Stelmax 1961 Gap Filler

Stelmax 1961 Gap Filler and Sealant 300ml

The Stelmax 1961 Gap Filler is a trusted solution for sealing and bonding PVC materials, widely used across the window industry. Its high-performance formula combines PVC resin, pigments, and plasticisers to provide strong adhesion and a reliable bond.

Suitable for use on rigid and plasticised PVC, it also adheres effectively to porous substrates, making it a versatile choice for installations and repairs. The high solid content ensures larger gaps can be filled with ease, creating durable, maintenance-free joints. This sealant is widely used in the window industry for frame installation and attachments. Once dried, it is comparable to high-quality rigid PVC. 

Key benefits include:

• Excellent, strong adhesion to PVC and porous substrates

• High solid content for filling larger gaps

• Weather, UV and chemical resistance once cured

• Rapid skin formation on application to protect against dust and debris

• Water-resistant, colourfast and UV stabilised seal

• 300ml tube may be used in a standard sealant application gun

Available in White and Mahogany, Stelmax 1961 also offers RAL colour matching on request – please contact us for details and a quotation.

⚠️ Due to its flammable nature, this product is available by courier delivery only.