Bostik Flexacryl Grey 5KG

The Bostik Flexacryl Grey 5kg is a high-performance, fibre-reinforced, flexible waterproofing compound designed for emergency roof repairs and general maintenance. It provides immediate waterproof protection on a wide range of exterior surfaces and can be applied directly without the need for a primer in most situations. Suitable for both wet and dry conditions, it forms a durable, elastic membrane that bridges cracks and gaps while resisting movement and weather exposure. Ideal for roofs, gutters, flashings, and other vulnerable areas, it delivers long-lasting protection against water ingress on both new and existing substrates.

• 5kg fibre-reinforced waterproofing compound (grey)
• Provides immediate waterproof protection on application
• Suitable for wet or dry surfaces
• Flexible membrane that bridges cracks and gaps
• Ideal for roofs, gutters, flashings, and general exterior repairs
• Can be applied without primer in most cases
• Long-lasting, weather-resistant performance