EXPERT SOLUTIONS FOR DAMP, TIMBER & BASEMENT WORKS

TRUSTED BY CONTRACTORS & PRESERVATION SPECIALISTS

  • Trade Quality Products

    Trusted by professionals nationwide

  • Same-Day Dispatch Available

    For orders placed before 3PM

  • Specialist Technical Support

    Expert help when you need it

  • Up to 30-Year Guarantees Available

    For BIOKIL. Approved Contractors ONLY

Bostik  |  SKU: 30811960

Bostik Flexacryl Instant Repair – Black 1kg

Regular price £27.39

Customer Services

Got a query? Call 0330 055 8210

We're open from 8am to 5pm, Monday to Thursday, and 8am to 4:30pm on Friday.

Delivery and Shipping

Delivery is £12.50 + VAT to UK Mainland. Orders over £100.00 + VAT qualify for free delivery, except for certain products—these will be clearly shown at checkout.

Orders placed by 3pm (stock permitting) are dispatched the same working day on a next working day service (not guaranteed).

Some areas, like Northern Scotland, may take 2–3 working days. 

Northern Ireland, Channel Islands and Isle of Man at extra cost – contact us for a quote

We're open:
Mon–Thurs: 8am–5pm
Friday: 8am–4:30pm

Call us: 0330 055 8210

Bostik Flexacryl Instant Repair – Black 1kg

Bostik Flexacryl Instant Repair is a flexible, fibre-reinforced roof repair coating that immediately waterproofs most conventional roofing substrates in one coat. It is ideal for emergency roof repairs or general maintenance. It can be applied to wet or dry surfaces and will withstand the rigours of ponding, making it ideal for use in gulleys and over cracks in edge details, vents, upstands and more. The fibres in Bostik Flexacryl bridge small cracks and enable the coating to flex with changes in temperature. Apply Bostik Flexacryl straight from the tin in one coat onto roofing substrates such as old roofing felt, asphalt, bituminous roof coatings, cement, concrete, leadwork, metal, brickwork, slate and rigid PVC. No primer is required on sound, nonporous substrates. It can also be applied to gutters and flashings to stop leaks.

Key Features

  • Instantly waterproofs - ideal for emergency repairs or maintenance
  • Apply to wet or dry surfaces
  • Fibre-reinforced for strength & flexibility

Coverage: 1kg to 2kg (approx.) per m2

Product safety

WARNING: Flammable liquid and vapour. May cause an allergic skin reaction. May cause drowsiness or dizziness.

Contains 2-methoxy-1-methylethyl acetate; 1-methoxy-2-propanol; Maleic anhydride. Always read the label and product information before use.

Download the Bostik Flexacryl Instant Repair – Black 1kg technical data sheet (PDF)

Download the Bostik Flexacryl Instant Repair – Black 1kg safety data sheet (PDF)

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.