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General => Cosmetic and bodywork matters => Topic started by: jamie_pyrite on 09 March 2009, 21:13

Title: Help painting! Rubbish finish.. (pics)
Post by: jamie_pyrite on 09 March 2009, 21:13
Hi all, I'm in the middle of attempting to re-spray my mk2 VW badge black, as well as some armour door plates black.

I sanded them all back and prepped them, primer'd them and used Hammerite Smooth black rattle can.

I've warmed the can up first and shook it for about five minutes before every coat. I've also cleared the can after every coat (spraying it upside down until the paint doesn't come out) to prevent blockages.

Sprayed with a technique I see everyone else using and haven't oversprayed (to my knowledge) but the finish just isn't smooth or good at all! It's full of "pits" on the door plate, whereas the badge is just a bumpy surface with tiny dots here and there.

I'm also struggling to get the parts in between the holes painted properly. If I try to spray into them, I end up just overspraying the front surface!

(http://farm4.static.flickr.com/3373/3342481676_bcf5bbdfe5.jpg?v=0)
(http://farm4.static.flickr.com/3380/3342480856_42b561407a.jpg?v=0)
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: GOLF_STU on 09 March 2009, 22:38
looks a bit like you got a bit of contamination but tbh iv never got on with hammerite spray  :undecided:
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: jamie_pyrite on 09 March 2009, 23:29
What would you suggest doing and what would you suggest buying for paint? :)

I was thinking of flatting it down with 1500 grit wet and dry to remove the bumps then putting another coat on?
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: Ben Lessani on 10 March 2009, 00:41
I've never had a finish like that from hammerite - how close were you spraying / how heavy a coat were you laying down?

Best thing to do is clean all the paint off with thinners, give it a quick blast with some 400 grit w+d. give it a light coat of plastic paint adhesion spray, then give it a couple of coats of your hammerite. But spray from a minimum of 12" and don't try to cover it all up with a single spray!

Leave it for about 15 minutes between coats, applying a light coat.

Hammerite usually takes 24 hours to cure (some versions up to 3 weeks), so let it set hard, then fit it.
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: jamie_pyrite on 10 March 2009, 00:56
Thanks Ben, I'll give it a go tomorrow then. I'm spraying in my garage but I'm thinking the draught coming in from the bottom of the garage door may have something to do with it.

Spray from 12" away? I've been spraying 6" away as I thought it was 15cm! Ahh well, I'll give it another shot tomorrow then :)
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: Mac76 on 10 March 2009, 01:41
Did you degrease the bits as it looks like silicone contamination also known as fish eyes

HTH Marc
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: HeidiG on 13 March 2009, 19:03
My hubby owns a bodyshop in Newcastle Staffs
He said if you pay the postage to him and back he will do them for free !!

Pm me and i will give you his work address
He doesnt mind helping people out with paint issues !

Hope that helps you out
Heidi
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: navmk4gti on 23 March 2009, 20:53
you need to sand it down and then apply one coat of the colour you want... makesure you are not spraying right next to the badge leave atleast 20cm when spraying... and put it in a closed box!!
this way no dust get to it while it is drying..
which is why yours looks like its bubbling... also once its dried apply laquer (spray can will do) and again put it in a closed box give it atleast 2 days to dry properly and dont touch it as it will leave smuges on the laquer...

i recomend halfords laquer its the one i use on the badges i sell and not had a complaint yet so  :grin:

i recently sold a vw golf mk2 black badge set on ebay...

as i spray the badges and sell them on for people who dont want to go through the hassle you are lol

hope this helps good luck  :smiley:
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: monzablue16v on 23 March 2009, 21:22
2 days to dry, geeze what lacquer are you using? floor varnish?
Title: Re: Help painting! Rubbish finish.. (pics)
Post by: navmk4gti on 23 March 2009, 22:01
as said halfords laquer.... and yes 2 days that way stay ON THE SAFE SIDE!!   :rolleyes: