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Wesolok Q
More dispersible large-particle alumina
Wesolok Q alumina rigidizer is a more dispersible, larger particle size colloidal alumina than regular Wesolok. It is a dust-free powder ready for fast dispersion in water at up to 23% concentration to give stable colloidal alumina sols for rigidizing fiber shapes that are more refractory and safer to use than colloidal silicas, with less migration.

Wesolok Q offers these advantages

Fast Dispersing - Stable alumina sols of up to 23% concentration can easily be prepared with minimal mixing. and no added acid needed.
Withstands Higher Temperatures - High purity alumina provides for low reactivity and can be used to replace colloidal silica where greater refractoriness at use temperatures is required.
Rapid, Deeper Absorption - The larger particle size, with its lower surface change and viscosity, absorbs rapidly and deeply for through rigidizing.
No Cristobalite - Completely cristobalite free at use temperature, eliminating a common source of thermal shrinkage and health-related concerns.
Typical Physical Properties

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Color White
Consistency Dry powder
pH (20% sol) 3 - 4
Average particle size (nm) 70
Concentration limit (sol)* 23%
Loss on Ignition** 7—8%
Toxicity Non-toxic. Do not breathe dust. Dispersions are mildly acidic. Protect eyes from splashes. See SDS
Packaging Fiber drums, 400 lbs net, loose or 20 lb bags; cartons, 60 lbs net.
*Higher concentrations form thixotropic gels on standing
**Typical value for Wesolok Q bonded fiber products.

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