Hemway Anthracite Grey Construction Sealant & Adhesive 300ml - 3 Pack | All-In-One Hybrid Polymer, Superior to Silicone Sealant, Waterproof, Odourless, Anti-Mould, Paintable, for Indoor & Outdoor

Plugged the hole i needed it for. Waterproof and hasnt leaked so i assume its good quality and durable. Straightforward to use simply insert into silicone gun and snip the end off. Colour is indeed jetblack.

Excellent product

The sealant performed well in joining a flexible perforated 100mm drain to a soil pipe. One application with no leakage. Washes off hands or clothing immediately after use if spilt. Like others have noted the use by date was only 2 months after purchase.

Great product with smart end result. Love the colour

Really good product, I used it on my block paving drive to seal the edges

I'm sure this sealant works - but getting it out of the tube is an issue ! The stock was manufactured in March 2024 and may therefore be a bit old, but even with the nozzle cut to give a thick bead I had to use both hands on the steel dispenses to get anything out. I will try it with my cordless caulking gun to see if that can extract it without bursting the tube. Disappointing.

Easy to use, goes on great and drys quite quickly.

This product advertises itself as sealant / adhesive. Having now used it I can explain the difference from normal silicone sealant. It takes longer to set. It is less flexible when set. It is definitely an adhesive. It takes significant force to cut and remove. It binds tightly.

Resealable tip is very pleasing and the tube itself high quality. I pumped countless tubes of caulking. The "Hybrid Polymer" proclamation was new to me. Everybody wants to be unique. This is polyurethane, not silicone. Like silicone, it comes in a plastic tube and pumps out with a high sheen, but its similarities to silicone end there. This caulking is like any other high quality polyurethane based caulk. It is sticky and does not like to be worked. It is not overboard like a butyl caulk. Have paint thinner ready if you can't make any mess. It compresses and eventually drips from a drip-free caulking gun. Overall, I am happy.

Worked fantastic, used for gluing together flowers made from upcycled glass and dishes. Held all pieces together thru rain and high humidity. Have not tested thru the winter months yet. Live that it dries clear and easy to apply. Let dry indoors for 48 hours before hanging outside.

This product did better than expected.

Just put it in my chicken coop. So far it’s great! I’ll update if it doesn’t hold up but I foresee it lasting. Also painted over it and it was seamless. I actually really like the grey colored one because it’s way easier to work with and see.

Très efficace