I used to be fine at spraying with rattle cans, I sprayed the wiper arms in the summer, looked good at the time but now look like crocodile skin, also sprayed the door lever again looked fine but now the surface seems rough and the lacquer seems to be separating from the paint, any ideas, am I not waiting for the base coat to dry out properly, or is it to dry to apply lacquer, I think I applied 2 coats of lacquer, any help would be much appreciated as I want to redo the door handle this weekend, and repair a scratch that was caused by someone opening there car door and resting it on mine, I sometimes think it's a waste of time trying to keep my car smart s:cry: :cry: s:cry:
As mentioned elsewhere, preparation is the key and particularly applicable to paint which requires a clean 'keyed' surface before painting with several light coats rather than one or two heavy coats. The subsequent coats should be applied within the timings noted on the instructions. Similarly with the lacquer, this must key with the paint surface and with each coat. The under layer being too dry or too wet will affect the ultimate finish.
Don't forget to shake the can before and during use to keep the solvent/ solids well mixed.
I sprayed my ibiza wheels with rattle cans and lacquered them and after quite a few months the lacquer started to peel in places. I also sprayed my centre console and lacquered that and it too peeled off (same manufacturer for paint and lacquer).
I read a post somewhere from a guy who doesnt lacquer his wheels, just polishes up the paint and swears by that so that may work for your wiper arms (thats what I did with my centre console).
I have also read people saying you should put on the next coat of lacquer while the last is still tacky but that seems at odds with what people used to say about light coats and allow them to dry before the next coat? Paints are different now though so maybe things have changed although the instructions on the can should be the best way to do it!
I would certainly sand lightly when going from paint to the lacquer stage to give more of a key but I am not so keen to use lacquer in future after my experiences.
Have you had a quote from a paint shop for them doing this work? I wouldnt want to use rattle can on the bodywork and try to get a decent match. If the paint guy (and you!) is coming to Ding Day next year he could probably sort something out for you?
The Halfords paints have taken a massive nosedive in quality the last few years. Just did my center console and it was horrible to do. I sprayed tons on my old pre-fl with the same paint and it was smashing.
Letting it dry completely before lacquer is a no no. It had to be on the dry side of tacky. Sanding not necessary
There was a legislation change a few years back which meant that most of the chemicals added to paints had to be changed for more environmentally friendly ones and all the companies had no time to do the stability testing or long-term storage work and stuff.
That is why a lot of you brand new cars have issues with paint peel.
I suspect the same applied to all the Halfords spray cans.
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Aha. I'm all for harmful chemicals in some cases. If it means wearing a mask, id rather do that.
Same with gloss when decorating. It's gone to crap because apparently the chemicals used before that actually made it work were removed.
Same with creosote.
The list goes on.
You've likely seen the warnings about the removal,of ( old ) lead paint. Well as far as I am aware lead paint has not been available to the general public for many years, yet we are still seeing warnings about it. Why is that? Because ' harmful' as it is alleged to be it lasts a long long time!
I do miss creosote, the smell, for me is reminiscent of summers past. Pretty sure the water based expensive jossop now available does not penetrate nor last as well as the old 'smelly' stuff.
As for spray cans- don' t forget also, as with all painting, the correct temperature and humidity during application is essential for the best, durable, finish.
The thing is it's not just paint that this affected, pesticides, fertilizers... Anything you mix into a formulation that required surfactants were affected.
They brought out the change and it's effects will be felt for a long time to come and I don't know if it was worth it to be honest.
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I spoke with the paint guy at ding day a couple of years ago, Halfords are not licensed to sell proper car paint, it is what he called hobby paint, he said if your going to use rattle cans then get it from a genuine car paint supplier.
Quote from: "Hext007"I spoke with the paint guy at ding day a couple of years ago, Halfords are not licensed to sell proper car paint, it is what he called hobby paint, he said if your going to use rattle cans then get it from a genuine car paint supplier.
That explains a lot
Thanks for your advice, luckily I booked today off and the weather was good, managed to spray the door handle with base coat then lacquer, I did lightly sand the base colour, time will tell, I agree the old paints were better, I preferred the smell, the same with creosote, eventually the will get rid of petrol, another smell I like.
Ive always wondered what is different about rattle can paint. traditional solvent 2 pack paint contains isocyanates so you cant spray without airfed mask and full protection so you wouldnt get that in a can. more modern paints are waterbased but that requires special heaters to dry it properly soit cant be that.
Ive never been able to get very good results with them anyway