any Bondo gurus here?

Topic: any Bondo gurus here? (Read 2079 times) previous topic - next topic

any Bondo gurus here?

March 03, 2009, 08:29:08 PM

i cant get a few dings leveled right.

i mix the bondo and hardener to where its almost a pinkish grey color, then spread it kinda thick over the area. i let it dry for about 30min, then block sand with 120 grit paper. it always leaves a very, very shallow "dip" when i rub my hand over the spot.

any Bondo gurus here?

Reply #1 – March 03, 2009, 08:51:11 PM

Don't sand with hand and paper,use a block.I let it dry for an hour (probably not necessary),but I like it thoroughly dry,then block sand,then glazing compound (when I'm happy with the bondo results).Sand it a little,check it.You can also spray a light coat of flat black on the area to look for high and low spots.Use a block,though.By the way,I don't know if anyone knew this or not,but,the Bondo brand spreaders are the color the bondo should be when mixed correctly.

any Bondo gurus here?

Reply #2 – March 03, 2009, 08:53:13 PM

how big are the dings?
Got a pic?

any Bondo gurus here?

Reply #3 – March 03, 2009, 09:00:42 PM

Vinnie, I never knew that. Thanks for the tip.

any Bondo gurus here?

Reply #4 – March 03, 2009, 09:09:15 PM

the dings are about the size of a quarter. i dont have any pics, and its dark outside right now.

ill try one more time, then say screw it. im not looking for anything show quality. i just want a good 20-footer job. :D

any Bondo gurus here?

Reply #5 – March 03, 2009, 09:13:33 PM

Even with a 20 footer,use a block.You can get them different sizes.When you're "hand sanding",the panel can feel very smooth,but your hand and fingers are rounded,so,that is what translates into the panel after sanding.By using a block sanding method,it keeps everything flat.Patience helps while sanding.Don't wet sand Bondo (said as a "just in case").

any Bondo gurus here?

Reply #6 – March 03, 2009, 09:21:36 PM

Make sure you grind the paint out of the dings first. Use polyester filler. it won't shrink. bondo and spot putty will keep shrinking for a couple of months after your done, and usually show the infamous mini "ass print" in the paint..
If you use a block and they come back, use a longer one then. and also use the guide coat like Vinnie said.

any Bondo gurus here?

Reply #7 – March 03, 2009, 09:24:01 PM

I used a polyester filler as well.I have used Bondo with good results in small areas.I wouldn't use it in a deep dent,crease,whatever.I do like glazing compound on the finished sanded Bondo to fill in any pin holes that can,and probably will, be left behind.

any Bondo gurus here?

Reply #8 – March 03, 2009, 09:31:53 PM

once you get into multiple dings and warped imperfections on a panel. You need this and a long board after you fill. I'm sure you won't need this though..

any Bondo gurus here?

Reply #9 – March 03, 2009, 09:38:05 PM

Mmmmm,good stuff......especially with a sliced banana,a little sugar,and some milk.Tasty.

any Bondo gurus here?

Reply #10 – March 03, 2009, 11:05:04 PM

what is this green stuff called that i see a lot of people use?

any Bondo gurus here?

Reply #11 – March 03, 2009, 11:08:26 PM

Quote from: 32VFoxBird;259436

what is this green stuff called that i see a lot of people use?

duraglas, its bondo mixed with fiberglass.

any Bondo gurus here?

Reply #12 – March 03, 2009, 11:22:40 PM

it's the waterproof stuff

any Bondo gurus here?

Reply #13 – March 04, 2009, 07:08:32 PM

i went back over all the spots by block sanding with a wooden block(instead of the rubber 3M one) and it very smooth. i sprayed some black paint over the area, and you cant even tell where i bondo'd at. :)

any Bondo gurus here?

Reply #14 – March 04, 2009, 07:31:54 PM

Quote from: 32VFoxBird;259549

i went back over all the spots by block sanding with a wooden block(instead of the rubber 3M one) and it very smooth. i sprayed some black paint over the area, and you cant even tell where i bondo'd at. :)

Black paint.... Hmmmm.....

That blue would look awesome with black