See more Roof sealants


Right chevron

Building supplies

Right chevron

Roofing supplies

Right chevron

Roof sealants

Right chevron

Bostik Black Waterproof sealing compound Tin 1kg

Sold & shipped by B&Q

Bostik Black Waterproof sealing compound Tin 1kg
Was £17.45 £13.50
Save £7.45
£10 per KG
Checking availability...
Checking availability...

Product details

Product information

Bostik Flexacryl Instant Repair for flat roofs is a flexible, single coat waterproofing compound that offers immediate waterproofing over most conventional roofing substrates.

  • Not CE marked
  • Keep out of reach of children. Refer to pack and safety date sheet before use

Features and benefits

It can be brushed straight from the tin onto substrates such as old roofing felt, asphalt, bituminous roof coatings, cement, concrete, lead work, metal, brickwork, slate and rigid PVC. Its long-lasting formula makes it ideal for emergency repairs or general waterproofing of flat roofs and can be applied to wet or dry surfaces.

  • Instant roof repair compound
  • One coat application
  • Can be applied in damp conditions
  • Flexible and long lasting

Health and safety

Please note that this item has additional safety or regulatory datasheets available. The product may have possible health and safety hazards covered in these documents. Refer to the container for full information and always follow the instructions.



Container typeTin
Pack quantity1
Application methodBrush
Colour groupBlack
Maximum application temperature35°C
Minimum application temperature5°C
Product weight1000g
VOC levelHigh
Product code5021523175124