Clears do like heat but the mixture usually accounts for the right temp. Some paints/clears recommend extra heat. It's obviously too late now but safety is also one thing to keep in mind for next time. Any open flame or heat source that is not made for this application can be very dangerous. These paints are extremely flammable and can cause an explosion from the fumes. Exhaust fans are also a concern as there can be a small but deadly spark especially when turning on or off. They make special fans for painting that eliminate this danger. And isocynates in the base coat/clear coat systems are very bad to breath. A "fresh air" system is recommended, not just a resperator. There is no filter that is rated for isocynates,that I know of, for resperators. I don't mean to preach or go on about this stuff but there is much more to painting than the average person knows.

'52 3100 "once a Marine, always a Marine!!