Silicone
Silicone Endless Gasket
Seamless vulcanized endless silicone gaskets for large manhole covers & vessels.
Large-diameter endless O-rings and rectangular lip seals produced by precision hot-plate vulcanization of extruded silicone profiles. Creates a strong, seamless joint that eliminates leak-prone manual butt-gluing on site.
Representative image · Silicone
Specifications
Technical profile
- Manufacturing
- Precision hot-plate vulcanization / corner moulding of extruded profiles
- Joint strength
- Vulcanized joint tensile strength > 90% of parent cord material
- Size range
- From 200 mm ID up to 5000+ mm diameter endless loops or frames
- Profiles used
- O-ring cord, square cord, lip seals, U-channels, custom profiles
- Material grade
- FDA compliant white, translucent, or red silicone (40–70 Shore A)
- Temperature
- -60 °C to +230 °C continuous service
Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.
Key benefits
Why this product
- Eliminates hard, brittle glue spots and leak paths common in cold-glued site gaskets
- Economical solution for ultra-large diameter vessel domes and filter press plates
- Allows custom rectangular and multi-angle picture frame seals without expensive giant moulds
- Withstands heavy mechanical clamping loads without joint parting or separation
Applications
Typical industries
FoodPharmaChemicalBreweries
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Need this silicone endless gasket for your line?
Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.

