tiger stripes
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How not to leave tiger stripes when painting a metallic hood
Cross hatch pattern when spraying base coat. First coat at 45 deg then second coat at 90 deg to first coat.
check your spray pattern and work at the apropriate distance ,the more transparant the mix the more chance of creating tiger stripes ,the more even the spray pattern the better ,centre heavy patterns are always an issue so try to adjust the gun accordingly but side heavy patterns can also be an issue ,mostly i find that once you stripe on the first coat it wont cover up easily or with highly transparant colours will actualy worsen no matter what your do
Apply a coat of clear base, spray color until coverage, reduce ready to spray color 1 to 1 with ready to spray clear base, apply 1 coat. If stripes are still there reduce again 1 to 1 with ready to spray base. This should make them disappear if all other spray directions and techniques were followed.
I seem to have better luck if I reduce the pressure a bit and try not to spray too wet.
Increase your distance on your last coat and spray medium wet coats,too dry and it will cause adhession issues and feel like a piece of 40grit sandpaper when you go to tack it off …..
[quote=”Jayson M” post=30505]Increase your distance on your last coat and spray medium wet coats,too dry and it will cause adhession issues and feel like a piece of 40grit sandpaper when you go to tack it off …..[/quote]
I always spray the last coat at twice the distance, medium wet is the key, at least for me :deadhorse
Just have to be careful. Its pretty easy to get dry spray.
Twice the distance is alot 4-8″ is fine for coverage coats and 8-10 is good for a drop if your system needs it.Increasing distance on your last coat, proper reducer for the temp,make sure you gun is clean and operating properly.Pretty simple really….dry spray should not be an issue as long as you watch the paint going on the panel.
increasing the distance can create mottling ,i have found that colour that are prone to tiger striping are also prone to mottling ,whilst a drop coat is good for evening things out mostly as i said before an even fan pattern at the optimum distance is best ,basicly its all about practice and technique ,another trick is to lay a similar colour you know doesnt tend to stripe for the first coat ,ie lay a good covering fine silver first which can counter a more transparant heavy grade silvers tendancy to stripe
[quote=”ARTSPRAY” post=30512]increasing the distance can create mottling [/quote]
This is accurate only IF you are using too fast of a reducer for the temp that you are spraying in.In a spraybooth environment with good airflow and heat slow and extra slow works best and flashtime is the same as a fast reducer.Only icrease your distance on your last coat.I would recommend also to check pressure, and, in general, to use only HVLP technology for base coats.
When I had this prob it was mainly one issue. My gun was spraying heavy top and bottom. Making it impossible to ever lay down a large panel without striping. I was also using to fast of reducer. So I would recomend checking ur spray pattern and making sure ur using slow enough reducer for the temp
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