 2. Oxygen and Moisture Barrier Properties of Selected Polymers.

The combination of high optical clarity and high moisture resistance has let to these materials being used extensively in the development of barrier packaging products (primarily film based), medical devices and a wide array of microfluidic and diagnostic products.

Injection molding and extrusion of COC can be carried out on standard equipment, however it should be recognized that those grades of materials which do not have antioxidant or stabilizer packages can be prone to discoloration or gel formation and may require an inert gas (usually nitrogen) blanked or purge.

Because the COC is a completely saturated hydrocarbon structure they have very low surface energy and can present specific challenges if one wants to bond to them. For example, most acrylic or EVA type adhesives will form little or no bond to COC. COC are also incompatible with most all polymer, however there are know examples of limited compatability with certain grades of polyethylene or polypropylene.

In a number of applications using COC, it is necessary to not only bond to it but to produce a hermetic seal, for example; sealing a COC based 96-well-plate. In several applications is even desirable to produce such a seal in the presence of liquid water.

A number of commercial heat seal films have been evaluated for use with COC and found to either bond poorly or to not be hermetic. Also, if based on polypropylene their activation temperature may be so high as to damage either the COC substrate on some component of the device.

Bay Materials has developed a four layer hermetic heat seal film for use with cyclic olefin copolymers, designated SF 47. This film utilizes a pierceable aluminum backing to provide a fully hermetic seal and a proprietary heat seal layer that readily bonds to COC. A diagram of the film is shown in Figure 3.

Figure 3. Construction of SF 47 Hermetic Seal Film for COC.

Thermal analysis was conducted on the heat seal layer to facilitate selection of bonding conditions. The TMA softening curve (Figure 4) shows a softening onset of 65 C and a maximum at about 80 C. Accordingly, this film can be sealed at temperature that will not damage devices which may contain water or biological samples.

This particular film was developed for use with Topas 8007, the most common COC for injection molding and extrusion. However, it works equally well on other COC resins with Tg values similar to 8007. Bay can readily provide modified films with different properties to meet your specific needs.

For additional information on heat seal films for cyclic olefin copolymers contact Ray Stewart at Bay Materials, LLC.

The Urethane and the Elephant

cvogdes — Wed, 01 Jul 2009 23:18:22 +0000

Medical product designers know that urethanes can be used where biocompatibility and flexibility are the key features. Electronics and packaging engineers are familiar with urethanes as conformal coatings or potting compounds where water blocking properties are important. Mechanical engineers may select the urethanes as tough, abrasion-resistant materials used for skateboard wheels, processing rollers, and adhesives.

Like the fable of the blind men and the elephant, it is common for specialists in one industry to only see the properties of Urethanes that they are familiar with and overlook others. At Bay Materials we work with clients in a broad range of industries and have specified urethanes for a wide variety of applications. This has given us many opportunities to think about the “whole elephant” with materials we are evaluating or recommending.

While many engineers are aware of low durometer urethanes used for products like catheter tips, many do not realize that transparent urethanes are commercially available with tensile modulus up to about 300,000 psi and even over 2 million with reinforcement and fillers. Bay Materials selected one of these clear, tough materials and modified it further to produce the Zendura line of orthodontic appliance materials used in dental aligners today. This took advantage of the desirable properties of biocompatibility, toughness and clarity of urethane. We have also specified urethane adhesives and coatings for use in the protection of sensing devices, taking advantage of their good adhesive and conformal properties and its strength as a water barrier.

When considering materials applications, it is important to consider all the properties of the material, or consult with someone more familiar with the subject. Don’t cross urethanes off of your list of candidates too quickly. Urethanes exist with an amazing range of properties, which can act as everything from a high-durability top-coat to a soft gasket.

Water, Water Everywhere

cvogdes — Wed, 17 Jun 2009 18:19:48 +0000

A recurring theme at Bay Materials has been dealing with water. More precisely, not a problem with water itself, but keeping water out of things. Several recent projects have revolved around the difficulty of finding adhesives, encapsulants and sealants that can resist water at elevated temperatures.

