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🛠️ Fix it fast, fix it smart — waterproofing that works when you need it most!
Bostik Flexacryl Instant Repair is a high-performance, fiber-reinforced waterproof compound designed for flat roofs and gutters. It cures fully in just 1 hour, providing a flexible, durable matte black finish that works on both wet and dry surfaces. Ideal for emergency repairs or routine maintenance, this 5kg tin delivers instant, one-coat waterproofing to protect your roof with professional-grade reliability.
| ASIN | B00G96Y8RU |
| Age Range Description | Adult |
| Best Sellers Rank | 223,878 in DIY & Tools ( See Top 100 in DIY & Tools ) 202 in Waterproofers |
| Brand Name | Bostik |
| Colour | Black |
| Colour Code | #000000 |
| Container Type | Tin |
| Coverage | one-coat waterproofing |
| Customer Reviews | 4.7 4.7 out of 5 stars (12) |
| Dry Time In Hours | 1 |
| Finish Type | Matte |
| Full Cure Time | 1 Hours |
| Global Trade Identification Number | 05021523175100 |
| Included Components | 1x Bostik Flexacryl Instant Repair for Flat Roofs, Colour: Black, 5kg |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | True |
| Item Form | Paste |
| Item Type Name | Waterproof Compound |
| Item Volume | 5 Kilograms |
| Manufacturer | Bostik |
| Model Number | 30811957 |
| Paint Type | Waterproof Compound |
| Part Number | 30811957 |
| Product Warranty | No guarantee |
| Size | 1 kg (Pack of 1) |
| Special Features | Long Lasting, Flexible |
| Specific Uses For Product | Flat Roofs and Gutters |
| Surface Recommendation | Roof |
| Unit Count | 1000.0 Grams |
| Water Resistance Level | Waterproof |
D**E
Good waterproofing for flat roofs
Brilliant stuff just very sticky and just throw brush away when finished
M**L
doesn't go on as well on a damp surface so best wait for a dry day
I have used alot of this product recently.doesn't go on as well on a damp surface so best wait for a dry day. I have no hesitation in buying more when the time comes.
M**R
Five Stars
This is great just what it says on the tin would recommend
B**N
Five Stars
Excellent quality even seals in the damp
P**N
Five Stars
Very pleased with service and the product for which many thanks.