Underbody Sealing

[Jim]

What is the best way to seal the wood and fiberglass on the underside of the body?

[Kevin Seward]

One option could spray on bed liner material and they can also color match that stuff it you want.

HiTec

[Bill Holley]

the bed liner is a great option now.. not an option 15 yrs ago, so i just painted mine same color as body.

[Bill Cleveland]

Old School (read messy) just mix up some fiberglass resin in an old paint can and brush it on. Wear your old clothes!

[Ben Griffin]

Seal with resin as Bill suggested. I'd then coat with do-it yourself roll on bed liner. You can go with the traditional black - (Autozone has a couple kinds), but if you are looking to color match or contrast, check these guys out:

http://www.monstaliner.com/forms/monstaliner_colors.htm