Picking encapsulants and adhesives isn’t easy to start with; you need surface compatibility with the materials in question, acceptable cure and application/pot life/thixotropy properties, as well as appropriate CTE and rigidity to survive expected conditions for higher-performance needs. Things only get harder when you throw water into the mix.

Many encapsulants or adhesives (we won’t go pointing fingers just yet) that appear good based on manufacturer testing for water resistance or MVTR, fail under immersion conditions. Claims of water resistance made based on 85C / 85% relative humidity tests often do not apply full immersion conditions. Some adhesives are tested at high humidity and at high temperature, but not both at the same time, which is exactly when things tend to fall apart.

If the data isn’t available, the best way to find out if an adhesive will hold up under the conditions of your process and product use conditions is to test it. Depending on adhesive chemistry, some analytical methods can indicate cure completeness directly. Accelerated aging, water uptake studies, and immersion testing give real data on how well it will survive, projections on how long and what failures to eventually expect.

Humble immersion testing is a powerful and inclusive tool. The weight gain the adhesive undergoes while soaking indicates how much water it absorbs. This is an indicator of the stress it will be subjected to during wet/dry cycling, as well as a measure of how resistant it will be to immersion. If the adhesive lost weight when it is dried back out, the cure conditions may have been insufficient, or the stoichiometry of a two-part adhesive may have been incorrect.

Water uptake of several adhesives at 50C.

Some products that survive immersion conditions fail quickly under slightly elevated temperatures, such as 40-50C. Salt water has the additional problem of chloride ions rampaging around just looking for things to react with. For example, standard wire bonds protected with an industry-standard single-part epoxy encapsulent failed in about two days in salt water at 80C. The same wire bonds survived many weeks in solution with a tripolyphosphate counter ion. So, make sure to take testing far enough and specific enough; if you expect NaCl conditions, test under NaCl conditions.

Here are some rules of thumb we’ve developed for screening adhesives that will be immersed:

Test at the top of your thermal envelope early. Things can fail here surprisingly, and ruling candidate materials out early on can save you lots of study time. If your planned adhesive has a thermal transition temperature lower than expected conditions, make sure you test on both sides.
Don’t ignore the urethanes. Nearly everyone thinks “ewww Urethanes are wimpy” but increasingly modern “high-performance” urethanes offer surprisingly good adhesive and water resistance properties.
Cure conservatively. Assuming it is feasible for your anticipated manufacturing process, test using the most conservative cure. If the bottle says 1 hour at 95C, try overnight at 95C.
Be sure to check final dry weight against the initial weight when doing a water-uptake study. Adhesive loss during the immersion can mask undesirably high water uptake, and sufficient water uptake can mask adhesive loss that is indicating an improper cure, or unstable adhesive.
Consider multi-coat approaches. Particularly with delicate parts like wire bonds you often have a dilemma: strong solvent-borne barrier systems will shrink and damage the delicate parts during cure, and often have very low viscosity, making them hard to apply. No-solvent systems (often epoxy) may have great CTE and application properties, but just not be a good enough barrier. Filling the area with the epoxy, and then coating the epoxy with a high barrier nylon or other resin can provide the best of both worlds.

If anyone else has brilliant solutions or interesting problems dealing with water resistant encapsulents or adhesives, drop us a line in the comments.

Bay Materials’ Chemical Inventory

cvogdes — Mon, 06 Apr 2009 19:01:40 +0000

NOTE: Bay Materials typically maintains research quantities of the below materials. If you seek commercial quantities you should check with the manufacturer or a stocking distributor.

Here is the current chemical inventory of Bay Materials! If you were curious what we have in stock, right this very minute, now you know! As always, if your project demands materials we don’t have, we will work with a network of suppliers to get the desired materials. However, having an extensive library of common materials allows us to achieve quick response time on many projects and enables testing of families of materials before more specialized materials arrive. In addition to the additives and resins listed below, Bay Materials stocks regular process and laboratory chemicals.

