Wurth 25 LM Standard Line Wood Polyurethane Silicone Sealant White 310ml

Polyurethane-based sealing-adhesive material for similar / dissimilar materials

Characteristic elasticity (Shore A Hardness / 25) for adhesive material to absorb intense stresses

Ideal for joints with constant width changes (contraction-expansion due to changing weather conditions)
High mechanical strength
Resistance to UV, humidity, aging

Can be painted

Good adhesion to many different materials, such as plaster, wood, aluminum, ceramics, etc

Area of application
It is recommended for sealing-welding similar/dissimilar materials in various industrial, building and domestic applications, with the ability to adhere to different substrates.

Instructions
Porous surfaces must be free of dust and other friable debris by blowing with compressed air. The same with metal surfaces. It is recommended to use paper tape on the edges of the joint to achieve the best possible aesthetic result. When we have porous substrates, such as concrete, it is recommended to use a primer to strengthen the adhesion of the material. Before placing the sealing material, a joint dimensioning must be done. Ideally the depth of the joint should be equal to half its width. Where a greater joint depth is required, it is recommended to use plastic filler cord or polyurethane foam to act as a substrate.
Use requires a cartridge gun and a special spatula to smooth the surface of the sealant.