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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1 Quart 100% Pure Fumed Silica Powder, Advanced Thickener for Epoxy, Paints, Varnishes, Professional Fumed Silica for Filling Cracks and Voids, Worked Well for Ceramic Blanket Rigidizer - by TITGGI

1 Quart 100% Pure Fumed Silica Powder, Advanced Thickener for Epoxy, Paints, Varnishes, Professional Fumed Silica for Filling Cracks and Voids, Worked Well for Ceramic Blanket Rigidizer - by TITGGI

Product ID: 417422864

Details

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

🔥High temperature resistance

⚖️200 m²/g surface area

🛠️Non-sagging viscosity boost

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€ 27.68

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Description

⚡ Elevate your craft with TITGGI’s powerhouse thickener—where precision meets performance!

HEAT RESISTANT ADHESION - Maintains stability and strength even under high temperatures for durable repairs and coatings
PRO GRADE PURITY VALUE - 100% pure fumed silica powder delivering industrial-grade performance at an unbeatable price and quantity
MULTI PROJECT VERSATILITY - Perfect for resin art, ceramic blanket rigidifying, rubber reinforcement, and crack filling—one powder, endless possibilities
ULTRA FINE SURFACE MASTERY - 200 m²/g specific surface area for superior dispersion and smooth consistency
EFFORTLESS THICKENING POWER - Transforms epoxy, paints, and varnishes into non-sagging, easy-to-work-with formulas with just hand stirring

TITGGI’s 1 Quart 100% Pure Fumed Silica Powder is a professional-grade, hydrophilic thickener with a massive 200 m²/g surface area, designed to enhance viscosity and create non-sagging properties in epoxy, paints, and varnishes. Its high temperature resistance and strong adhesive qualities make it ideal for filling cracks, reinforcing rubber, and rigidifying ceramic blankets. Lightweight and easy to mix by hand, this industrial-grade powder offers exceptional value and versatility for artists, builders, and professionals seeking flawless finishes and durable results.

Specifications

ASIN	B09JSKQZL4
Best Sellers Rank	#32,830 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Household Paint Additives
Brand	TITGGI
Brand Name	TITGGI
Color	White
Customer Reviews	4.4 out of 5 stars 290 Reviews
Grade Rating	Industrial
Included Components	1
Item Form	Powder
Item Weight	0.15 Kilograms
Manufacturer	Evonik Corporation
Material	Fumed Silica Powder
Number of Items	1
Part Number	A200
UPC	669936845569
Unit Count	31.99 Fluid Ounces

Reviews

R**K

10.12.2023

D**Z

12.10.2022

J**E

12.05.2025

K**R

14.08.2022

R**S

27.12.2025

L**L

16.03.2023

P**R

3.05.2025

J**N

23.07.2025

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In stock

Sold byAmazon ItalyDelivered 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 Italy.

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