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๐ ๏ธ Seal the deal with speed and strength โ donโt let leaks hold you back!
Dowsil 791 Sealant Black is a premium one-part silicone sealant designed for professional weatherproofing. It offers excellent flexibility, rapid curing, and superior resistance to UV, temperature extremes, and moisture. Ideal for building joints and outdoor applications, it delivers a durable, black finish that blends seamlessly while meeting rigorous ISO standards.
| ASIN | B0063PXFE4 |
| Best Sellers Rank | 26,371 in DIY & Tools ( See Top 100 in DIY & Tools ) 446 in Sealers |
| Brand | Dowsil |
| Colour | Black |
| Compatible Material | Rubber |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.3 out of 5 stars 350 Reviews |
| Global Trade Identification Number | 05413278323354 |
| Included Components | 1 x tube of Dow Corning 791 in Black. |
| Item Dimensions | 50 x 50 x 235 millimetres |
| Item Form | Liquid |
| Item Type Name | External Weatherproofing Sealant |
| Item Weight | 0.37 Kilograms |
| Item dimensions L x W x H | 50 x 50 x 235 millimetres |
| Item weight | 0.37 Kilograms |
| Manufacturer | Dow Corning |
| Manufacturer Part Number | 4024907/C05 |
| Material | Silicone |
| Model Number | 4024907/C05 |
| Number of Items | 1 |
| Product Warranty | No guarentee. |
| Style | Compact |
| Style Name | Compact |
| Supported Standards | ISO 11600, ISO 9047 |
| Surface Recommendation | Roof |
| Unit Count | 310.0 millilitre |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |
E**S
Would recommend
Strong bond very strong not watery like other reviews said perfect for letting me watertight seal boats and bait boats flex able but no tare
R**.
Quality sealant - A1
I bought this for a seal i needed around a black wooden outdoor unit, where I had some gaps from a pipe I had going through it. It sealed easily and was black to match the unit etc. Went off fairly fast and has remained ever since doing its job - Sealing. Cheap, easy to use and very effective. A1 Product
B**R
Black, easy to apply, can be messy
The price is good and delivery was quick. The sealant tube is as easy to use as any other sealant tube (though you'll need to provide your own nozzle). Adhesion is good but not great, so you can get some stray blobs, and with the black dye those blobs can soon make your clothes a mess... be careful out there!
D**K
It seals.
What can one say about a tube of sealant? Does it seal? Yes.
D**L
Hard to use but works well.
Along with most of the 791 range the sealant is very thin, for myself a novice who does sealant work a few times of year this was very difficult to work with, and hard to get a good bead. It does however have a very long working time at the expense of taking a long time to skin and cure. The last joint, only a 5/6mm bead, is still not fully cured after 48 hours. The final finish is good, flexible, but taping any porous or textures surfaces is a must, and being extra careful to not touch it for a few days is essential to a good finish.
D**Y
Great
This is great stuff I've never heard or seen this product before i needed something for outside and the internet recommended this. I have a black outdoor junction box that was leaking in the seal originally used was coming away from the wall ideally needed to replace the box but i have that weird pebbledash insulation stuff so a nightmare to screw into hence why i got this product to seal the back of the box onto the wall and a coat around the front cap to seal it from water.
K**E
Looks like this will work
Very sticky, need to let it go off to try and clean any off, so far so good
T**I
.
Good deal thanks
P**T
Almost expired sealant!
Not happy that I was delivered a sealant that is two weeks away from it's expiry date!
Trustpilot
1 week ago
1 month ago