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Wesolok D
More dispersible large-particle alumina for fiber bonding and rigidizing
Wesolok D alumina rigidizer is a more dispersible, larger particle size colloidal alumina than regular Wesolok. It is a powder ready for fast dispersion in water at 20 to 30% 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 D offers these advantages

Fast Dispersing — Alumina sols of 20-30% concentration can easily be prepared with minimal mixing

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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MSDS/SDS

TDS
(Fiber Bonding)

TDS
(Rigidizing)

Color White
Consistency Dry powder
pH (20% sol) 3 - 4
Average particle size (nm) 70
Concentration limit (sol)* 30%
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 D bonded fiber products.


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1135 East 7th Street

Wilmington, DE  19801

phone (302) 655-7917 fax (302) 656-7885 

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