Product Highlights
| Feature | Benefit |
|---|---|
| Fibre Reinforced | Superior tensile strength and resistance to cracking |
| Flexible Formula | Moves with the substrate to prevent seal failure during thermal expansion |
| 2.5L Container | Ideal for medium-sized roofing and sealing projects |
Product Specifications
| Specification | Detail |
|---|---|
| Product Name | Everbuild Black Jack 903 Bitumen Trowel Mastic |
| Volume | 2.5 Litres |
| Type | Fibre Reinforced Bituminous Compound |
| Application Method | Trowel Applied |
| Colour | Black |
| Suitable Surfaces | Mastic asphalt, roofing felt, corrugated iron, metal guttering, downpipes |
| Key Properties | Weather resistant, flexible, durable, UV stable |
How To Use
Ensure the surface is clean, dry, and free from debris before application. Using a trowel, apply Black Jack 903 directly to joints, holes, or damaged areas, working it firmly into place to create a secure seal. Allow adequate curing time before exposing the sealed area to water or extreme weather conditions.
Tips & Advice
For best results, lightly dampen the substrate before application to improve adhesion and workability. In cold weather, warm the mastic slightly to improve flow and application ease, ensuring a smoother, more effective seal.
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