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| Auto Borne Issues; Anyone Else this prob? | |
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| Topic Started: Feb 6 2010, 03:24 PM (1,034 Views) | |
| Mr Pid | Feb 6 2010, 03:24 PM Post #1 |
Misunderstood Genius!!
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Im still getting that same problem with Autoborne. I have tested this over and over and it just doesnt seem to want to dry and always maintains an elastic consistancy. I even let it cure for a week and baked it in the oven before masking. I actually had the strange occurance of the masked area staying put and the painted area, including the base coat lifting off with the masking film. It still seems to want to bond to itself and bridges across any masked areas. I have tested this also with Com Art, HOK and Etac and it doesnt happen. I tried it with the old formula AA and it doesnt happen with that either. Im pretty much at a loss as to what it could be but I dont want to have to eliminate it from my paint shelf. Anyone else experience this prob or have any ideas? |
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| Artspray | Feb 6 2010, 08:09 PM Post #2 |
 
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odd one Stu ,i havent had an adhesion issue with it but heres a trick for you to try if it still feels tacky ,sand it back and lay a light coat over ,it then stays chalkier what is your prep ,i use P600 with acrylics ,i have had issues with etac PS in the past and i found that stuff stayed elastic ,i find sanding between coats helps drying ,or if it has gone tacky i sand and then lay a very fine coat which seems to resolve the problem im a bit unsure what you are saying ,is the masked off area OK but the unmasked pulling off with the film thats left over your tape ? Paul |
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| Mr Pid | Feb 7 2010, 11:59 AM Post #3 |
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Misunderstood Genius!!
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Yes bud - I have attached a pic. If you can imaging all the black was masked off and I was painting the flames - when I finished and lifted the masking the black base stayed there and the flames lifted, including the base layer as if it had melted it. I have spoken with Dennis about this and he is a bit lost as well. I then tried chasing the paint with a heat gun - which worked a treat, although the base layer cracked under the heat. I gave up at this point and opted for true fire instead. The upside to that is that i have pretty much nailed it and down to only three colours! 
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| KatLeib | Feb 7 2010, 02:15 PM Post #4 |
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Wheres your pic of the adhesion problem.....all I see is a stock photo with no visible adhesion issue. I have not had any lifting problems with the couple of helmets I have done. I have also taped areas of clayboard off that had been painted and the paint stuck like glue. How heavily are you laying the paint? |
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| Mr Pid | Feb 7 2010, 02:55 PM Post #5 |
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Misunderstood Genius!!
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Here is a pic of the actual problem. |
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| Mr Pid | Feb 7 2010, 02:56 PM Post #6 |
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Misunderstood Genius!!
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The black part is the paint that lifted. As always - the paint was dusted on.
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| Artspray | Feb 7 2010, 07:25 PM Post #7 |
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well the only difference btween colours should be the actual pigments ,i would be surpised if the problem was there i would suspect your prep as in the grade of paper initialy used ,i use P600 for acrylics also to get those colours to full saturation over black would require heavy aplication this is going to give you a problem with the edge or lack of one as the film layer is extending over the masking try knocking back the edge with sandpaper prior to you last coat of colour ie sand it back to the masking material so there is no overlap of the paint film ,this should stop it peeling the paint you want to stay put as the last very thin layer would snap as required as you know most if not all acrylic type paints have an elastic quality to them .i think the high build over the masking material is the issue and the edge isnt snapping clean and then the film is being pulled too severly along with the masking material Paul |
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| Artspray | Feb 7 2010, 07:38 PM Post #8 |
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one other thing Stu ,did you cut those shapes after laying the mask ,if you cut through the base then this will also have great bearing on the next film layer being able to pull the base off as it has got a start in the form of a weak point where it can break the physical bond and allow the base to peel away you may find that the points where there is no cut the paint stays down and the fresh paint breaks where it was supposed to paul |
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| Hasey | Feb 7 2010, 09:58 PM Post #9 |
Silverfox
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I was wondering that too, as the blade may have cut right through the base so when the flames are built up and create a bridge onto the masking, it's pulling that paint away from the surface with the masking, sound about right, if not just tell me to shut up  but that is how it happened to me when I done the cam on the memorial helmet.
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| Mr Pid | Feb 7 2010, 10:14 PM Post #10 |
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Misunderstood Genius!!
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Na - I never cut on the suface unless I absolutely have to - the mask was cut on my plotter and then applied. The surface was prepped with 800 wet n dry - its just confused me that it took the base layer off as well and left the negative space. I wouldn't be so miffed if it was the paint I was laying on top, too thick maybe that came off on its own. I painted four of the cases true fire style and masked over the top - with masking tape and film and this didnt lift when removing so that indicates the paint was keyed in properly. Nevermind - just one of those things i guess! |
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8:17 AM May 18