Use your browser’s search to look for specific materials easily! (Ctrl + F on most computers)

13-7031 PV Fast Red E3B 600537
15-1048 PV Fast Blue BG 602403
15-1101 PV Fast Blue A4R 601740
AC Wax 5120
AC Wax 573A
AC Wax 575A
Acetylene Black AB 50%
Acritamer 934
Acritamer 940
Additol BP
Adhesive, 7355
Adhesive, B-401
Adhesive-2013
Aerosil A300
Aerosil A380
Afflair 111 Rutile Fine Silver Pigment
Afflair 7215 Ultra Rutile
Alsibronz 06
Alsibronz- 39 Mica
Aquabead 270E
Aquabead 325E
Aquabead 525E
Aquatac 6025
Aquatac 6085
Aquazol 500
Araldite PZ 323 CH
Arctic Silver 5
Aridall 1460
Armowax W-440
Arosperse 60 (µ)
Ashbury Carbon- 4827
Ashbury Carbon-5303
Astorstat 6920
Astorstat 75
Astorstat 80
AT 325
Barex 210
Barex 1000S
Barex 2090MS
Barium Sulfate
Blue- 385
Blue- 46013-CD1
Blue- 46042-CD1
Blue- 620 C
BM26-38A
BM26-38B
BP Acclear 8249
Butvar B-72
BYK 420
BYK-024
BYK-028
BYK-065
BYK-066 N
BYK-306
BYK-333
BYK-345
BYK-347
BYK-348
BYK-354
BYK-405
BYK-410
BYK-411
BYK-425
BYK-9076
BYK-A 500
BYK-A 501
BYK-ES 80
Bynel CXA21E533
Bynel CXA21E533
Bynel CXA3126
Bynel CXA3859
Bynel CXA41E558
Bynel CXA41E558
Cab-o-sil TS-530
Calcium Carbonate
Calwax 170
Calwax 185
CAPA 6400
CAPA 6800
Capro NC73ZP
Capron Aegis HFX
Capron Aegis HFX
Capron NC73ZP
Capron NC73ZP
Capron XA 2908
Capron XA2908
Carbon Fiber AGM94MF0150
Carbon Fiber AGM95MF0400
Carbon Fiber AGM99MF0150
Carbopol*907 Polymer
Carbopol*980 Polumer
Carnauba Wax, SP-63
Castor Oil, ethoxylated: PEG-40
Cellulose Gum, Carboxymethylcellulose
Celvol® Polyvinyl alcohol homopolymer
Cinquasia Violet- RT-891-D
Conductive Nickel pigment 525-250
Conduct-O-Fil AG-SF20
Conduct-O-Fil- AG-SF20
Conduct-O-Fil S3000 53M silvered sphere
Conduct-O-Fil- S3000-S3M
Conduct-O-Fil SH400 520 silvered hollow
Conduct-O-Fil- SH400S20
Cristamid MS1700
Cristamid MS1700
Cromophtal Blue A3R
Cycat 296-9 resin
Cycoloy- EXL 1330
Cymel® U-60 Resin
Cymel (U-65 Resin)
Cymel 327 resin
Cymel 327 resin
Cymel® 380 Resin
Cymel- 385
Cymel 385 Resin
Denka ABS TW-28 Clear/Natural
Denka ABS TW-28 Clear/Natural
Disperbyk
Disperbyk-167
Disperbyk-170
Distearyl Thiodipropionate
Distearyl thiodipropionate (DSTDP), recrystallized
Doverphos S 9228
Dowicil- 75 Preservative
Durastar- 1010
Durethane T40
Eastar 6763 Natural
Eastobond- 19411
Ebecryl 12
Ebecryl 230
Ebecryl 53
Ebecryl 7100
Ebecryl P104
Ebecryl P115
Ebecryl P36
Eccobond UV-900
Economer 200F
Economer 4827
E-Fill 2726 95% Ni/graphite 5% composite powder
E-Fill 2757 Au-Ni-C
E-Fill 2805 75% Ni/graphite 25% composite powder
Elastollan 1174 D-50
Elvacite 2009
Elvacite 2014
Elvacite 2016
Elvacite 2044
Elvacite 2046
Elvanol- 70-06
Elvanol- 90-50
Elvax 360
Elvax 450
