Ski Builders Forum

Akiwi wrote:I used a hot box for a 2 component clear coat, and it developed bubbles. A right p.i.t.a. Couldn't get rid of them. Ruined a good project.

exactly my point. could create more problems than that supposed to solve.

Probably you overheat it. I had something similar on one of the tests I did. PU start looks like boiling

For now I got decent results with normal eight hours lol drying. If anything will try post cure heating to accelerate full cure and that don't require anything additional to make

You can also make you're own wipe-on finish with poly-u. It dries much faster than poly-u out of the can. Try 1 part poly and 2 parts mineral spirits, stir well, use a cloth or foam brush to apply, watch for drips/runs.