Custom rubber parts are precision-molded elastomer components engineered to a buyer’s exact drawing, sample, or specification—rather than purchased as off-the-shelf stock. At Anlintech we compression-, transfer-, and injection-mold seals, gaskets, O-rings, and complex molded components in FKM/Viton, EPDM, NBR, silicone, and other specialist compounds, supplying automotive, medical, aerospace, oil & gas, electronics, and food customers across North America, Europe, and Asia.
Standard rubber parts come in fixed sizes and materials. Custom rubber parts are built around your application: the geometry, durometer (Shore A hardness), compound, color, and tolerance are all defined by your engineering requirements. Common custom parts include rubber gaskets, O-rings, seals, diaphragms, bushings, bumpers, grommets, and isolators. Because the tooling and compound are selected per project, custom molding delivers a precise fit, longer service life, and lower total cost of ownership than adapting a standard part.
Compound choice drives temperature range, chemical resistance, and compliance. Our most-requested elastomers:
| Material | Temp Range | Key Properties | Typical Uses |
|---|---|---|---|
| FKM / Viton® | -20°C to +205°C (-4°F to +400°F) | Excellent chemical & heat resistance, low compression set | Aerospace, oil & gas, chemical processing |
| EPDM | -50°C to +150°C (-58°F to +302°F) | Weather, ozone & steam resistance | Automotive, outdoor, weatherstripping |
| NBR (Buna-N) | -40°C to +120°C (-40°F to +248°F) | Oil & fuel resistance, low cost | Fuel systems, hydraulics, seals |
| Silicone (VMQ) | -60°C to +230°C (-76°F to +446°F) | Wide temp, FDA & USP grades, flexibility | Medical, food & beverage, electronics |
| Neoprene (CR) | -40°C to +120°C (-40°F to +248°F) | Weather, flame & moderate oil resistance | HVAC, marine, general industrial |
| HNBR | -40°C to +165°C (-40°F to +329°F) | High heat & oil resistance, abrasion | Automotive belts, oilfield |
For a deeper dive, see our EPDM vs NBR vs FKM and NBR vs FKM vs EPDM vs Silicone comparison guides, and the O-ring material selection guide.
We select the molding method by volume, geometry, and tolerance:
Our compression vs injection molding guide explains how to choose, and our rubber molding services guide for B2B buyers covers RFQ, tooling, and lead times.
Our typical MOQ starts around a few hundred pieces for compression-molded parts, lower for prototyping. See our RFQ guide for volume-based pricing.
A 2D drawing (PDF/DWG), 3D model (STEP/IGES), or a physical sample. Color, durometer, compound, and quantity let us return an accurate quote fast.
We operate an ISO 9001:2015 quality system. Material-level compliance (FDA, USP Class VI, ISO 10993, REACH, RoHS) is documented per project.
Prototype tooling can be ready in about 7 days; production runs ship in roughly 15–20 days after sample approval, depending on volume and compound.
Yes. We ship worldwide under FOB, CIF, or DDP terms, with full documentation for customs clearance.
Yes. Send the sample or spec sheet and we will reverse-engineer the durometer, color, and performance profile and validate it against your application.
Ready to start? Send your drawing or sample and our engineering team will respond within one business day. Request a quote → or review our frequently asked questions.
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