Premseal BR General Purpose Butyl Based Gun Mastic, Grey, 310ml

£4.73 Incl. VAT

117 In Stock

Availability: 117 In Stock
£4.73 Incl. VAT

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 Premseal BR General Purpose Butyl Based Gun Mastic, Grey, 310ml

A highly adhesive duty and synthetic resin sealant , which gives a long lasting weather resistant seal.

The sealant sets by release of solvent but maintains a soft , malleable consistency providing excellent adhesion to most common construction surfaces

Because of its non-drying nature , it is perfectly suited for:

  • Low Joint Movement sealing in roofing & cladding
  • Bedding aluminium window frames into timber sub-frames
  • Sealing joints & seams in low pressure duck-work
  • Sealing flashing
  • General sealing in caravans and boats
  • Bedding of profiled foam fillers and cladding applications
  • Product Type - Mastic Cartridge Sealant
  • Size - 310ml
  • Colour - Grey
  • Weight - 0.5kg
  • Movement - +/- 10% in lap & cover joints
  • Life Expectancy - 15 to 25 years, depending upon temperature & joint design


  • What is BR Mastic?
    It is a non drying Adhesive synthetic resin sealant.

  • What is it used for?
    BR is ideal for Joining low movement joints in a roof or cladding system, bedding aluminium window frames into timber sub frames, sealing the joint between flashings, sealing foam fillers and can even be used as general sealant for Caravans and Boats.

  • How does this product 'set'?
    This product is non drying, which means it maintains a soft, malleable consistency that provides excellent adhesion.

  • Is there anything else I require?
    This is a gun type mastic, if you do not have one already, we supply a Skeleton Cartridge Gun to use this with.