Due to the closure of 3M Northallerton, this product is now discontinued. Please contact our technical team for a suitable alternative.
3M Clear Intumescent Sealer LS4000 CL is a clear sealer, for use with the 3M Scotchkote LS4000. Together, they provide a fire retardant coating to internal wooden substrates.
3M Clear Intumescent Sealer LS4000 CL formerly Thortex Pyro-Tech CS Lacquer, Copon LS4000 CL is a clear solvent based SEALER COAT FOR SCOTCHKOTE LS4000 which is fire-retardant and durable. It is specifically developed and MUST be in conjunction with Scotchkote Clear Intumescent LS4000 for internal wooden surfaces.
Fire retardant coatings are NOT designed to upgrade doors to fire doors, fire retardant coatings will provide Class O spread of flame but will NOT provide any minutes protection.
3M Clear Intumescent Sealer LS4000 CL is best used for interior wood and substrate surfaces where extra fire resistance is a necessity.
3M Clear Intumescent Sealer LS4000 CL can be applied using a brush, roller or airless spray and offers very good application properties. It provides moisture protection to the Scotchkote Intumescent Coating LS4000 without affecting the performance of fire resistance.
Surfaces and Environment
3M Clear Intumescent Sealer LS4000 CL formerly Thortex Pyro-Tech CS Lacquer, Copon LS4000 CL is used for interior wooden surfaces and substrates which have been prepared and primed correctly in both domestic and industrial surroundings.
- Formerly Thortex Pyro-Tech CS Lacquer, Copon LS4000 CL
- A single pack solvent based durable clear sealer
- Specifically developed and MUST be used with Scotchkote clear intumescent LS4000 for internal wooden surfaces
- Offers good application properties by brush, roller or spray
- Available in a satin finish
- Provides a degree of moisture protection to the scotchkote intumescent coating LS4000 without detriment to the fire performance
- LS4000 CL is touch dry in 2 hours
- Theoretical Coverage rate 16.7m2 per litre
- Available in 5 litres