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Megasol® S50
Silica binder for refractory fibers
Megasol®S50 is the optimal colloidal silica for bonding and rigidizing of refractory fiber shapes and boards. Megasol®S50’s unique physical properties result in higher packing densities and stronger bonds. With approximately one third the surface area of commonly used binders, Megasol®S50 requires less cationic starch to floc and yields higher silica content boards and shapes with better high temperature performance characteristics.

Megasol® S50 offers these advantages

Greater Product Strength - Double the dried and fired strengths than other commonly used colloidal silica binders.
Flexibility in Formulation - Creates stronger boards than other sols at silica to starch rations of 1:1 through 4:1.
Lower or No Smoke Products - You can use as little as 2% starch and still get excellent floccing and product strength resulting in little or no smoking at elevated use temperatures.
Less Shrinkage at High Temperatures - Larger particles and low sodium content creates less sintering and less shrinkage at 2100 - 2300oF use temperatures.
Better Rigidizing - Larger silica particles soak in farther and faster for greater hardness throughout.
Saves Money - Higher green and fired strength means you can formulate using less starch and silica, lowering material costs.

 

Typical Physical Properties

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MSDS/SDS

TDS

Color White
Consistency Milky Liquid
Specific Gravity 1.39
Particle Size, nm 70 average
Surface Area, m2/g 70 (estimated)
Silica, wt% 50
Na2O, wt% 0.22
pH @ 25oC 9.0 - 9.5
Viscosity @ 25oC, cp 15
Toxicity Non-toxic. See MSDS.
Packaging Drums, 620 lb. net; totes, 3100 lb. net, 275 gal.


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