Black Jack 903 Bitumen Trowel Mastic, Black, 5 Litre
Product ID: 50087866
🖤Flexible long-lasting seal
⏱️Fast drying in 24 hrs
🛠️Versatile multi-surface use
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🖤 Seal it fast, seal it right—Black Jack 903 keeps your projects flawless and flexible.
Black Jack 903 Bitumen Trowel Mastic is a fast-drying, flexible, and versatile bituminous compound designed for sealing, filling, and waterproofing a wide range of surfaces including roofing felt, metal gutters, and concrete. Ready to use straight from the tin, it offers professional-grade adhesion and durability in 1L, 2.5L, and 5L sizes, making it the go-to solution for both small repairs and large-scale building projects.
| ASIN | B0073S5P2A |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 12,329 in DIY & Tools ( See Top 100 in DIY & Tools ) 27 in Roof Coatings & Paints |
| Colour | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (540) |
| Date First Available | 31 Jan. 2012 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Included Components | B/J BITUMEN TROWEL MASTIC 5LT |
| Item Package Quantity | 1 |
| Item Weight | 6.12 kg |
| Item model number | 903 |
| Manufacturer | Sika Everbuild |
| Material | Iron |
| Part Number | 004952 |
| Power Source | ac |
| Product Dimensions | 18 x 18 x 23.5 cm; 6.12 kg |
| Size | 5 Litre |
R**L
Great product
Great product really good coverage and fast delivery
A**Y
Trowel applied mastic.
Excellent product, replacing the felt on my garage roof the mastic worked better than the roof felt adhesive.
K**2
Good value
Not used it yet. But, I'm sure it'll do the job. Good value, arrived quickly. Only one criticism. Maybe stronger packaging required (or more careful courier). Pretty heavy, the bottom of the tin is bulging out from a drop. Fortunately, it's not split, so it doesn't really matter, but could have been messy.
A**R
Decent product.
Easy to use and looks like it will last a few years.
S**Y
Old school stuff
This stuff is great , messy to apply but seals and is flexible. Back to basics
J**N
Thank you.
No problems.
G**E
Job done
Very good product
L**J
Does what it says on the tin
Needed to seal the concrete fillet in my garage as I was getting water leaking in .Replaced the fillet with fresh concrete but water was still when heavy rainfall expected permeates through. Trowelled on Black Jack covering the fillet round the edge of the garage lapping above on to the EAL by around 10mm and onto the floor by around same . It rained not long after application but not heavily so the surface had not cured to a skin. We have subsequently had some very heavy driving rain onto the side of the garage . Result a very water tight and dry garage . It has done a first class water tight job for me . Afterwards just clean up tool with white spirit I would recommend the product on the basis that it did the job I wanted it to do .
J**H
décevant
décevant, , ne tient pas les intempéries, se décolle
Trustpilot
1 month ago
1 week ago