Minwax Polycrylic is NOT polyurethane and is NOT fuelproof. Even the name denotes "acrylic", not "urethane". It also is not as tough or hard as a polyurethane (either water or solvent based) and scuffs easily. I've used Polycrylic on a lot of kitchen and bath cabinets because I like the color the first coat gives to red oak, and I've tested it for fuel resistance and found it softens right up.

But there ARE waterbased polyurethanes that are tough and hold up very well to glow fuel. I made a universal engine test mount several years ago out of red oak and finished it with Flecto's waterbased Varathane. I've run many engines on that stand and have spilled a fair amount of glow fuel on it and it still looks like new. I also use Varathane on my shop shelving because it's almost as tough as a floor finish.

Again, Minwax Polycrylic is NOT polyurethane and is NOT fuelproof. There ARE waterbased polyurethanes that ARE fuelproof.

-Dave