Charles Sellers
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Hi guys, i thought i’d update you all on this since i’ve had a chance to redo the job properly!
I’ve sanded the offending area (sorted the rust again too) and primed. The rest of the panel i went over with scotchbrite. Using the advice above i’ve coloured most of the panel as high as the rear quarter glass (extending further each time to blend out the colour). Once i’d got the colour down i’ve clearcoated to where the metal is narrow behind the rear quarter window, on the blend i’ve used a bit of fade of thinners.
All in all i’m really pleased with the job. I tried not to paint right up to the edge of the panel at any point, but also to extend the colour each time and tack rag between coats. I also allowed proper flash times. The end result is a near perfect (in my eyes!) match and a great finish. The only trouble i had was trying to get the clear to lay down totally flat with the cheapo gun (a parkside china-based item). It creates lots of mist but poor transfer as per the post above. There is a bit of orange peel lower down bit it will easily paper out.
Easily the best thing i’ve painted so far, will have to snap a picture when i get the chance. Really appreciate the advice on here though – i wouldn’t have got a result without it, genuinely learned a lot. I’m doing the other side next weekend so i hope this goes as well or better! 🙂
Cheers, i’ll do that. To be honest i didn’t allow for proper flash times as i was running low on daylight when finishing the job – the clear in particular got hammered on fairly quickly.
I know there are a couple of different tack rag types, some of which leave debris on the panel. Can somebody link me to an ebay special that’ll do the job please?
I’m itching to have another go at this now, although due to the area involved it’s not far a full panel job – although i’d like to master the spot repair to a decent standard first for my own sense of satisfaction as much as anything.
Cheers
CharlesThat’s great information guys, interesting to hear that others have had issues with the 777 blender too.
I wondered if the rough outer edge of the metallic paint had led to the clear not covering completely and the blender coming into contact with paint particles not just clear, but it just sounds like i put it on WAY too late in the day and ruined the job!
I’m hoping to have the weather to have another bash at it this year, fingers cross i’ll get another sunny sat/sun soon.
The gun is a budget type and does recommend 3 bar, furthermore when i used it with the pressure adjuster turned down partially it didn’t atomise a clearcoat layer i sprayed and it went on with the most orange peel i’ve ever seen. It took hours of sanding to fix! I may well turn it down a bit for the colour coat though, i think Andy is probably spot-on about the high pressure causing a halo effect. The particles were literally going everywhere.
If i allowed longer to cure between coats and used a tack rag would this help reduce any of the settled overspray and halo effect?
Really? I was just going on the setup instructions from the gun, it’s an HVLP gravity fed type (economy branded).
Hi Guys, i finally got chance to have another look at this – a full day of sun (In October this is a rare thing for the UK!).
I’ve done a rust repair on the other side and it has had filler primer showing for a month now, time to get some paint over it. I’ve taken in all the advice above and also purchase some fade out thinners (HB Body 777) for blending my clearcoat.
The repair section was super smooth so i prepped the area around with grey scotchbite. All the adjacent panels were masked up and i planned on using ~12 inches for the repair (couldn’t easily go much further). The gun was adjusted to a fairly narrow spread with fairly low paint coverage for the basecoat, pressure was about 3bar. The colour went on ok initially, although as i had to apply more coats (to cover the orange filler primer – should have gone over it with grey..) i noticed the light halos appearing towards the edge of my painting. I tried to minimise this but there were some light halos, although they were small enough that i could live with them.
The clearcoat i extended past where the basecoat ended, although i messed up a bit and put the first coat on too heavy. This resulted in a run when i was annoyed by, but this will easily paper out. I did 3 coats in total and after each coat i used the fade out thinners on the outer edge so it blends with the existing clearcoat.
All appeared fairly well, i’d managed to blend the colour (halos aside) and it was a really good match. i removed the masking and headed off home (i paint at my parents, more space). When i got in i admired the work a bit, but noticed a rougher area towards the edge of the clear, i thought i’d perhaps not used enough of the thinners on this area and decided to melt it in to ensure a better blend. I applied a decent amount of spray thinners to the area, probably too much actually. To my horror the entire blend area starts to wrinkle up with a huge paint reaction, i was absolutely gutted – the job is obviously now a bust and i have to start all over again.
I’ve not taken any pics yet because i can’t bear to look at it, but i’d love to know what i did wrong? I’d already used the thinners on other areas with some success – it was working fine. I applied this final blast about an hour after the painting had finished, it was a little later and a little cooler perhaps. Why did it wrinkle up like this?!
I look forward to your comments guys, i’m keen to learn and correct it! 🙂
Wow, thats a really detailed response and exactly the sort of information i was looking for – thanks for taking the time to respond!
Quite a lot of information to take in, luckily i do actually have a few scrap panels i can practice on. I would really like to tackle more paintwork myself so i’m going to take my time and learn how to do it properly.
I’ve got access to a gun and all the relevant tools so this should be doable. You’re quite right about the restricted sale of 2k clearcoat (well, the hardener) in the UK – although this was a few years ago now. In reality the paintshops realised that they were missing out by not selling these products to end-users. This means that a blind eye gets turned and paint shops will happily supply these goods to anyone. I actually bought some hardener a few months ago without any problem (i painted my wheels – turned out great btw!)
Something else i’ve been wondering, it’s always said that you should blend into adjacent panels and not spray a panel in isolation. I’ve actually had a rear bumper painted by a local painter when it was off the car, once fitted the paint was actually a perfect match. Blind luck or is there more to it? The paint match is superb, although in terms of a quality job – it wasn’t great. The basecoat wasn’t put on thick enough lower down the panel and you can see some primer, the paint has also started to split along one of the edges..
Thanks!
Charles