Greetings,

I'm doing some fill coats in a few small areas (scarf joints that were not perfectly level) before I varnish. If I use straight fast hardner and apply the next coat as soon as the first is no longer tacky but still very green, is there a worry about blush. In building the boat I have used slow hardner or a mix of fast and slow, conditions were cool and dry for the most part and I've had no problems with amine blush at all.
Am I asking for trouble if I use fast hardner in the manner described?

Thanks,

Ken