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🛠️ Elevate your epoxy game — precision thickening for flawless, strong bonds!
WEST SYSTEM 406 Colloidal Silica is a premium USA-made epoxy thickening additive designed to control viscosity and prevent sagging on vertical or overhead surfaces. It enhances fairing compounds by improving strength and abrasion resistance, curing to a smooth, creamy off-white paste. Perfectly compatible with WEST SYSTEM epoxy resins, it allows professionals to customize epoxy handling without sacrificing cure quality or bond strength.
| ASIN | B0000AY1OC |
| Best Sellers Rank | #13,209 in Automotive ( See Top 100 in Automotive ) #50 in Care Corrosion & Rust Inhibitors #702 in Oils & Fluids |
| Brand | West System |
| Brand Name | West System |
| Color | white |
| Container Type | container |
| Customer Reviews | 4.8 out of 5 stars 327 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 Ounce |
| Volume | 1.7 fluid ounces |
| Warranty Description | Warranty |
G**G
West System 406 is a must have for epoxy work.
This stuff works great. My first epoxy fiberglass repair has gone well. The 406 silica allows you to create an epoxy filler of almost any consistency. My repair was a small home on a vertical side of a boat. Getting a couple layers thick enough to not sag was key. I found it easy to sand down with 80 grit paper and am very happy with the results.
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.
H**M
Pricey but well worth it.
This is the best and easiest product & system I have used so far.
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.
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.
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.
Y**S
Good to Have
Here in Hawaii, even Ace Hardware doesn't have this. Thank you for Amazon to sell this.
R**Y
Works well
Similar to other brand products and delivered very quickly. No complaints.
J**A
Vale la Pena.
Lo compraría nuevamente. Buen producto.
Trustpilot
1 month ago
2 weeks ago