How to use fumed silica to thicken liquid systems?

You can gradually add the right amount of fumed silica to the liquid according to the needs of the liquid, and fully stir until uniform, in order to achieve the desired viscosity thickening effect.

Does this fumed silica powder thicken well?

This fumed silica works really well, and when I use epoxy resin, I add this fumed silica powder to the epoxy resin, and the epoxy thickens a lot. But please note that you'd better wear a protective mask when adding fumed silica, as silica powder is light and small and will be blown all over, it weighs nothing.

Just want to double check... can use this to strengthen gelcoat for fiberglass?

I think it would work. I use it to strengthen smooth pour for fish heads. It’s finely ground so I’m not sure if fiberglass powder would be better for you since would be stronger.

Does this fumed hydrophobic silica have insecticidal properties in a damp environment superior to diatomaceous earth?

They are very different things. I can't imagine Fumed Silica is as abrasive as diatomaceous earth, and that is what diatomaceous earth does to the exoskeleton of an insect, wear holes in it.

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TITGGI Fumed Silica Thickener for Wood Filler and Coatings 1 Quart (946 mL)

Product ID: 417422864

Details

Brand
TITGGI
Color
White
Item Form
Powder
Item Weight
0.15 kg
Material
Fumed Silica

🎯Customizable viscosity control

🧪Hydrophilic fumed silica tech

⚖️946 mL precise volume

€ 47.00

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Description

🎨 Master your epoxy flow like a pro—thick, control, and conquer!

TAILORED CONSISTENCY - Easily adjust from light thickening to paste-like textures, giving you ultimate control over coating, filling, and finishing.
MINIMIZED MATERIAL WASTE - Gradual addition and testing prevent over-thickening, optimizing your resin use and project quality.
PRECISION VOLUME CONTROL - A full quart (946 mL) ensures you have the perfect amount for your project without waste.
ADVANCED RHEOLOGY MODIFIER - Hydrophilic fumed silica expertly thickens epoxy for superior flow and sag control in vertical and overhead applications.
LIGHTWEIGHT EASY TO HANDLE - Despite its volume, the fine powder is ultra-lightweight, reducing fatigue and simplifying mixing.

TITGGI Fumed Silica Thickener is a 946 mL industrial-grade hydrophilic powder designed to precisely modify the viscosity of epoxy resins and coatings. It enables superior control over flow and sag, ideal for vertical and overhead applications, with adjustable consistency from light thickening to paste-like textures. Lightweight and easy to handle, it helps professionals achieve flawless finishes in gel coat, fiberglass, marine, and gap-filling projects.

Specifications

ASIN	B09JSKQZL4
Best Sellers Rank	#114,326 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #42 in Household Paint Additives
Brand Name	TITGGI
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (318)
Grade Rating	Industrial
Included Components	Fumed Silica Powder
Item Form	Powder
Item Highlight	Rheology Modifier for Viscosity and Flow Control, Gel Coat, Fiberglass, Paint and Varnish, Wood Filler
Item Weight	0.15 kg
Manufacturer	Evonik Corporation
Material	Fumed Silica Powder
Number of Items	1
Number of Packs	1
Part Number	A200
UPC	669936845569
Unit Count	31.99 Fluid Ounces

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TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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€ 47.00

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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