- Remains permanently plastic under a tough skin
- Excellent adhesion to most substrates
- Will not bleed into porous surfaces
- Easy smoothing and clean-up with Turps or White Spirits
Selleys Butyl Mastic Sealant is a butyl rubber based mastic which forms a smooth tough skin, but remains permanently plastic underneath.
Offering excellent adhesion to most substrates, Selleys Butyl Mastic is ideal for sealing gaps and joins. It can be used on timber, glass, concrete, masonry, aluminium, steel, marble and more. Available in White, Grey and Black.