What type of varnish/finish is best to fuel proof a fight/field box?

Best Regards,
=Adrian=

I just used polyuerathane for a couple coats.......
I think it is Minwax


has lasted years

Polyurethane - I am with exeter_acres on this one. Sand first then do a wash coat with polyurethane that has been thinned quite a bit or use a sanding sealer. Then sand wiht 400-600 grit silicon carbide. Then coat with at least two nice coats if brushing, three to four if spraying and sand between coats. Stir the poly and don't shake it. Finish it off with a nice coat of wax using 800 or 1000 grit silicon carbide. You'll have a brillant finish then.

Polyurethane. I remember that I got mine from a marine supply shop. Make sure it is thinned down for easy application by brush. Two coats is good enough, with light sanding in between as mentioned.

What type of paint is best for a flight box.
I am really getting sick of seeing natural wood field boxes. UGLY

Greg

I used an Alkyd Enamel on mine and it has been 100% fuel proof for 5 years now. Even under the fuel jug, the paint is like new.

I used Rustleum with Minwax PU as a clear coat just to make sure it was super fuel proof. But under the fuel jug I evidently had to put a coating of thinned epoxy as the paint finally softened up and made a mess. Mine has held up well for 6 years.

Wood ugly?, funny I coated mine with Minwax Poly because everybody has the three same colors of field boxes.

painting over the natural beauty of wood.....shameful

You don't have to paint it all the same color.
How about something that matches your favorite bird?
Hey guys, got to get creative.

Greg

After going through 3 wood field boxes painted with fuel proof paint in 15 years, I bought a Byron Fuels one made of a hard blue "plastic". No painting, love it!

I have had the same wooden field box for 17 years and polyurethaned it as described above and have never refinished it. Have spilled lots of fuel on it over the years and not one soft spot or any finish coming off...

Isn't there two types of polyurethane? Water-based and Oil-Based?

I have seen what some companies refer to as water based polyurethane, but by nature the true polyurethane could not be a true water base. The chemical make up would have ot be altered all together, thereby changing the very quality of polyurethane that it was designed for in the first place. In other words stick with the oil based stuff for good finish and protection.