Plastic Washers.
Cannon Gasket cuts plastic washers from 0.001 inch film up through thick engineering stock at our ISO 9001 Fontana plant. Share OD, ID, thickness, material, and annual quantity. We come back with pricing, tooling cost, and lead time.
Quick facts about Plastic Washers
- Plastic washers do four jobs: insulate fasteners, separate dissimilar metals, bear load in low-friction joints, and seal where elastomers get chemically eaten.
- Electronics, aerospace avionics, medical devices, chemical processing plants, semiconductor fab, and food-contact equipment all run them.
- PTFE, Nylon, UHMW, Acetal, Mylar, Kapton, G-10 fiberglass, and polypropylene cover most specs.
Get pricing
Request a quote for custom plastic washers.
Plastic Washer Materials
Engineering thermoplastics for every environment.
Precision die-cut plastic washers and gaskets manufactured from a wide range of plastics and thermoplastic materials, including but not limited to PTFE, UHMW, nylon, and high-temp polyimide films, along with FEP, PEEK, and Santoprene. We hold +-.001 on critical dimensions to meet your most stringent dimensional requirements, with tighter tolerances than rubber. All washers are available with pressure sensitive adhesive on one or two sides through our in-house lamination.
PTFE / Teflon®
Widest chemical resistance and lowest friction of any thermoplastic. -328°F to +500°F service.
Learn more →UHMW
Ultra-high molecular weight polyethylene with outstanding abrasion and impact resistance.
Learn more →Nylon
Tough, wear-resistant, and cost-effective for general-purpose mechanical and electrical washers.
Learn more →Delrin® / Acetal
Precision-grade engineering plastic with dimensional stability and low moisture absorption.
Learn more →Kapton® (Polyimide)
High-temperature polyimide film up to +500°F with excellent electrical insulation.
Learn more →Mylar®
Strong, clear polyester film for insulation, shielding, and flexible electronics applications.
Learn more →Polycarbonate (Lexan®)
Impact-resistant transparent thermoplastic for protective and optical-grade washers.
Learn more →G-10 Fiberglass
High-strength glass-epoxy laminate with excellent electrical and mechanical properties.
Learn more →PVC
Rigid PVC washers with good chemical resistance and electrical insulation at low cost.
Learn more →Polypropylene
Lightweight, chemical-resistant thermoplastic for industrial and laboratory applications.
Learn more →HDPE
High-density polyethylene with good moisture and chemical resistance for general service.
Learn more →LDPE
Flexible low-density polyethylene for lightweight sealing and cushioning applications.
Learn more →Phenolic
Thermoset resin with high strength, heat resistance, and dimensional stability.
Learn more →Fibre
Vulcanized fibre washers for classic electrical and mechanical insulation service.
Learn more →ABS
Tough, machinable thermoplastic with good impact strength for general-purpose washers and spacers.
Learn more →Nomex®
Aramid-paper washers with high-temperature dielectric performance for transformer and motor insulation.
Learn more →Applications
Where plastic washers work.
Electrical Isolation
Dielectric washers for fasteners, transformers, and circuit assemblies.
Low-Friction Bearings
Thrust and flat bearing surfaces with minimal wear and lubrication.
Chemical Isolation
Fluid-contact washers resisting acids, bases, and aggressive solvents.
High-Temp Barriers
Thermal isolation and barrier washers in elevated-temperature service.
Food Contact
FDA-compliant polymers for food, beverage, and pharmaceutical equipment.
Precision Spacers
Tight-tolerance spacers for optical, scientific, and electronic assemblies.
Manufacturing Capabilities
In-house die-cutting and finishing.
High-Speed Stamping & Kiss Cutting
Precision high speed stamping and kiss cutting for short and long run volumes. No job is too large or too small.
In-House Die Department
Extensive tooling inventory and an in-house die department for rapid turnaround on new and repeat parts.
Prototyping & R&D
Prototyping services and capabilities to assist with R&D and design modifications.
Pressure Sensitive Adhesive
All washers available with pressure sensitive adhesive on one or two sides through in-house lamination.
Clean Room Stamping
Clean environment stamping to Class 10,000 for Medical, FDA, electronic, and scientific applications where a controlled level of particulate is required.
Stocking Agreements
Blanket orders, VMI, JIT, and Kan Ban programs to support scheduled releases and guaranteed deliveries.
Pad Printing
Pad print your part number, identification marking, or company name in various ink colors, per customer specifications or MIL-STD-130.
Packaging & Labeling
Parts bagged and tagged into specific quantities and labeled with P/N or any required information to meet your packaging specifications.
Industries Served
Trusted across regulated and industrial markets.
Frequently Asked Questions
Common questions about plastic washers.
Are you ISO 9001 certified?
Yes, ISO 9001:2015 certified. Documented quality management covers incoming material verification, in-process inspection, calibrated measurement, final inspection, non-conformance handling, corrective action, and full lot traceability. AS9100-ready for aerospace, with MIL-spec and FDA 21 CFR 177.2600 / USP Class VI grades available on request.
Does nylon washer absorb water?
Yes, standard Nylon 6 and Nylon 6/6 absorb water over time, which slightly expands the part. For long-term water contact specify PTFE, UHMW, or Delrin (acetal) instead.
Which plastic washer is best for electrical isolation?
PTFE, Kapton (polyimide), G-10 fiberglass, and Lexan polycarbonate all have excellent dielectric properties. Kapton and G-10 also hold up to high temperature, useful for transformer and motor applications.
Which plastic washer resists the most chemicals?
PTFE (Teflon) is chemically inert to nearly all industrial fluids, acids, and solvents. UHMW is next for abrasion plus moderate chemical exposure. Nylon handles most oils and fuels but swells in water over time.
Which plastic washer survives the highest temperature?
Kapton polyimide to +500°F continuous, PTFE to +500°F, G-10 fiberglass to +300°F, PEEK higher still on request. Standard nylon and UHMW cap around 200°F.
How fast do you return a quote?
Most RFQs come back within one business day. Simple profile updates to an existing tool quote same-day. Send a drawing, DXF, or competing part number and our engineering team reviews material, tolerance, and volume before pricing.
What is the minimum order quantity?
Minimums depend on the part and material. We cut prototype and first-article quantities for engineering evaluation, then scale up to production volumes from the same tooling. For high-volume programs we run JIT, VMI, and Kanban replenishment out of Fontana, California.
What should I send with an RFQ?
Ideal: a drawing or DXF, material spec (or compound family), estimated annual volume, and any regulatory callouts (FDA, USP Class VI, AS9100, MIL-spec). If you only have a sample or a part number from a competing supplier, send that and we will reverse-engineer the spec before quoting.
What are typical lead times?
Prototype and first-article parts usually ship in 5-10 business days. Production runs from existing tooling are 2-3 weeks depending on volume and material lead time. Rush and expedite options available on a case-by-case basis.
Need custom plastic washers?
From prototype to production, any material, any volume.
ISO 9001 CertifiedAS9100-ReadyMIL-Spec CompatibleFDA / USP Class VIEst. 1971ISO 9001 CertifiedAS9100-ReadyMIL-Spec CompatibleFDA / USP Class VIEst. 1971ISO 9001 CertifiedAS9100-ReadyMIL-Spec CompatibleFDA / USP Class VIEst. 1971ISO 9001 CertifiedAS9100-ReadyMIL-Spec CompatibleFDA / USP Class VIEst. 1971