Manufacturer of Silicone Sealing Gaskets
We manufacture silicone sealing gaskets using three complementary processes—compression moulding for high-precision O-rings and washers, extrusion for pneumatic seals with complex geometries, and fabrication with vulcanisation for ring or frame gaskets—enabling us to cover everything from standard O-rings to active sealing solutions with controlled air pressure and custom gaskets without mould investment, selecting the optimal process in each case based on geometry, volume and working pressure.
Gasket types
Silicone Flat Gaskets
Flat gaskets made from solid or sponge VMQ silicone. Cut by die, laser, or waterjet. Certified materials FDA, EC 1935/2004, UL94, EN 45545-2, USP VI, and ISO 10993. Industrial or ISO 8 cleanroom production under ISO 9001 and ISO 13485 control.
Silicone O-Rings
Silicone VMQ O-Rings molded by compression or injection. Static or dynamic sealing in critical applications. Hardness 30–90 Shore A. Certified materials FDA, EC 1935/2004, EN 45545-2, UL94, USP VI, and ISO 10993. Manufacturing in industrial environment or ISO 8 cleanroom.
Silicone Inflatable Seals
TIXAN’AIR® VMQ silicone inflatable seals. Controlled expansion for dynamic sealing in doors, autoclaves, ovens, and pressurized systems. Inflation pressure 0.5–4 bar. Compliance with FDA, EC 1935/2004, EN 45545-2, UL94, USP VI, and ISO 10993.
Vulcanized Silicone Ring Gaskets
Closed ring gaskets manufactured from extruded silicone cords and vulcanized by thermal or chemical bonding. Available in solid or sponge silicone, certified FDA, EC 1935/2004, UL94, EN 45545-2, USP VI, and ISO 10993. Manufacturing under ISO 9001 and ISO 13485.
Vulcanized Frame Gaskets
Silicone gaskets with closed geometry adapted for metallic or plastic frames. Vulcanized corners without breaking continuity. Hardness 10-90 Shore A. Compliance with FDA, EC 1935/2004, UL94, EN 45545-2, USP VI, and ISO 10993. Manufacturing under ISO 9001 and ISO 13485.
Selection according to application
O-Ring (Moulding): The universal solution for static and dynamic sealing in grooves. Offers the highest dimensional precision.
Flat Gasket / Washer (Die-cutting): For sealing between parallel flat surfaces (flanges) without a housing groove. Allows for short runs without tooling investment.
Pneumatic Seal (Extrusion): Sealing on demand. The seal inflates (typically 1-6 bar) to seal and deflates to allow the gate to open.
Vulcanised Gasket (Fabrication): The alternative to moulded gaskets when the diameter is very large (>500mm) or non-standard. Avoids tooling costs.
Formulations for Pneumatic Seals (High Tear)
Inflatable seals require "High Tear Strength" silicones to withstand cyclic inflation deformation:
Series 1 (Peroxide HD): Standard for inflatable seals. Hardness 40-70 ShA (-60°C to +200°C).
Series 10 (Platinum HD): Platinum cured. Higher purity for pharmaceutical sector.
Series 7 (HD + Abrasion): Higher wear resistance for dynamic applications or sliding doors.
Series 20 (HD + High Temp): For ovens and autoclaves up to +270°C.
Formulations for Autoclave and Steam Gaskets
Saturated steam degrades standard silicones (hydrolysis). We use protected formulations:
Series 22 (Steam Resistant): Improved resistance to steam and aromatic oils. Optimised for autoclave gaskets and sterilisation (-60°C to +200°C).
Series 4 (Low Compression Set): Excellent compression set values. The gasket recovers its original shape after prolonged pressure cycles.
Tolerances according to process
Moulding (O-Rings/Flat): ISO 3302-1 Class M2 (High precision moulded).
Extrusion (Inflatable): ISO 3302-1 Class E1 (profile) and L2 (length).
Fabrication (Vulcanised): Dimensional control of total perimeter after vulcanisation.
Thermal ranges:
Standard (VMQ): -60°C to +200°C.
High Temperature (THT): Up to +300°C (Peaks +315°C).
Autoclave (Series 22): +200°C with hydrolysis resistance.
Certifications:
Food Grade: FDA 21 CFR 177.2600, BfR XV, EC 1935/2004.
Medical: USP Class VI, ISO 10993.
Railway: EN 45545-2 (HL1/HL2/HL3).
RoHS and REACH compliance.
Do you need bespoke gaskets?
From a simple washer to a complex pneumatic seal. Send us your drawing or operating conditions.