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🛠️ Elevate your epoxy game—thicken, strengthen, and perfect every project!
West System 406-2 Colloidal Silica is a premium epoxy thickening additive designed to control viscosity, prevent runoff on vertical and overhead surfaces, and enhance the strength and abrasion resistance of epoxy fairing compounds. It cures to a clean off-white finish, making it ideal for professional vehicle repairs and specialty applications.
| ASIN | B0000AY1OC |
| Best Sellers Rank | #21,843 in Automotive ( See Top 100 in Automotive ) #88 in Care Corrosion & Rust Inhibitors #1,015 in Oils & Fluids |
| Brand | West System |
| Brand Name | West System |
| Color | white |
| Container Type | container |
| Customer Reviews | 4.8 out of 5 stars 319 Reviews |
| Included Components | urea-resin-adhesives |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Type Name | West System 406-2 Colloidal Silica 1.7 oz |
| Manufacturer | Gougeon Brothers, Inc. |
| Material | Plastic |
| Material Type | Plastic |
| Model | 406-2 |
| Number of Pieces | 1 |
| Other Special Features of the Product | special_feature |
| Part Number | 406-2 |
| Special Feature | special_feature |
| Specific Uses For Product | specific_uses_for_product |
| UPC | 811343011482 |
| Unit Count | 1.0 Ounce |
| Volume | 1.7 Fluid Ounces |
| Warranty Description | Warranty |
G**Y
West System awesomeness
I’ve dealt with a couple of epoxy brands over the years and West System’s is by far the best all around system that includes both epoxy and fillers. These fillers are a bit pricy when you factor in the weight or volume but they work just like fillers should. I have yet to encounter any negative issues with these fillers, and they all appear to be packaged in a professional environment. The fillers come bone dry and don’t have any impurities in them.
N**E
Amazing Product
Used it to add to gelcoat during a crack repair on our boat and it is amazing. ALWAYS USE A RESPIRATOR!!! This is a very fine dust and it will damage your lungs.
J**D
Works great as an epoxy thickener
I mixed some of this colloidal silica with a 2 part epoxy glue to thicken it up. The more you add the thicker the glue mixture gets. The powder is super light, and floats everywhere, so a mask is not a bad idea. Handle it slowly and carefully.
A**L
Great product
Just sticking her really helps when I am trying to fill cavities or I need structural hold do recommend it
H**M
Very fluffy
Great stuff!! This unbelievably powdery mess mixes extremely well with resin epoxy to form a thick gel that dries into an opaque white plastic. Don't inhale this stuff, it's like powdered glass and definitely not a good thing to inhale. Eye and Ear protection required, no doubt. Wear a hockey mask and breathe through a sock.
T**B
versatile
I've used this stuff for 40 plus years. Great for patching with epoxy and polyester.
Y**S
Good to Have
Here in Hawaii, even Ace Hardware doesn't have this. Thank you for Amazon to sell this.
W**N
Worked great for fiberglass repair
This worked great as an epoxy filler in a recent project to repair and re-glass a 3 inch hole in my sailboat's cabin top. Used it for bonding mating surfaces. It was sometimes challenging to use outdoors -- the stuff is light and fluffy and will blow away in even the lightest breeze.
Trustpilot
2 months ago
2 months ago