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Fiberglass Supply Depot

Fiberglass Supply Depot Cabosil Fumed Silica (Quarter Pint Jar) - Resin Thickener for Non-Saggy Putty - Advanced Epoxy Resin Thickener - Professional Thixotropic Agent for Smooth Epoxy

✅ In stock ⭐ Lowest price we've tracked
F
Grade
💤 Not a Deal
24/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$6.89
Listed $6.89
Analysis Confidence 100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 29, 2026 6:38 AM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal
  • 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
  • 💰The current price sits right around what this item typically fetches.
  • 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 0/28
Recent Value 0/22
Market Standing 0/20
Deal Strength 20/20
Momentum 4/10

📝 Product Overview

🏪 Sold by Fiberglass Supply Depot
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

✓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.

⚙️ Specifications

Brand
Fiberglass Supply Depot
Material
Fumed Silica
Item Form
Powder
Color
WHITE
Item Package Quantity
1
Package Information
Jar
Item Volume
4 Fluid Ounces
Viscosity
High
Water Resistance Level
Water Resistant
Unit Count
4 Ounce
Viscosity Level
High
F
$6.89
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