One Silicone Gasket. Infinite Configurations. Zero Compromise. A catalog gasket comes in fixed diameters and fixed thicknesses. Your valve body flange, pump housing face, or machinery inspection cover was not designed around a catalog. At, every silicone sealing gasket is compression-molded to your exact dimensions — ID, OD, bolt hole pattern, thickness, and cross-section profile — all from 100% virgin silicone compound with no regrind and no filler. Round, oval, rectangular, D-shape, or irregular contour with multiple bolt pass-throughs. Standard size range from 5 mm to 500 mm across the sealing face, with custom dimensions outside this range available on request. Send your drawing. We mold your gasket.High-Temperature Performance That Defines Silicone Silicone seals where other materials fail. Our gaskets maintain full elasticity and compression recovery from -60°C to +230°C in continuous service, with excursions to +260°C tolerated without permanent deformation. This is the gasket you install between the valve body and actuator on a high-pressure steam line, on an autoclave door that cycles from ambient to +200°C five times daily, or on an engine exhaust gas recirculation flange where thermal shock from cold start to full load is measured in seconds. Silicone does not harden, does not crack, and does not lose its spring-back after thousands of thermal cycles. NBR and EPDM gaskets fail in this environment. Silicone does not.Waterproof Under Pressure — IP67 and Beyond Precision-molded flatness across the entire sealing face eliminates the micro-leak paths that plague die-cut sheet gaskets. Combined with silicone's inherent flexibility to conform to minor flange surface irregularities, the result is a gasket that achieves IP67-level waterproof sealing without excessive bolt torque. Hydrostatic immersion testing on random production samples validates ingress protection per batch. For outdoor valve actuators, submersible pump housings, marine deck equipment, and any flange joint exposed to rain, washdown, or high-humidity environments, this gasket is the barrier between your internal components and the outside world.Valve and Heavy-Duty Machinery Sealing — The Real Test Valve bonnet gaskets, body-to-bonnet seals, and actuator mounting gaskets live in the harshest zone of any fluid system — in direct contact with process media on one side and atmospheric exposure on the other, under pulsating pressure, thermal cycling, and continuous vibration from nearby pumps and compressors. A gasket that takes a compression set under these conditions develops a leak path, and a leaking valve gasket means unscheduled shutdown. Our silicone gaskets are formulated with optimized compression set resistance specifically for bolted flange joints, maintaining sealing force over extended service intervals. In heavy machinery — hydraulic pump mounting faces, gearbox cover plates, compressor head gaskets, and engine accessory drive seals — these gaskets absorb vibration instead of transmitting it, reducing bolt loosening and joint relaxation over time.Multi-Size Manufacturing Without the Tooling Penalty Custom gaskets typically mean custom mold costs that destroy the budget on small-batch orders. Our in-house CNC mold shop produces single-cavity and multi-cavity tooling in 5 to 10 working days, with mold cost fully credited against production orders over 5,000 pieces. MOQ starts at 500 pieces for custom dimensions. For prototyping and low-volume requirements, we offer bridge tooling in aluminum at reduced cost — same precision, shorter lead time, ideal for design validation and field testing before committing to full production tooling. You pay for the gasket, not for the privilege of being a customer.| Standard or Nonstandard | Customized Nonstandard |
| Size | Customized according to customer drawings |
| Material Type | NR/FKM/EPDM/SILICONE/NBR |
| Color | Customized according to customer drawings |
| Hardness Range | 20-90 Shore A |
| Application | For all industries |
| OEM ODM | Available |
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Q: How long does the mold opening and mass production take?
A: The mold opening cycle is generally 7-15 working days (depending on product complexity). After the mold is confirmed, the mass production cycle is 10-25 working days, which can be shortened for urgent orders with priority arrangement.
Q: Will the mold cost be refundable? What's the standard of mold fee refund?
A: Yes, the mold cost can be fully refunded when your cumulative order quantity reaches the agreed threshold (usually 5000-10000 pieces, subject to product size). The mold will be exclusively reserved for you during the cooperation period.
Q: What silicone rubber materials do you support? Can you meet certification standards?
A: We support food-grade silicone, industrial-grade silicone, high-temperature resistant silicone, conductive silicone, etc. All materials can meet FDA, LFGB, RoHS, REACH.
Q: What payment terms do you accept?
A: We accept T/T (50% deposit before production, 50% balance before shipment), L/C at sight
Q: What shipping methods do you support?
A: Express: DHL, FedEx, UPS, suitable for samples or small orders; Air freight: Suitable for medium orders; Sea freight: Suitable for large orders, can be delivered to the designated port or door-to-door.