Elvax 760
Embrace
EPI-REZ 3546WH53
EPI-REZ 3522W60
EPI-REZ 3510W60
EPI-REZ 5003W55
EPI-REZ 5520W60
Epolight- 1090 (V-90)
Epolight- 1125 (III-125)
Epoxy 907 Adhesive System
Epsom Salt, USP
Escorez 1301C
Escorez 1304
Escorez- 1315
Escorez- 2203
Escorez- 5340
Escorez- 5380
Estane- 5703P
Estane- 5778P
Estane- 58245 NAT 0311
Estane- X-1109 Nat 030P
EVAL- E105B
EVAL F101B
EVAL F104B
EVAL- F104B
EVAL L171A
EVALCA L 171A
Exxelor
Exxelor P0101
Exxelor P0101/PPMA
Fibers, Acrylic 1/8” 1.5 Denier
Fibers, Acrylic 1/8” 3.0 Denier
Fibers, Nylon 6,6 1/8” 1.0 Denier
Fibers, Nylon 6,6 1/8” 3.0 Denier
Fibers, Polyester 1/8” 0.5 Denier
Fibers, Polyester 1/8” 3.0 Denier
Fibre Glast 29- Milled Fibers
Fibre Glast 38- 1/32” Milled Fibers
Fibre Glast 544- Kevlar Pulp
Fusabond- E MB-100D
Fusabond E MB-265D
Fusabond E MB-585D
Fusabond E MB-586D
Fusabond EMB-100D
Gantrez AN-119
Gantrez AN-139
Gantrez AN-149
Gantrez S-97 BF
Garamite 1958
Garamite LS
Geniomer 200
Geniomer 60
Geniomer 80
Genioperl P52
Genox EP
Glass Bubbles
Glass Fibers, 1/32”
Graphene
Graphite 3243
Graphite 4012
Graphite- Microfyne
Grilamid- TR 90 Natur
Grilamid- TR55 Natur 6504
Grilamid- TR55LX Natur
Grilamid- TR55LZ Natur
Grilamid- TR90 Natur
Grilon CF6S
Grilon- CF6S Natur
Grivory- G21
Grivory G21 Nat
Grivory GTR 45
Ground Mica, CD-800
GRSJ 0600
GRSJ 0600
HDPE
HDPE, mi=0.8
HDPE, mi=17
HELOXY MODIFIER 68
HELOXY MODIFIER 71
HS-310 Sandoplast Red G- 60628
HS-510- Sandoplast Blue 2B
Huberbrite 1
Huberbrite Interlok
Hubercarb- Q3
Hubercarb- Q3
Hubercarb- Q325
Hubercarb- Q3T
Hubercarb- S-4
Hubercarb w/optifil
Hubercarb w/optifil
Hubercarb- W3
Hubercarb- W3
Hydrobrite 1000 PO(white mineral oil)
Hydrothane- AR 15-83A
Hydrothane- AR 25-83A
Hylar 461
Inco Nickel Powder 287 screened 325 mesh
Inco Nickel Powder Type HDNP
IRGACURE- 2959
IRGACURE- 819
Irgafos- 126
Irgafos- 168
Irgafos- XP 60
IRGANOX- 1010
IRGANOX- HP 2215FF
IRGANOX- HP 2225FF
IRGANOX- MD 1024
Irogran CA 116-201
Irogran CA-100-200
Irogran PS 455-203
Isoplast 2530
Isoplast 301
Isoplast 302EZ
Jartherm 20
Jartherm 30
Jartherm 40
Ken-React CAPS L12/L
Ken-React LICA 01
Ken-React LICA 12
Ken-React LICA 44
Kester Wax- K-72
Ket Jenblack EC-300J
Ket Jenblack EC-600JD
Keyfluor White OB- 915-426-51
Keyfluor White Optical Brightener- 915-184-52
Keyplast Violet 3B- 706-038-50
Keyplast Violet IRS- 706-013-50
K-Kat- 348
Klucel Hydroxypropylcellulose
K-Resin- BK10
K-Resin- BK15
K-Resin- DK11
K-Resin- KR01
K-Resin- KR03
Krystalgran PE 499-100
Kuraray Poval R-1130, R-3109
Kuraray Poval KL-318
Kuraray Poval KL-118
Kynarflex- 2500-20
Kynarflex- 2800-20
Kynarflex 2821-00
Kynarflex- 2821-00
Lampblack 101 (L)
Lazer Flair LS800 Pigment
