








🔧 Seal smart, seal strong—your go-to pro-grade caulking solution!
Sikaflex 1a is a premium one-component polyurethane sealant designed for flexible, weather-resistant sealing on vertical and horizontal concrete and masonry surfaces. The kit includes the versatile AWF PRO caulking gun with an 18:1 thrust ratio, compatible with both 20 oz sausage packs and 10 oz cartridges. It bonds primerless, applies on damp surfaces, and cures with ±35% movement capability, making it perfect for precise, durable sealing in construction and renovation projects.
B**Y
Great
came next day
S**S
Sikaflex 1a
This stuff is great and easy to work with. I'd even go as far to say it is an esoteric product contractors don't want you to know about. I'm using it to seal up a brick basement wall.
D**N
Bus. owner
Good Products.
J**D
Amazing stuff!
I did a lot of research trying to find something to REALLY seal the gap (Some 1+ inches) between concrete slabs and our block foundation. This IS the stuff! I don't know what the fuss is about the gun, It work great for me. I went through 8 sausages without even a hiccup from the gun. It's a solid sausage gun and does exactly what it's meant to do.This stuff flows so nice. You just have to find your rhythm as far as pulling the trigger.I ordered bigger tips as in one area I needed a bead of over an inch. I used backing rod where needed. The product goes fast at that size, but it did exactly what I needed it to do. I put sand over it as it went down to help blend in. Just sweep it up the next day.I 3D printed the size finish tools I needed. With the extra from finishing, I just laid it down with a putty knife before using the gun over the same area. I had very little waste.I have this product saved in my list for easy reference in the future. IT WORKS!
J**N
Great deal works as it should
Great product for masonry. Works well.
J**T
The caulk was great but the gun didn't work well
The caulk was great but the gun didn't work well It was clunky and I had to fight with it and would not put down a even caulk spread. I have used this typ of gun many times in the past
G**G
Great product for Expansion gap around swimming pool
Can’t say enough good things about this product for repairing cracks and concrete and redoing the expansion joint around my swimming pool it matched perfectly. Just go slow and steady it self leveling take your time and you will like the finished product.
D**L
Used this before and worked well
Seems like a very good product and easy to work with. Time only will tell the quality of the product
Trustpilot
2 months ago
3 weeks ago