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![[Post New]](/s/i/i.gif) 2012/01/15 20:19:13
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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Hi,
Purchased some of this during the week......
I primed a blood angels drop pod in this earlier today using my airbrush. It looked nice and I left it to dry.
I was packing the item away and I noticed the primer is just rubbing off. I have since painted a section of another model in this "primer" and it just rubs off.
I alway de-grease before painting and I am at a loss as to why the primer wont stick.
An internet search yields other people who have had this problem. is it me? Or am i Missing something? Does it have a 1 day + cure time? Or do I need a new primer?
Any help would be greatly appreciated.
Regards,
Adam
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![[Post New]](/s/i/i.gif) 2012/01/15 21:40:56
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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It could be drying before it hits the mini? What pressure and what distance are you spraying at?
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![[Post New]](/s/i/i.gif) 2012/01/15 22:02:31
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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I am spraying about 4 to 6 inches away. I cant adjust the pressure because I have a fixed compressor.
My setup is below:
http://www.air-craft.net/acatalog/Harder-_amp_Steenbeck-Airbrush-Starter-Set.html
I thought it might be down to airbrush however I painted (with brush) another plastic model and left it to dry for a few hours and it also just "comes away" the same as the drop-pod. Therefore this brushed on approach leads me to think it isn't "air-brush related".
I am tempted to try another primer, although I am very surprised because the Vallejo Primer seems very popular.
I am at a loss really...thanks for responding....any more thoughts?
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![[Post New]](/s/i/i.gif) 2012/01/15 22:09:11
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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Hmm, thats the only thing i could think of really. I use the same stuff through an airbrush and it sticks to metal like glue.
I guess it might have been sitting on a shelf somewhere for ages? You could try taking the lid right off and giving it a really good stir.
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![[Post New]](/s/i/i.gif) 2012/01/15 22:15:03
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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Yer, I will....i have set up a couple of overnight test models to see if it needs a substantial curing time. If not then I will see if I can get a replacement sent to me asap.
Thanks for your help man
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![[Post New]](/s/i/i.gif) 2012/01/15 22:16:55
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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If you have no luck I can only really think its either a bad batch, or its got too hot or cold at some point in its life.
Good luck with it, its a good primer when it works!
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![[Post New]](/s/i/i.gif) 2012/01/15 22:24:57
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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Yer will drop a line to the supplier....luckily it was "just" a drop pod and not my other "toys" lol - Thanks mate
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![[Post New]](/s/i/i.gif) 2012/01/15 22:25:50
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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least itll come off easily before you reprime
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![[Post New]](/s/i/i.gif) 2012/01/15 22:53:30
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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yer..I ordered some acrylic paint remover....thats next sat morning sorted then lol.
Incidentally.....what is your "dry" time on your primer?
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![[Post New]](/s/i/i.gif) 2012/01/15 23:11:17
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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well they appear dry in a couple of mins, but i leave them for an hour or so just to be sure
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![[Post New]](/s/i/i.gif) 2012/01/15 23:27:21
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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Yer I thought as much. I just tested everything I had painted again and it all just comes off upon contact. I have dropped a mail to the supplier...hopefully I will get another or might give Alclad a go.....although I just read that the primer has a 3 day cure period on plastic???
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This message was edited 1 time. Last update was at 2012/01/15 23:48:09
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![[Post New]](/s/i/i.gif) 2012/01/15 23:56:16
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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I can only find mentions of things like "quick drying time" worth seeing if it hardens up over the next couple of days, but that seems like a very long long time!
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![[Post New]](/s/i/i.gif) 2012/01/15 23:57:08
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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Yer..I will provide some feedback on Wednesday lol. Speak soon brother
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![[Post New]](/s/i/i.gif) 2012/01/16 20:44:13
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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24 Hours later and it's hard as nails...I cant scrape the stuff off any more lol. Seems it just takes a while to dry properly :-)
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![[Post New]](/s/i/i.gif) 2012/01/16 20:46:17
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Willing Inquisitorial Excruciator
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Good to know. I had similar issues and just chalked it up to airbrush primer not being as good as aerosol primer, something I had heard claimed before. I'll have to try letting one cure overnight.
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![[Post New]](/s/i/i.gif) 2012/01/16 20:56:43
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Rogue Grot Kannon Gunna
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Yeah it's just the time it take to fully cure. I always leave overnight and it's rock-hard the next day.
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![[Post New]](/s/i/i.gif) 2012/01/16 21:38:48
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Longtime Dakkanaut
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I will have to start leaving it longer, I've only used it on metal so far and it seemed to dry pretty quickly.
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![[Post New]](/s/i/i.gif) 2012/01/16 22:08:54
Subject: Vallejo Acrylic-Poliurethan Primer (Grey) - Help
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Legendary Dogfighter
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Yer it's nice to see a good end to this thread....now to spend some time removing the primer from the drop-pod. Sweet :-)
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