BYK®-CATALYST 450 is an acid catalyst for solvent-borne and aqueous paint systems. It is a solution of an amine salt of para-toluene sulfonic acid. This product accelerates the crosslinking of amino resins with resins containing hydroxyl groups. Especially low reactive melamine formaldehyde resins of HMMM-type need an accelerator to lower the curing temperature or to reduce the baking time. In comparison with pure para-toluenesulfonic acid, the product shows considerably lower viscosity increase on storage which can extend shelf life 1,5 - 3 times. The additive allows a 10 to 20°C lower baking temperature compared to other blocked para-TSA catalysts (such as those with morpholine or aminomethylpropanol).
BYK globally supplies additives in the Paint and Coatings Industry. These additives include nanotechnology-based additives, surface additives, wetting and dispersing additives, and rheology additives. BYK’s product range also includes wax and process additives, defoamers and UV absorbers, and viscosity depressants. BYK’s key brands include ANTI-TERRA®, AQUACER®, BYK®, CERACOL®, DISPERBYK®, OPTIGEL®, etc.
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