View Full Version : another interior paint question
02-18-2007, 10:45 AM
can you use bondo or fiberglass to smooth out interior pieces instead of sanding them smooth?
02-19-2007, 09:24 AM
yes, i have a 1985 k-10, and the dash had all kinds of cracks in it. i just got some filler puddy and filled on the cracks and sanded it smooth. i then covered it with felt to give it a better appearance, but you can do whatever you want to with it.
02-19-2007, 09:26 AM
Use a thick layer-building primer. I think I remember someone saying thats a better way to do it, because the bondo doesn't want to stick to the plastic.
02-19-2007, 12:38 PM
that is correct.... bondo and fiberglass will not stick to plastic. yes someone will then come here and say it will stick to plastic when infact it wont. ive tried many methods of fixing plastics on wrecked bikes and it doesnt work. plastic weld and jb weld work good for fillin the cracks as you can sand them when your done.
02-19-2007, 03:09 PM
Here's a good tutorial:
sand the plastics with 180 on a DA or 220 by hand. you dont have to sand all the texture off.
spray an adhesion promotor over the plastics and use a high build primer. block out the primer and reprime if necessary. then paint.
some of my plastics sanded:
i might write up a tech article about smoothing and painting plastics and have it put as a sticky here on the forum. i'll ask matty about it.
02-19-2007, 03:38 PM
Thats pretty sick man.:smokin:
what did you do to the padding around the instrument cluster to get it like that? Is it still soft or did you build it up with fiberglass or something?
i did the process above except i put a flex additive in each thing i sprayed on it.
02-20-2007, 02:17 PM
thanks,i'll post pics when i'm done
btw sanding sucks!!!!!!
03-15-2007, 08:06 PM
I was told there was no need to prime? Just scuff and use dupont adhessive then paint? Any of this true
03-16-2007, 06:47 AM
I wouldn't paint without primer. Are u going for the smooth look or textured? For smooth sand, flex agent, prime, guide coat, paint.
03-16-2007, 11:06 AM
I am wanting smooth as smooth can get, what kind of primer?
03-17-2007, 10:50 AM
polyester primer is the route I'd go. It sprays and builds real thick. Just make sure to use adhesion promoter before spraying.
03-17-2007, 08:53 PM
i did the process above except i put a flex additive in each thing i sprayed on it.did you add the flex to all the parts are just the soft ones. and what are those seats out of
flex was added to the rubber part around the gauge cluster. the rest of the pieces dont move and i got them in place with minimal movement. i've heard most people recommend it on all plastic applications, but i'd really only do it on most flexible plastics. not on rigid ones.
i'm with beyond static with the primer. a good polyester primer is a great help in doing this. BUT, remember you still need to sand down the texture some, and also spray an adhesion promotor BEFORE anything. a through cleaning is needed too if you boys use armor all.
03-17-2007, 09:12 PM
thanks i just got done takin the hole interior out of an 89 donor truck that i got. i thought i would start with it so i dont have to tare my truck down to do it. that way also with all the parts are paint its amatter of just pulling the old ones out and puting the new ones in. now if i could just decide on what color
thats what i did. all the pieces i painted were from the 88 project truck interior. i just did the 'ol swap-a-roo. be careful when you do the dash if its a different year model. GM has 3 different plugs i think for the gauge cluster. i know it was different from the 93 for the 88 dash i put in. just FYI:D nothing an air saw cant fix though:D
03-17-2007, 09:53 PM
both trucks are the same yr
03-18-2007, 08:12 AM
I'll have a few pics up later of how mine came out. I DA'd the dash with 80 grit, and stripped the rubber crap off of the trim pieces, and got them looking good with fiberglass. I have everything ready but the glovebox door, which is giving me hell.
03-18-2007, 11:15 AM
I dunno why everyone makes it so complicated... I took the door handle bezel and window button bezels off my 98 and sanded them down with 150 grit paper, took about 45 min or so to do all four peices, I then gave them to my body guy to paint while he was doing some other touch up work on it, they look SWEET... I will try to get pix tommorow night. Just make sure you have some sort of flex agent.
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