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Nothing is more important than choosing the right material for your plastic knob or handle. Careful consideration of the end user and application can save time and money in the long-run. Don’t know where to start? Here is list of materials for both thermoset molding and thermoplastic molding and their applications to get you started. Talk to our highly trained technical sales and engineering staff if you have questions. We work with hundreds of various materials and constantly reviewing new materials as they come on the market.
What materials are available for plastic knobs and which is right for my application?
Thermoplastic Materials | ||||
| Name | Properties | Applications and Uses | ||
| Acetal | Extremely rigid, high melting point, high strength, good frictional properties, resistance to fatigue | Gears, bearings, bushings, cams, housings, conveyors, plumbing fixtures, gas tank caps, automotive door handles, seat belt components, and zippers | ||
| Acrylics | Exceptional resistance to long-term exposure to sunlight and weathering, outstanding clarity, good light transmission | Swimming pools, skylights, sinks, washbasins, room dividers, and the tail lights on automobiles | ||
| Acrylonitrile-Butadiene-Styrene (ABS) | Outstanding impact strength and high mechanical strength, great as a substrate for metalizing | Appliances, automotive parts, pipe, business machines, telephone components, shower heads, door handles, faucet handles, and automotive front grilles | ||
| Nylon | Known for their stability and adaptability | Automotive parts, electrical and electronic applications, and packaging | ||
| Polyamide-Imide | Exceptional mechanical, thermal and chemical resistant properties | Aerospace, heavy equipment, and automotive | ||
| Polyarylates | Known for its strength, toughness, chemical resistance, and high melting points | Automotive, appliances, electrical and electronic applications, ovenware, and outdoor lighting | ||
Thermoset Materials | ||||
| Name | Properties | Applications and Uses | ||
| Alkyds | Excellent heat resistance, dimensionally stable under components,excellent dielectric strength | Electrical applications like circuit breaker insulation, switchgear, cases, housings, capacitor and resistor encapsulation, automotive parts, and coatings | ||
| BMC (Bulk Molding Compound) | Highly rigid, impact resistant, exceptional physical and aesthetic properties, high strength-to-weight ratio | Appliance parts, electric and electrical components, HVAC components, industrial light housings, automotive, recessed lighting baffles | ||
| Diallyl Phthalate (DAP) | Virtually no post-mold shrinkage, high impact resistance, resistant to sudden and extreme jolts and severe stresses, recommended for very high temperatures, chemical resistant, fungus resistant | Cross-linking agent, thermosetting molding powders, casting resins, and laminates, military, electronic components | ||
| SMC (Sheet Molding Compound) | This high quality composite material consists of resins, fiberglass, catalysts, and fillers. The material is pressed into sheets and then used for the manufacturing of compression-molded products. | Electric and electrical components, industrial light housings, automotive, transit and more | ||
