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VW Posted hell of a lot Posts: 6,000	Bodywork stopper VW @vw
	Nov 13, 2020 19:16:21 GMT Select Post Deselect Post Link to Post Back to Top
	Currently prepping for paint. There are lots of rust pits on the metal (all rust has been removed). I have so far epoxy primed, flatted, filled the worst areas and given it a coat of high build (it's not very high build though!) I'm going to flat this down again and 're prime but I can tell I'd have to repeat this many times before I'd loose all the pitting. Its an old motorcycle so the parts are small and intricate so it's not as easy as just filling everything. I also don't really want to build up a high thickness of paint so I'm sanding back as much as possible before 're coating. Not really a suitable situation for a good heavy coat of polyester or similar. I suddenly thought this may ve a good case for using some stopper, but I've not used it before. Does it still need priming over? I'm sure I've read you can top coat over stopper. I did once have a tube of Halfords stopper I had used for something unrelated, it didn't seem very nice and never seemed to set very well. Has anyone got any advice on stopper, or any other thoughts on dealing with the rust pitting? If it was a car, this wouldn't be a problem. But I have about 50 small intricate parts to prep, all with varying degrees of heavy pitting. Thanks.


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comfortablynumb Posted a lot Posts: 3,068	Bodywork stopper comfortablynumb @comfortablynumb
	Nov 14, 2020 7:30:00 GMT Select Post Deselect Post Link to Post Back to Top
	Same here, every time I’ve tried it it’s never set and I’ve had to dig it out and start again, I’d be interested to know what I’m doing wrong too?


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droopsnoot Posted a lot Posts: 1,438	Bodywork stopper droopsnoot @droopsnoot
	Nov 14, 2020 8:46:38 GMT Select Post Deselect Post Link to Post Back to Top
	I used some stopper in parts of my previous project, I didn't have any trouble with it not going off. I could see that there might be a problem if it were put on to fill bigger areas than it's intended for - as it's a single-pack product (i.e. no separate catalyst) I presume that means it needs air to set, so perhaps if it's too deep then it gets no air and doesn't set.
	www.firenza.net - my homage to a 1970s Vauxhall

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vitesseefi South West Posts: 2,243	Bodywork stopper vitesseefi @vitesseefi
	Nov 14, 2020 9:48:07 GMT Select Post Deselect Post Link to Post Back to Top
	You need Dolphin Glaze. 2 pack stopper, so doesn’t shrink like the traditional cellulose stuff. www.u-pol.com/us/en/product/dolphin/fillers-putties/putties-and-glazes-2/dolphin-glaze#.X6-nsxbfXDs Great product. Nick
	1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)

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VW Posted hell of a lot Posts: 6,000	Bodywork stopper VW @vw
	Nov 14, 2020 9:56:55 GMT Select Post Deselect Post Link to Post Back to Top
	Nov 14, 2020 9:48:07 GMT vitesseefi said: You need Dolphin Glaze. 2 pack stopper, so doesn’t shrink like the traditional cellulose stuff. www.u-pol.com/us/en/product/dolphin/fillers-putties/putties-and-glazes-2/dolphin-glaze#.X6-nsxbfXDs Great product. Nick I've seen this used loads, and have had a small play with it myself, but it's not going to be ideal in my situation. I can't spread a whole area. For me to use this I'd have to mix up tiny amounts and use it to fill the individual pits. The pieces I'm working on are too small and awkward to be giving a layer of filler. Dolphin glaze seems to be used more as a final levelling coat for areas of bodywork. Even used like that though it would probably be better than stopper, or trying to use regular body filler on small imperfections. Mixing tiny amounts isn't really practical though. I'm wondering about maybe using some more epoxy primer, or spray filler, and using a small brush to put drops in the pits.
	Last Edit: Nov 14, 2020 10:03:18 GMT by VW

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vitesseefi South West Posts: 2,243	Bodywork stopper vitesseefi @vitesseefi
	Nov 14, 2020 10:01:57 GMT Select Post Deselect Post Link to Post Back to Top
	Milliput? www.milliput.com/ Nick
	1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)

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VW Posted hell of a lot Posts: 6,000	Bodywork stopper VW @vw
	Nov 14, 2020 10:04:05 GMT Select Post Deselect Post Link to Post Back to Top
	Nov 14, 2020 10:01:57 GMT vitesseefi said: Milliput? www.milliput.com/ Nick May work. I'll look into it. I edited my above post too.


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vitesseefi South West Posts: 2,243	Bodywork stopper vitesseefi @vitesseefi
	Nov 14, 2020 13:07:30 GMT Select Post Deselect Post Link to Post Back to Top
	Beginning to understand the scale of your problem..... My concern with anything that isn’t catalyst setting would be shrinkage. It’s really upsetting when all you carefully covered Mark magically reappear after a few weeks/ months. Nick
	1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)

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VW Posted hell of a lot Posts: 6,000	Bodywork stopper VW @vw
	Nov 14, 2020 15:30:12 GMT Select Post Deselect Post Link to Post Back to Top
	Nov 14, 2020 13:07:30 GMT vitesseefi said: Beginning to understand the scale of your problem..... My concern with anything that isn’t catalyst setting would be shrinkage. It’s really upsetting when all you carefully covered Mark magically reappear after a few weeks/ months. Nick Yes, trying to avoid that. I'll carry on priming and sanding, filling the worst ones as I go. It will get there eventually. I think I'm looking for a solution that doesn't really exist.


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