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Materials available from Britech Injection Molded Plastics

 

Britech in Stock Resins
Click on each for specifications and description.

Design Guidelines

Acetal

Acrylic

Nylon 6

Nylon 6/6, Glass filled

Polypropylene

Polycarbonate

High Density Polyethylene HDPE

Acrylonitrile Butadiene Styrene (ABS)

Polybutylene Terephthalate (PBT)

Thermoplastic
Elastomer
(TPE)

ABS + Polycarbonate Alloy (ABS + PC)

Polystyrene (PS)

Polyethylene Terephthalate (PET)

ThermoplasticPolyurethane Elastomer (TPU)

This is not a comprehensive list; there are many more resins not listed. Contact us for additional availabilities.

 
Termoplastic Pellets

Compatibility with Rapid Injection Molding

Generally, any conventionally injection moldable material can be specified. We are happy to work with specific resins you already use and would like to supply to us.

Recyclable Thermoplastics

Thermoplastics such as nylon, polyethylene and polystyrene can be re-melted and made into different products. Call one of our trained engineers about recyclable material today.

Durability / Applications

Our engineers and consultants have complete knowledge of many different resins properties and applications. We will be with you all the way as you proceed through the process. For example there is a great variance in the hardness of thermoplastics and how they react to very cold weather. Elastomer's have flexibility associated with rubber which is different than other thermoplastics. As you proceed to mass production of your product the Britech staff is always available to help. Contact us anytime.

Availability of custom colors

Colors are available, and quickly if a rough approximation is acceptable. Added colorants are approximate. Customers are responsible for verifying actual parts meet their color requirements. These additives come in pellet form and are mixed with the resin you choose if it is compatible. Final resin color depends many factors including shades of the natural colored resin.

Acetal (POM) (Polyoxymethylene)

Acetal polymers are semi-crystalline. They offer excellent inherent lubricity, fatigue resistance, and chemical resistance. Acetals suffer from outgassing problems at elevated temperatures, and are brittle at low temperatures. Glass filled, and added lubrication grades are available, flame retardant grades are not.

Applications: Mechanical Automotive, Business Machine and Household Appliance, Components i.e. Slides, Gears, Cams, Bushings, Door Handles and Seat Belt Parts.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

6000-22,000 psi

120,000-170,000 psi 180°-300° F  

Acrylic (PMMA) (Polymethyl methacrylate)

Acrylic PMMA is a tough, highly transparent material with excellent resistance to ultraviolet radiation and weathering. It can be colored, molded, cut, drilled, and formed. Acrylic is an economical alternative to polycarbonate (PC) when extreme strength is not necessary. It is often preferred because of its moderate properties, easy handling and processing, and low cost, but behaves in a brittle manner when loaded, especially under an impact force.

Applications: Automotive Transparent Items such as Head/Tail Lenses and Trim, Household Light Fixtures and Decorative Items, Safety Equipment and Shields.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

2800-10,9000 psi

221,000-534,000 psi 183°-217° F  

Nylon 6-PA (Polyamide)

Nylons are semi-crystalline polymers with a good range of properties. Nylons are widely used because they have a good cost to performance ratio. Lower numbered nylons, 6 ,6-6, 4-6, absorb moisture and change their properties as a result. Nylons have been compounded with reinforcements, fillers and additives to produce a very wide variety of properties. Nylon 6 has the lowest modulus of all nylon grades.

Applications: Automotive components, Bearings, Electronic Connectors, Gears, Consumer Products and Industrial products.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

6,000-24,000 psi

390,000-1,100,000 psi 200°-350° F  

Nylon 6/6-PA (Polyamide)

Nylons are semi-crystalline polymers with a good range of properties. Nylons are widely used because they have a good cost to performance ratio. Lower numbered nylons, 6 ,6-6, 4-6, absorb moisture and change their properties as a result. Nylons have been compounded with reinforcements, fillers and additives to produce a very wide variety of properties. Nylon 6-6 offers better properties than nylon 6 without being as costly as nylon 4-6. It has the best abrasion resistance of all nylons. Verton, long glass fiber filled materials, by LNP, are excellent metal replacement materials.

Applications: .Automotive components, electronic connectors, gears, consumer products and industrial products.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

8,000-24,000 psi

430,000-1,100,000 psi
220°-350° F
 

PP (Polypropylene)

Polypropylene is a widely used, semi-crystalline material. It has been extensively compounded to provide a wide range of properties at a wide range of costs. In general, polypropylene is a low temperature material with excellent chemical resistance. It has no known solvent at 73 F. Polypropylene is difficult to mold to extremely close tolerances.

