Lonewolf
Moderator
Gods Country
Posts: 2,551
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Post by Lonewolf on Apr 22, 2008 19:54:13 GMT
Dave Hawkyard emailed me pics of his latest model which is a lovely Scania in an Irish livery. Or at least would have been but hes got a cracking problem. He tells me its all Halfords rattle cans, white primer first, then white, then the blue. However the blue has cracked, you can see it on the nearside front on this pic. Any ideas anyone?
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Apr 22, 2008 20:06:41 GMT
It's possible that the blue and white colours are drying at different rates, what was the time difference in between spraying the two layers? ... was the bottom layer keyed (flattened) or was the blue simply sprayed over the white gloss layer?
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Post by barv on Apr 22, 2008 23:08:30 GMT
Have found it may be 'cold cans' ---allways leave mine in some warm water before use............tried giving bottom coat of clear or matt before top coat ? aye BARV
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Post by Fatty on Apr 24, 2008 7:08:41 GMT
I had this problem with the Wallace and Gromit "Chav mobile" mk1, what happened was that each paint type (base coat and clear coat) had dried at differnet speeds, causing the top clear coat to crack as it was "stretched".....
I have found that if you leave at least 3 days between each layer it has elimnated the problem (so far anyway lol)
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Post by papasmurf on Apr 28, 2008 11:49:22 GMT
Hi folks, thanks for the feedback. There was at least four days before the blue went on top of the white and the white was lightly scuffed up with 1200 grit, one answer that seems to be in the right direction maybe is the temperature.
All the spraying was done in the shed (heated with an oil radiator to keep the chill out) I guess I should of brought the cabs into the house to dry off? The Actros which was sprayed in November (finished just in time for the nationals) and the Scania was done in February. Anyone got any ideas for removing halfords paint? thanks for any info, signed a pretty miffed smurf!!!!!!!!!!!!!!!!!!
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