GavinJ
Club Retro Rides Member
MGB 3.9 v8 Sebring
Posts: 927 
Club RR Member Number: 209
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Mar 31, 2013 15:57:08 GMT
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Hi, After some advice, just painted my mgb in celly and really pleased with the finish but got a few questions... 1) Slight orange peel - what grade of paper should I used block this out? 2) Got a couple of runs, what's the safest/easiest way of getting rid of them? Some pics,   |
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Last Edit: Mar 31, 2013 16:05:31 GMT by GavinJ
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Mar 31, 2013 16:58:18 GMT
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Make sure you leave it to go off properly so it's hard before you start attacking it. For runs on flat surfaces use a fairly stiff block and 800 grit to take the top off, but try not to touch the surrounding paint at all. You can also shave the top off runs with a new razor blade held at 90 degrees to the surface like a cabinet scraper:  Be careful though! Once you've got most of the run out, use 1000 grit on a good flat block, followed by 1200/1500 to get the surface flat. As for orange peel, again use 1000 on really bad stuff, with 1200 all over, before machine polishing. Some people use 1500, some don't. It'll save you time polishing. |
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Mar 31, 2013 16:59:49 GMT
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I'd use 2000 grade for the orange peel, celly is soft and won't take as much time as flatting 2k, I'd start on 1200 then work my way to 2000 if it was 2k. For curved bodywork I wouldn't use a block, I just use it in hand with plenty of warm water with a bit of car shampoo. I'd definately use a block on the runs and depending on the size, start with 1500 then onto 2000. Don't go mad and try to keep the block straight so you're just flatting the run and not going through on the surrounding paintwork.
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1993 Mercedes-Benz 190e LE in Azzuro Blue.
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GavinJ
Club Retro Rides Member
MGB 3.9 v8 Sebring
Posts: 927
Club RR Member Number: 209
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Mar 31, 2013 17:43:19 GMT
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Cheers guys how long do you think is reasonable time before i start flatting then? paint was put on this morning, its in an unheated garage - would tuesday night be ok?
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Mar 31, 2013 17:52:15 GMT
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I'd start flatting it Saturday morning mate. Others may say different but I'd leave it for as long as possible, especially with the low temperatures we've had lately.
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1993 Mercedes-Benz 190e LE in Azzuro Blue.
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Mar 31, 2013 20:50:43 GMT
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poss not very helpfull but it looks like a really nice job anyway......
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rodney
Posted a lot
https://www.facebook.com/RD-vehicle-transport-and-recovery-services-525622614268010/
Posts: 1,677
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as above for the flatting and mopping,
i just done a escort in celly for cheapness and a tidy up and its dry enougth to flat in a afternoon,
more than dry enougth to mop with g3 by the next day,.
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facebook: rodney dean / rd transport  |
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ChasR
RR Helper
motivation
Posts: 10,194
Club RR Member Number: 170
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I'd go with Jizmondo's advice  . 2000 W&D on the basis it is celly for flatting the car back. 1200-1500 should take care of the runs (without touching the surrounding paintwork). Everyone has different experiences. Some people are happy to polish after using 1200, others prefer 2000. Alistairk here wrote a great writeup on painting. I believe he did also tackle the issue of flatting back/mopping as well. As an alternative to G3, I can recommend 3M Fast Cut Plus with the matching head. It has slightly less initial cut than 3M Fast cut but it does break down very well to leaving a lovely polished finished. |
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. 2000 W&D on the basis it is celly for flatting the car back. 1200-1500 should take care of the runs (without touching the surrounding paintwork). Everyone has different experiences. Some people are happy to polish after using 1200, others prefer 2000.