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Wesil CS
Complete binder system for vacuum forming fibers
Wesil CS is a complete refractory fiber floccing and bonding system that replaces both colloidal silica and starch, saving the extra steps of dissolving and/or cooking the starch separately. It contains a cationic cold-water swelling corn starch blended at an optimum ratio with our proprietary aluminosilicate in a dry binder. Buffers are added to maintain proper pH for maximum strength products and reduced bacteria growth for better slurry life.

Wesil CS offers these advantages

Significantly Reduced Costs — Typically reduces formula costs 30-40% below colloidal silica/starch systems.

No More Cooking Starch — Contains pre-gelled cationic starch, eliminating time-consuming extra steps.

Less Smoke and Whiter Color — Lower organic content for purer color and reduced off-gassing.

Better Fired Strength — More inorganic binder creates better fired strength.

More Uniform Product — Master batching creates more consistent binder ratios and enhanced product integrity.

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 Cream
Consistency Medium density dry powder
Approximate Bulk Density (pcf) 29
Loss on Ignition* 4 – 5% (water of hydration)
Fusion Point (Inorganic Binder) 2400°F
Toxicity Non-toxic. Mildly acidic (pH = 4.5) See MSDS.
Packaging Fiber drums, 250 lbs net; cartons, 45 lbs net.
*Typical value for Wesil CS bonded fiber products.

WesBond Corporation

1135 East 7th Street

Wilmington, DE  19801

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

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