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Watco GRP Adhesive Mastic

Forms strong bonds with Watco Firm-Step products

Frequently bought together


A thick bead of mastic will help prevent rocking on uneven surfaces.

As a rule, 1 x 310ml tube is sufficient for any one of the following:

  • 5 x 600mm wide step covers
  • 3 x 1000mm wide step covers
  • 2 x 1500mm wide step covers
  • 2 x 1200mm wide step covers
Case studies

£3.90 (Ex VAT)

In stock

Tools and accessories

Watco GRP Skeleton Gun

Watco GRP Skeleton Gun

An essential tool for applying Watco GRP mastic

£5.00  (Ex VAT)

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Help & Advice

Contact our friendly and professional Technical Advisors for expert help and advice for your project. You can give us a call on 01483 418 418 or email

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