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Cabosil Fumed Silica (4oz Jar) - Resin Thickener for Non-Saggy Putty - Advanced Epoxy Resin Thickener - Professional Thixotropic Agent for Smooth Epoxy

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$6.89

$ 2 .99 $2.99

In Stock

About this item

  • Optimal Solution: Fiberglass Supply Depot Inc.’s colloidal silica is a must-have product for those of you who want to work with smooth, non-saggy epoxy resin. This product acts as a premium thixotropic agent that allows you to control the viscosity of mixed epoxy systems.
  • Easy to Use: This epoxy thickener is designed to be used alone for a smooth and non-sagging high-strength mixture. Additionally, it can also be combined with fillers or fibers to prevent them from sagging.
  • Designed for Resin: This fumed silica is formulated to provide sag resistance, as well as anti-settling and anti-corrosive performance. Our colloidal silica ensures high shelf stability and mechanical reinforcement in epoxy coatings.
  • Small Size: Our fumed silica comes in a 4oz package and can be mixed with other fillers to create custom blends. Cabosil can be added to any type of resin mix and simply stirred by hand.
  • Technical Features: This Cabosil filler may be synthesized by high temperature hydrolysis of SiCl4 in O2(N2)/H2 flame. The formula is amorphous and it possesses a very high specific area. The microdroplets of amorphous silica fuse into a branch and form a chain-like agglomerate, which helps to thicken the resin mixture.



Product Description

CABOSIL FUMED SILICA
cabosil frame 4
cabosil frame 3
cabosil frame2
cabosil frame 5

CaZondra Robinson
Reviewed in the United States on March 9, 2025
Very clumpy. I will go back to my usual. This is very messy, almost like baking soda when it gets moist. I had to break it up to use it.
Sarah
Reviewed in the United States on February 25, 2025
Excellent quality
Ella
Reviewed in the United States on February 13, 2025
I wanted to make a hydrophobic immersion but it was not hydrophobic at all. if you’re using it for resin it might be fine idk but it didn’t work for my purposes (not resin). I returned it
Georgina Cooper
Reviewed in the United States on February 10, 2025
If you read the description carefully it says “4 oz. Package” - however NOTE you only receive a little over 1 oz. of product in weight. Deliberately misleading. I was ordering this to try the product before ordering a significantly larger quantity but this leaves a bad taste.
B. Howd
Reviewed in the United States on August 20, 2024
Used it to thicken epoxy for epoxy drip tumbler. Loved it
Katherine Harris
Reviewed in the United States on June 24, 2024
I wish I could give it 6 stars
Chaz
Reviewed in the United States on March 17, 2024
I use this for bedding gun stocks. JB weld is one of the strongest epoxies but it is a little thin and slowly runs. Mixing a little of this makes it thicker so it will stick to a horizontal surface and never run down.
Chad
Reviewed in the United States on November 5, 2024
I ordered 4 oz of Cab-o-sil. (Fumed silica). I received the tiny container in which the silica plus the weight of the container, is 1.1 Oz. I thought the price was reasonable for 4 oz of silica. But totally outrageous for 1 oz.
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