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| BYK-Catalyst 450 |
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| Solution of an amine salt of para-toluene sulfonic acid (p-TSA) |
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Blocked acid catalyst for solvent-based and aqueous coating systems.
The additive accelerates the cross-linking of amino resins with resins containing hydroxyl groups.
Especially low reactive melamine formaldehyde resins of HMMM type need an accelerator to lower curing temperature or to reduce baking time.
In comparison with pure p-toluenesulfonic acid, the additive shows considerably lower viscosity increase on storage which can extend shelf life 1.5-3 times.
BYK-Catalyst 450 allows a 10 to 20'C (15-35'F) lower baking temperature compared to other blocked p-TSA catalysts (such as those with morpholine or aminomethylpropanol). |
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Amine value mgKOH/g : 10
Acid value mgKOH/g : 60
Density at 20'C in g/ml : 1.02
Non-valatile matter in % : 27
Flash point in 'C : 35
Acid content in % : 20
Solvents : Methoxypropanol/propyleneglycol/water : 64/5/3 |
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