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73-87 Chevy _ GMC Trucks => Body, Glass & Paint => Topic started by: hotrod24 on April 25, 2008, 06:15:55 pm

Title: cab rust
Post by: hotrod24 on April 25, 2008, 06:15:55 pm: why i was working on my bed a seen a little rust at the top of the cab is this bad

(http://i222.photobucket.com/albums/dd224/74chevy/103_0836.jpg)
Title: Re: exterior rust
Post by: VileZambonie on April 25, 2008, 07:21:09 pm: all rust is bad. Use a wire wheel to strip it down. Once you clean if it's just surface treat it and I would smooth the seam right out of the picture.
Title: Re: exterior rust
Post by: hotrod24 on April 25, 2008, 09:37:31 pm: should i use seam sealer
Title: Re: exterior rust
Post by: HAULIN IT on April 26, 2008, 09:46:12 am: Hotrod, Ditto on ALL rust is bad! The best thing for that area is to sandblast the seam. Then (assuming you don't have any holes show up) is to run masking tape (a couple layers) just where the rolled edge starts into the seam (covering the seam & the metal on the other side of the seam) & swipe body filler in the pits. Once your done with the one side of the seam, tape up the other side & do that side. When your done you will have the pits filled, but not the seam. If you don't understand my babbling, just say so. Spray with etching or epoxy primer then apply seam sealer. Lorne
Title: Re: exterior rust
Post by: hotrod24 on April 26, 2008, 10:38:35 am: ok cool what could i use insted of a sand blaster to get in the seam
Title: Re: exterior rust
Post by: 80stepsideguy on April 26, 2008, 11:16:46 am: Wire wheel brush on the end of a drill will work, but dont lewave the primer on long as primer is like a sponge it`ll absorb moistore and start rusting again..

thanks
pat
Title: Re: exterior rust
Post by: hotrod24 on April 26, 2008, 12:51:42 pm: thanks pat
Title: Re: exterior rust
Post by: hotrod24 on April 27, 2008, 09:45:24 pm: hey can i use black or clear silicone adhesive sealant on my cab for the seam
Title: Re: exterior rust
Post by: 80stepsideguy on April 27, 2008, 10:42:03 pm: Probabaly not cause when you come time to paint the cab in that groove it`ll fisheye like a dude since its silicone.

thanks
pat
Title: Re: exterior rust
Post by: hotrod24 on April 27, 2008, 11:18:04 pm: what should i use it says that i should paint before i put it on
Title: Re: exterior rust
Post by: 80stepsideguy on April 27, 2008, 11:48:50 pm: http://www.eastwoodco.com/jump.jsp?itemID=1595&itemType=PRODUCT

Best way to use this stuff is to tape off where you dont want it to go on, put it in the groove and wet your finger and rund it all the way across the groove and make sure there are no pin holes and you will be fine.

thanks
pat
Title: Re: exterior rust
Post by: HAULIN IT on April 28, 2008, 12:58:59 pm: Hotrod, If you go to an autobody supply store, they will have what you need. You want a urethane seam sealer. You will put this on after the primer, but before the paint. DO NOT use silicone sealer, paint does not stick to it. Lorne
Title: Re: exterior rust
Post by: hotrod24 on April 28, 2008, 01:18:01 pm: thanks haulin it today i was sanded on the cab and it is not that bad i just need to fill in the pits and primer and paint and some seam sealer
Title: Re: exterior rust
Post by: hotrod24 on May 06, 2008, 09:26:04 pm: hey what will masking tape do
Quote from: HAULIN IT on April 26, 2008, 09:46:12 am
Hotrod, Ditto on ALL rust is bad! The best thing for that area is to sandblast the seam. Then (assuming you don't have any holes show up) is to run masking tape (a couple layers) just where the rolled edge starts into the seam (covering the seam & the metal on the other side of the seam) & swipe body filler in the pits. Once your done with the one side of the seam, tape up the other side & do that side. When your done you will have the pits filled, but not the seam. If you don't understand my babbling, just say so. Spray with etching or epoxy primer then apply seam sealer. Lorne
Title: Re: exterior rust
Post by: Blazin on May 07, 2008, 07:38:39 am: Some guys tape off the seam, then fill it with seam sealer, then remove the tape. I just fill the seam, then use lacquer thinner on a lint free rag to remove all but whats in the seam.
Title: Re: exterior rust
Post by: HAULIN IT on May 07, 2008, 11:25:12 am: Hotrod, In this case, why I suggested the tape is so you don't fill the seam with the filler while filling the pits. If you put the tape just to the inside of the rolled edge, swipe the filler. Then do the same on the other side of the seam, you will end up with all of the pits filled, but NO body filler in the split between the two pieces of metal. Understand? And yes, I would mask off the area to be seam sealed, just to the outside of the rolled edge, run the sealer, swipe with a finger wet with solvent & unmask quickly. Hope this helps you better understand, Lorne
Title: Re: exterior rust
Post by: 78 Chevyrado on May 30, 2008, 11:29:28 pm: If you have access to a welder... On my 77 I just welded the seam, and it gave it a cleaner appearance. DO NOT use bondo, etc to fill it, it will crack in about a month or less. If you want to keep it OEM find the stuff people use on inner-bed-seams like OEM and it will be paintable.
Title: Re: exterior rust
Post by: hotrod24 on June 25, 2008, 08:55:46 pm: ok the pits on my cab some of them are not the bad so could i just use primer to fill them or filler.
Title: Re: cab rust
Post by: hotrod24 on July 01, 2008, 01:21:51 pm: oh is there a tool that i can use to make the seam nice