Finnishing up some exterior work, and was using the "Bondo" brand filler through till almost the end, wondering if theres something that could make the consistancy of the actual filler by itself, a little more workable, i didnt want to expiriment, so i thought id try a nother brand ( "CARGROOM" ) just to see if theres a big difference and there was but in a good way. The extra ( new ) filler i got is a little more softer and workable it flows better in the can so i figure it willbe good for the final coverings. Both of these fillers seem to work good, but i cant tell you how they will hold up over the winter, or wether putting one over the other will cause problems. So far i give both a good workability review. Cost is about the same. And Were well stocked in both places. That said if any one has some thoughts or tips, post em.


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bondo is good to start with...you can experiment with adding less or more hardener...really just changes the drying time...there is a product that you can add to make it smoother...we call it "honey" but you going to want to get "spot putty" also...the spot putty will be your final coat, this helps fill any pin holes that are left and is easier to sand.

bondo is good to start with...you can experiment with adding less or more hardener...really just changes the drying time...there is a product that you can add to make it smoother...we call it "honey" but you going to want to get "spot putty" also...the spot putty will be your final coat, this helps fill any pin holes that are left and is easier to sand.

You know i took auto body in school, so much for retaining info, do you get the "honey" from the auto body supply store? ( auto zone ), and which company have you used ? Yah i got 2 big tubes of glaze, i just get goin and pass right by that step when im just trying to get a not so important finnish done.

When I mix bondo I add alot of hardener, But you got to be real fast at spreading it and smoothing it out, and I use a soft sanding block to sand it down, then use a piece of fine grit and my hand to finish it up... Just my 2 cents...

What we use is made by a company called Marson..product name xtend...we get from our paint supplier...

When I mix bondo I add alot of hardener, But you got to be real fast at spreading it and smoothing it out, and I use a soft sanding block to sand it down, then use a piece of fine grit and my hand to finish it up... Just my 2 cents...

yah just tryin to get a feel for technique, yup to much red and you better be moving fast , or go to scoop up some more with the spreader and not only has the stuff on your card board solidified but all the waves and crests are no longer workable, and you just make things worse if you try to level it as it reaches hardening stage. I think a small amount of filler at a time works best, that way you dont have stuff hardening on you as your trying to use up what youve mixed.

Hey i hate haveing to use bondo but my roof was bad, like someone stood on it and jumped up and down, lots of dent puller action, and a resembalence to swiss cheese. Ugh make you cringe if you watched me do it., A lot of what i learned came back, i just dont do it all the time. And you forget the tricks that help. Like you cant use the same spreader over and over cause they start to ripple ( solvent warp ) and just makes filler harder to spread evenly. Windex, cleans the filler your hands better than paint thinner. Dont yank the dent puller tooo hard do it a little at a time in alot of places (reasonable amount ). Find the crease points and pullem up. Or the center wont want to stay. And dust clouds from the fine sanding. Im outside flanked on all sides , all it takes is a breeze and its a plastic winter in the summer time.

i prefer the Evercoat Rage or 3m Lightweight QBA fillers

the Bondo brand crap sucks

PBE techs say to use a golf ball size amount with a strip of hardener and it should mix to either a light blue or a salmon color (depending on what color hardener)

the 3M is a little bit espensive, but worth it, especially for the Quick Bond Adhesion, Marson is next on the price list, and a galllon of evercoat is dirt cheap..

oh and bondo filler should'nt be used for holes, i recommend either fiberglass resin and mat/cloth or the fiberglass fillers. Short strand for small stuff and long strand (which is a pain the neck to use) for bigger problems.

i like using body filler, idk why. a tip, you can mix more or less hardner for faster or slower drying times, so you can have more time to work with it. dont do this overboard though. if you dont add enought it will stay gummy forever, and to much makes it brittle

too much hardener can also cause bleed back after its painted. rage is a good filler thats what i use on everything i do on the side.

Too much hardener will also make the bondo crack after it's been applied.

Hey i hate haveing to use bondo but my roof was bad, like someone stood on it and jumped up and down, lots of dent puller action, and a resembalence to swiss cheese.

Uh,...not the exposure i needed, camera cant handle the sun. But the point is the roof looks much better after some drillin, pullin, sandin, paintin.

http://www.supermotors.net/getfile/426590/fullsize/f250roof-01p.jpg