Alright, enough procrasticating. I want to order enough POR-15 for my GTA. I figure a starter kit should be enough to cover the interior floorpan with one coat, but how much should I order for the undercarriage? I hope to do the floorpans/trunk and the axle at least. What do you guys think? How many quarts/gallons of the actual paint and of Marine Clean and Metal Ready should I order?

I may double the order and do my lil truck while I'm at it.

 

I would start with a small quanity (2 qts) should do the under body. Just remenber that Por-15 does not store well once opened. Great stuff.

 

I just did a engine bay with 1/4 - 1/2 quart. This was thined and sprayed with a gun also. and a good coat not to thin or thick.

1quart will do a engine bay and have some left over , even brushing it on. (I just sprayed it since I have all the equipment to do so) As for storing, If you put a Bag over the top then put the lid back on you wil be fine.

 

I did my underside this past winter, it took me just over a qt