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Wesil MA
Binder system for mineral wool fibers
Wesil MA is a complete floccing and bonding system developed specifically for mineral wool fibers. Wesil MA contains colloidal alumina, aluminosilicate binder, and a fibrous high alumina filler that form strong bonds with mineral wool giving it high temperature performance nearing that of conventional aluminosilicate fibers.

Wesil MA offers these advantages

Strong Mineral Wool Bonds - Consistently forms strong bonds yielding hard, strong mineral wool boards and shapes.
Better Fired Strength - More inorganic binder creates better fired strength
More Uniform Product - Master batching creates more consistent binder ratios and enhanced product integrity.
Reduces Fluxing and Shrinkage - Alumina coating of mineral wool fibers maintains their integrity at high temperatures, allowing for successful operation at temperatures several hundred degrees higher than normal..
No Cristobalite - Completely cristobalite free at use temperature eliminating a common source of thermal shrinkage problems and health related concerns.
Typical Physical Properties

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Color Beige
Consistency Medium density dry powder
Approximate Bulk Density (pcf) 30
Loss on Ignition* 4 – 5% (water of hydration)
Fusion Point (Inorganic Binder) 2900oF
Toxicity Non-toxic. Do not breathe dust. See MSDS.
Packaging Fiber drums, 500 lbs net; cartons, 50 lbs net.
*Typical value for Wesil MA bonded fiber products.

WesBond Corporation

1135 East 7th Street

Wilmington, DE  19801

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

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