Amorphous synthetic silica gels are the product of choice for matting/flatting high performance coil formulations eg as used for building/construction applications and domestic appliances. The PQ Corporation Gasil series of matting/flatting silicas offers cost effectiveness, good dispersibility and minimal effect upon coating durability.
Where acid catalysed systems are used, low pH Gasil silicas ensure that no retardation of the cure takes place. By selecting the correct Gasil silica, one can reduce the sheen/gloss ratio, an important consideration in coil clad buildings where consistency of view is important.
Coatings containing our silicas subjected to Florida exposure tests have demonstrated excellent weathering. This reflects the high purity of synthetic silica gel, an important factor in warrantly coatings.
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if you would like information on the optimum Gasil grades for your individual needs.