Lazer Flair LS805 Pigment
Lazer Flair LS810 Pigment
LDPE 9551 BG
Lexan- 104
Lexan 104-112
Lexan- 3421R
Lexan- HP1R-111
Lexan- HP2-111
Lexan- Xenoy
Lexan- Xenoy 1333-1001
Licocene PP- 1302 Gran (TP)
Licocene PP- 1502 Gran (TP)
Licocene PP- 1602 Gran (TP)
Licocene PPMA 1332 TP
Licocene PPMA 1452
Licolub FA-1 EBS
Licolub Micropowder FA-1
Licolub WE- 40 Powder
Liquilube- 409
Liquion Solution LQ-1115
Liquitron- 345
Loctite 3106 light cure adhesive
Loxiol G60
Loxiol G70S
Loxiol P861
Makroblend- UT408
Med-6640 Part A
Med-6640 Part B
Merge 4462
Mica
Mica 14 WA
Mica 31
Mica 39
Mica Powder, 1000 Mesh
Mica Powder, 1250 Mesh
Mica, H2S04- CETAC-30
Microglass Fibers
Microglass Fibers
Microsere 5788
Microsere 5818A
Microsere 5910A
Microsere 5999A
Microsere 8536A
Microspersion- 235
Microspersion- 411
Microspersion- 501
Microspersion- 6550
Microspersion- 930
Microthene FA 700-00
Microthene- FA700-00
Milled Glass Fibers
Mitsui Hiwax 400P
MOR-ESTER- 49006-P
Mowiol 20-98
Mowiol 26-88
Mowiol 4-88
Mowiol 56-98
Multiwax W-445
Muscovite Mica- CD-800
MXD6 Polyamide
NAS 21 Resin
NAS 30
Natrosol Hydroxyethylcellulose
Natrosol Pharm Hydroxyethylcellulose
Natrosol Pharm Hydroxyethylcellulose
Natural Mica Powder- SGNTMI1
Nubiflow
Nubix C-84 Ultramarine Blue- 285033
Nubix E-37 Ultramarine Blue
Nubix V-5 Ultramarine Violet- 285078
Nubix V8 Violet Ultramarine Pigment
Nucrel 2906 EAA/85
Nucrel 2906- EAA/85
Nucrel 699
Nuosperse 657NA
Nycoa 2012
NYCOA- 2012
NYCOA- 2237
Nylon 6,6/Isocor
Nylon 6/10
Nylon 6/12
Nylon 610
Nylon 612
Nytal- 7700
Omya BSH
Omyacarb, UF
Optifil T
Paliogen Red Violet- K501
Paraloid EXL-3330
Paraloid EXL-3691A
Parmax- 1200EP NAT-001 (pellets)
Parmax- 1200EW NAT 001 (powder)
Pebax ® 5533SA01
Pebax ® 7233SA01
Pebax 5033
Pebax 7233
PEG 600 PR
PEG 8000
Pellethane 2103-90A PU
Pellethane 2363-65D
Pellethane-55D
Pellethane-75D
Pellethane-90A
Petrothene NA420
Petrothene UE 635
Plasdone C-30 (Povidone USP)
Plasdone- K-90
Plasdone K-90 (Povidone USP)
Plexar 107A
Plexar G5723
Plexiglas V825
Poly(1-butene), isotactic
Poly(acrylamide-co-acrylic acid)
Poly(ethylene glycol)
Poly(N-isopropylacrylamide)
Poly(vinyl chloride-co-vinyl acetate-co-2-hydroxypropyl acrylate)
Poly(vinylacetate)
Polyethylene, low density
Polyox- WSR 11105NF
Polyox- WSR 303 NF
Polyox- WSR-N80
Polyplasdone® INF-10
Polyplasdone® XL-10
Polywax 1000
PolyWax 3000
Polywax- 400
Polywax- 500
Polywax 655
Profax 6524
Pumice, FFFF
Pumice, Medium
Pureblack 205 Carbon
PVDF Solef
Q1-4010 conformal coating
Q-Cel 6036
Quindo Violet- RV-6926
RapiThix A-100
Raven 430U
Raven 5000 (S)
Rayite 100
Rayite MDM-R
Reaxis™ C218
Reaxis™ C233
Reaxis™ C722
Reversatherm Blue 31-MP
