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Geocel Marine Silicone Rubber Sealant

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Geocel Marine Silicone Rubber Sealant is a 1-part acetoxy silicone high modulus viscous paste which has been formulated for watertight sealing in marine applications.  It can be used to fill and caulk gaps, joints and cracks around marine craft, and is non-hazardous, non-flammable and safe for fish when fully cured. The 78g pack includes an applicator.


  • Geocell Marine Silicone Rubber Sealant is suitable for external use and is resistant to salt and fresh water
  • Can be used for sealing around hatches and portholes, insulating electrical connectors, locking nuts and bolts against vibration breakdown, sealing trunking and pipework, in-situ gaskets for water pumps/exhaust systems and creating water tight joints.  Suitable for use on glass
  • Not suitable for painting
  • Temperature range: -55 oC to +150 oC
  • Tooling time: 5 minutes
  • Skin Time: 20 minutes at 23 oC
  • Cure Time: 3 mm per 24 hrs
  • Hardness: 20-25 Shore A
  • Movement accommodation: +/-20%
Geocel Marine Silicone Rubber Sealant