RE: Cheaper clear coating found
I have used the Minwax Polycrylic. There are a couple of caveats with this.
1. Let the poly dry/cure A MINIMUM of one week before exposing to glow fuel.
2. DO NOT LET THE ENGINE RESIDUE REMAIN ON THE PLANE/FINISH OVER 4 HOURS !!
After about 4 hours, the residue will soften the polycrylic.