Reversatherm Red 47-MP
Reversatherm Yellow Type D
Ricacryl- 3801, reactive oligomer
Rilsan Besno Nylon 11
Rilsan-Besno (Nylon II)
RTV Silicone Rubber Sealant
Ryton- PR27
Ryton PR39
SAN 050SF
SAN 335T Natural
Santo Light 5267
SBC- K-Resin BK10
SBC- K-Resin BK15
SBC- K-Resin KR01
SBC- K-Resin KR03
Sclair 2316
Sclair 31E
Sclair 72A
Selar PA- 3426
Serfene 400 (Latex)
Serfene 2022 (Latex)
Silastic Q7-4840, Part A
Silastic Q7-4840, Part B
Silicone Gum 5096D
Silicone Gum 94305
Silicone Gum 94305, 0LB, pt catalyst
Silicone Gum 94405 0LB
Silicone Gum 94506- Tufel II and CA-6 pt catalyst
Silicone Gum CA-5 0LB
Silicone Gum Tufel II with pt. Catalyst
Silicone GumBM10-112-8
Sorbitan Monopalmitate
Sorbitan Monosterate
Span 20
Spherical Alumina
Spherical 110P8
Sphericel 60P18
SpilFyter
Spilot 184- W/C
Staboxyl P
Stanyl- TW341 NAT 55B
Stanyl- TW341 NATL
Styrolux- 656C
Surlyn- 8945
Surlyn 9320
Surlyn- 9910
Surlyn- 9945
Sylgard 184 Base
Sylgard 184 Curing agent
Sylgard- 186
Sylgard 186 Silicone Elastomer Base, curing agent,
Sylgard 577 Silicone Adhesive/curing agent
Sylvaros PR140 (100% polymerized rosin)
Sylvatac RE 100 (Rosin Ester)
Sylvatec RE 40
Tecoflex EG-80A
Tecoplast- 470
Tecoplast TP-470-000
Tecothane
Tecothane TT-1072D
Tecothane- TT1095A
Tecothane- TT-1095A Trans 2607
Texin 270- H4101000
Texin 950
Texin 985
Texin 990
Tinuvin- 234
Tinuvin- 622 LD
Tinuvin- 765
Tinuvin- 770 DF
Tinogard NOA
Tinogard TS
Tinosan SDC
Titanium Powder- 250
Titanium Powder- 400
Titanium Powder- 70
Titanium Sponge Powder
Topas 5013X-11 Natural
Topas 6015
Topas 8007 S-04
TPX-MX004, polymethyl resin
TPX-RT18, polymethyl resin
Trogamid BX 7304 Natural
Trogamid CX7323
Trogamid CX9704
Trogamid T5000 Natural
Tween 40 ICI
Tween 81
Ubesta Polyamide 12
Ubesta Polyamide 12
Udel P-1700 HC
Ultem 1000
Ultramarine Violet V5
Ultranox- 626
Vansil- HR325
Vansil- W-50
Violet- 11
Violet- 92
Violet- E-532
Vistalon 8600
Vistamaxx 1120
Vistamaxx 6100
Vistanex MML-120
Vitel 1200B
Vitel 1870
Vitel 1912
Vitel 2300 BG
Vitel 2700 B
Vitel 3300 B
Vitel 5144A
Vitel 5833B
Vitel 7962
Vitel HM7109
Vitel KP7908
Vitel KP7962
Vitel V5833B
Wet Synthetic mica- F<10
Wet Synthetic mica- F<15
Wet Synthetic mica- F05-25
Wet Synthetic mica- F1040
Wet Synthetic Mica- F1060
Wet Synthetic mica- F2080
Wet Synthetic mica- SD Nano mill
Wet Synthetic mica- Sonicated
Wollastonite- M3 Wollastocoat
Wollastonite- Nyglos 8
Wollastonite- Nyglos M3
Xanthan Gum
XI Plas Blue- 35
XI Plas Blue- 36
XI Plas Blue- 70
XI Plas Violet- 13
XI Plas Violet- 26/31
XI Plas Violet- 37
Z-6030 Silane
Z-6040 Silane
Z-6173 Silane
Zeonor 750R
Zeonor 1020R
Zeonor 1420R
Zylar 220
Zylar 94-560A
Zylar 94-568A

