Envirograf High-Temp Silicone Sealant
Envirograf Silicone Sealant is a ready to use fireproof silicone, reacting with moisture in the atmosphere to form a flexible, durable, and halogen-free seal that is almost odourless.
- Compatible with water based and solvent based paints
- No plasticizer migration
- Non-corrosive to metals
- Primerless adhesion to most materials
- Can withstand movement of +/- 20% in constant service throughout a wide temperature range
High performance fire resistant silicone sealant for most glazing, sealing, bonding, repairing tasks. For use at joints between many building elements and materials giving a water and gas tight seal.
Supplied in 310 ml tubes, available in black, white, grey and clear, and suitable for alkaline substrates, such as concrete, mortar and fibre cement.
Shelf life of 18 months if stored in tightly closed containers at temperatures not exceeding 25°C.
Tack free time: 8 minutes
Skin forming time at 23°C / 50% rel. humidity: 15-30 minutes.
Shrinkage on cure ISO 7 390, Profile U 20 non-sag.
This product was used in a number of fire resistance tests employing the general procedures and criteria or BS476: Part 22: 1987. It was used for sealing around a number of penetrations and expansion joints. Integrity ratings of up to 240 minutes were achieved.
Tested to BS476 Parts 20, 21 & 22 (1987) when used for sealing around a number of penetrations and expansion joints. Integrity ratings of up to 240 minutes were achieved.
A white intumescent coating for application to rock fibre slabs and non-fibrous slabs. Upgrades thei...