Applications: Packaging, industrial components for fluid processing, household goods, automotive and electrical hardware.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

4,500-18,500 psi

210,000 -1,500,000 psi 150°-300° F  

PC (Polycarbonate)

Polycarbonate is an amorphous material with excellent impact strength, clarity, and optical properties. It is very widely used and a wide variety of compounds are available. Polycarbonate has excellent mechanical properties, and can be molded to tight tolerances. It is attacked by solvents and petrochemicals, and its weatherability is only adequate.

Applications: Automotive Headlights, Business Machines, Consumer Products, Telecommunications, Medical Products and Mechanical Goods.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

9000-23,000 psi

340,000-1,400,000 psi 150°-300° F  

HDPE (High Density Polyethylene)

Polyethylene is a widely used, inexpensive, thermoplastic. It has good inherent lubricity, and is easy to process. Polyethylene has good to excellent chemical resistance. It is also soft and cannot be used in temperatures much above 150. As a family, they are light in weight and possess toughness, chemical resistance, impermeability as well as excellent electrical insulating properties. High density polyethylene is the hardest and stiffest version of this material. It does not have the impact strength of low density, but is more resilient.

Applications: .Consumer products, houseware items, electronic wire/cable insulators and medical products

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

3,200-4,500 psi

145,000-225,000 psi 130°-150° F  

ABS (Acrylonitrile Butadiene Styrene)

ABS plastics provide a balanced combination of mechanical toughness, wide temperature range, good dimensional stability, chemical resistance, electrical insulating properties, and ease of fabrication. ABS plastic is available in a wide range of grades including medium and high-impact, heat-resistant, plateable fire-retardant, and both low and high gloss varieties.

Applications: Computer housings, small appliances, automotive interior trim and medical components

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

5000-7500 psi

270,000-380,000 psi 140°-200° F  

PBT Polyester (Polybutylene Terepthalate)

PBT polyesters are semi-crystalline. They are versatile materials with a good range of properties. They have excellent electrical properties and are abrasion resistant. PBT has been extensively compounded giving a very wide range of properties. PBT performs much like Nylon but can handle higher temperatures and does not absorb moisture. PBT has excellent impact strength but is very notch sensitive. PBT is very anisotropic in shrinkage, so it is difficult to mold to extremely tight tolerances.

Applications: Industrial equipment applications, business equip, automotive housings-under the hood, power tool casings.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

6,000-13,000 psi

300,000-1,200,000 psi 250°-420° F  

TPE (Thermoplastic Elastomer)

Thermoplastic elastomers (TPE) are a combination of polymers (usually a plastic and a rubber) which consist of both thermoplastic and elastomeric properties resulting in a product that is extremely easy to use in manufacturing a variety of products. TPEs require little or no compounding and no need to add reinforcing agents, stabilizers or cure systems.

Applications: Automotive Fluid Delivery Systems, Household appliances, Sporting goods, Electrical and Medical components.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

1,000-7,000 psi

5,000-800,000 psi 200°-300° F  

ABS + PC (ABS + Polycarbonate Alloy)

PC + ABS plastics offer improved strengths over ABS at a lower cost than Polycarbonate. Exceptional low temperature Impact Strength. The material can be modified by the addition of glass fiber, mineral fillers and flame retardant.

Applications: Automotive exterior and interior components, medical hardware, electrical housings, computers, monitors, business equipment housings and enclosures

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

6400-9150 psi

300,000-400,000 psi 140°-210° F  

PS (Polystyrene Crystal)

Crystal polystyrene is the cheapest thermoplastic available. It has properties to match its price. It is transparent and has good optical properties. It has very low Impact Strength.

Applications: Household Goods, Containers, Furniture, Housings and Packaging.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

5000-7500 psi

380,000 -480,000 psi 100°-150° F  

PET Polyester (Polyethylene Terepthalate)

PET polyesters are semi-crystalline. They are versatile materials with a good range of properties. They have excellent electrical properties and are abrasion resistant. PET has not been as extensively compounded as PBT because it is more difficult to process. PET has a higher modulus than PBT. Like PBT, PET is very anisotropic in shrink, therefore it is difficult to mold to extremely close tolerances.

Applications: Reusable bottles, Pacifiers, Sippy cups, Bottle sterilizer lids, Medical devices, Housewares

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

7,000-23,000 psi

350,000-3,000,000 psi 250°-420° F  

TPU (Thermoplastic Polyurethane Elastomer)

Thermoplastic polyurethane elastomers exhibit excellent abrasion and wear resistance and high tensile and tear strengths. TPUs are tough, durable, easy to clean and well-suited to applications that demand the elasticity of rubber combined with high stability. In addition, the inherent translucency of these products makes it easy to color and that is an added benefit in many applications.

Applications: .Automotive and Aerospace Applications, Medical and Optical purposes, Electrical Wire & Cable Coverings.

 

Tensile Strength

Flexural Modulus

Max Temp.

 
 

6960-12,000 psi

260,000-340,000 psi 160°-250° F  
 
 
 
 
 

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