Equipment at Bay Materials

admin — Thu, 02 Apr 2009 19:47:10 +0000

Along with refreshing the website, John performed an equipment inventory to determine what processing equipment we had in a “good to go state”. Many of these devices are used regularly for our manufacturing or prototyping, but are still frequently available for other projects and custom applications.

So, without further ado, if you were curious about what hardware we have on-line right now, wonder no more!

Extrusion

Wayne Machine 2” Extruder
Randcastle 3/4” extruder
Randcastle 5/8” extruder
8” Stainless Steel Roll Stack (heat/cool)
Various size sheet dies (4”, 6”, 9”)
Fiber or Rod profile dies.
Mini take up
Dessicating dryers

Compounding & Accessories

Buss Kneader 30mm Melt Mixer
Accurate Feeders
Brabender mixers (60 cc capacity)
Pelletizer
Ball Mill

Forming/Compression Molding

75 Ton Wabash Hydraulic Press
Manual Hydraulic Presses (PHI and Carver)
Biostar Thermoformer

Ovens

Vacuum Ovens
Circulating hot air ovens
Low Dew point – Dessicant Oven
Humidity Chambers
Environmental ovens

Converting/Packaging

Sheet feeder, Guidolin Davide
Die Cutter, ATOM SE25
Heat Sealer
Pad Printer

Solutions/Adhesives/Gels Handling

Helicone double blade mixer 1.7 kg capacity (vacuum, N2 capable)
25 gallon reaction kettle (heated)
Barinco high Shear mixer (liquids)
Overhead mixing (pail and drum mixers)
A/B meter mix dispenser, DOPAG
Solution coating line
Meir rod coating
UV Curing Station- Dymax 400W
Spin coater
Syringe filling
Adhesive dispenser EFD
Micro dot dispenser
Solution pressure filtration, Millipore

Hello, Bay Area!

admin — Thu, 19 Feb 2009 17:52:43 +0000

Bay Materials is kicking off a more focused services business with this brand spankin’ new website. We hope to keep adding to it based on feedback and our increasing capabilities in the future.

In the meantime, let us know what you think in the comments.