Cabosil - Fumed Silica Thickener in Quart Tub

I used this to make ceramic blanket rigidizer. Be careful how much water you add, start with the powder and add just enough water so that it will spray. It worked pretty well as a rigidizer.

Works with epoxy and gel coat. Sands easily. Perfect for athickening agent.

Good peanut butter for my boat refurb. No problems. Also worked perfectly on the gelcoat as well. Could be at a better price...

I have I only use it once to thicken up my epoxy so it wouldn’t run as fast. It did the job.

Smaller than expected but good

I bought 2 of the containers for a rebuild of my boats hard top. It was recommended by a guy that does fiberglass work for a living. It works great by just adding some and stirring in until you get the consistency you need. The resin thickened quickly with small amounts added, keeping it from running past the intended work area. I also used a bunch to make a paste for some crack fills and it was excellent. I couldn’t detect any weakness in the filled areas either.

Bought to thicken epoxy and liquid hide glue. Worked well for both to reduce excessive squeeze out and running in complex joints. Did not affect set time.

Mixes very well with resin. Perfect for crafting and much more cost effective than other products.

Definitely good product

I use this as part of a recipe (the other part being water) to make my own rigidizer for ceramic wool. Much cheaper than buying already prepared rigidizers.