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Colloidal Silica (fumed silica)

(Exc. 20% VAT)
(£1.80 Inc. VAT)
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This is the thixotrope which makes the resin and gelcoat non drip, thixotropic resins will have between 0.75 - 1% by weight included in the formulation and gelcoats around 2.5% .

Its not that easy to disperse this without a mechanical stirrer - it will go in if you mix it in by hand but it wont develop its full effect if not well mixed.


• HTV and RTV silicone rubber
• Adhesives and sealants • Paints, coatings and pigments
• Printing inks
• Cable compounds
• Unsaturated polyester resins, laminated resins and Gel coats Properties
• Reinforcement filler in elastomers
• Rheology and thixotropy control of liquid systems, binders, polymers, etc.
• Used as anti- settling, thickening, anti- sagging agent
• Improvement of free flow and anti- caking characteristics of powders

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