I'm doing Durabak on my CJ7.. I was wondering if anyone knew how much it would take. I've searched the web and Pirate4x4 and found plenty, but no one mentions how much they used..

I'm figuring two gallons in all..

This is going to be done after the tub is professionally blasted and primered, so I won't have to worry about prep and should get it to bond very well.... I'll be rolling it on myself.

I was thinking about two colors, with the interior the rough texture (dark grey) and the exterior the smoother texture (dark blue) but wondered if one gallon will do the exterior. I don't want to run out of one color and have extra of another color and then need to order more when I could have gone with a single color and saved some pennies.. decisions, decisions..

In my experience with roll on bed liner. Don't roll over paint even if it is just Primer. Roll on bed liner works best on a roughed up surface with little or no paint. it'll chip if not prepped properly where the paint or primer looses its hold on the underlying steel.

Rough up the surface after its been stripped (blasted as you said) with scotch brite pad or something of the like.Then get to rolling on the bed liner you'll be happier in the long run. If I were you I'd go with the 2gallon for interior and 2 gallon for exterior its better to have to much than not enough. When I was done with my Bronco on the interior, I went over the high traffic areas wehre your feet are or where tools or chains and such will be laying. For the most part it's held up just fine so far.

Hmm... so it seems that maybe I should roll it on right after the blasting and skip the primer, huh.... that would save a little on the primer part of the job.

How long between blasting and putting the Durabak on do ya think? I guess it depends on the weather too...

I used 2 gallons on the inside of my fj40.(similar in size) And it came out nice and thick. Also what "das_jeepinator" said, put it right over your sandblasted tub and it will stick much better than over sanded paint. Just take your time on the prep work and it will make the end result that much better.

I used a gallon on the bottom.. I figure I'll use a gallon on the interior and another gallon on the exterior.

The exterior (and bottom) will be dark blue, the interior will be dark gray..

I'll probably paint the roll bar a semi-flat black as well as the dash..

I don't have pics of the durabak up yet, but i have pics of some of the other steps leading up to the durabak..

http://community.webshots.com/user/chief78cj7

Originally posted by Chief78CJ7
How long between blasting and putting the Durabak on do ya think? I guess it depends on the weather too...

As soon as possible. Keep the bare steel from flash rusting. Make sure and follow the prep directions about using a solvent to clean the metal, even if you are blasting first.

No bare metal.. that is why the sandblaster sprayed it with primer after he was done..

My dark grey Durabak showed up last night.. so I finished up the interior prep work. I use steel wool over the primer just to knock off anything clinging on, etc.. then I blasted it with the compressed air and vaccumed everything up.

The Durabak going over the primer is MUCH better than trying to get Durabak or some other treatment over bare metal... I have a day job, so taking it from the sandblasters shop to my shop to be painted within hours isn't reasonable--a guy has to have a job to support this stuff.. !

THe real trick is to have a dirt-free, grease/oil-free, flaky-free surface.... for any top coat.

I have a gallon of dark gray as pictured... I thought primer was required in the instructions??

When I ordered they said one gallon would do the interior with 2 coats as pictured. ( not my pic btw) . I sent this pic to them for estimate on quantity. You think I will be short. ??

I used 1 gallon of herculiner on my interior. It has held up well after a year, but I prepped with xylene the proper solvent for that liner. I'm going to spray another gallon in there because it just isn't very thick.

one gallon was just the right amount for me too, on the interior. I would think that might be stretching it a bit on the exterior though.

I'm headed home from work right now to do the interior... I'll use a whole gallon on it.

On the exterior, there isn't really much surface area, except the hood.. I'm going to do the exterior of the tub, hood, fenders, etc.. and wait to do the underside of the hood until I know I'll have enough. I may find myself buying another quart I suppose.. but we'll see.

I did the entire underside and firewall with one gallon. I couldn't do two entire coats, but I think that's because I used a brush for the most part with all the little nooks and crannys there are. I had probably 1/4-1/3 of a gallon left after the first coat. I used the rest as a second coat and got all the areas that I hadn't gotten thick on the first coat.

The Durabak boys said this works awsome for application that looks factory..

http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=43761

Just need plenty of CFM

does that gun have a thick enough inlet and nozzel to spray bedliner?

if so i can afford $7....i thought they would be hellaciously expensive...

the tip is open .. I have use them for drywall texture and they work great. They are made for undercoating so I think you will be fine. The durabak instructions say to thin with xylol for spray.
You will end up needing around 10 CFM