Peterpools Posted February 21, 2019 Share Posted February 21, 2019 Never, ever had I experienced paint crazing but it has finally happend. I’ve been air brushing lacquers over Mig Gray Primer (an acrylic) with zero problems for years and In fact, the entire Corsair paint job is Gloss Mr Color over Mig Primer and perfecto: no problems. I decided to paint the drop tanks a slightly different shade of Gloss Dark Navy Blue and used a brand spanking new bottle of MRP Paint. Usual procedure is a few mist coats, followed up with three wet coats for the a super smooth gloss finish. With in a few minutes, I began to see a lot of crazing and discoloration. OH NO! Thinking somehow the three wet coats were just to much, I strip the drop tanks down to bare plastic and then re- primed with Mr Surfacer 1200 and let dry for a good 24 hrs. Then I re-shot the drop tanks as before with MRP. I fell right off my chair - the drop tanks were all crazed and stained again. Before the MRP was air brushed, I checked the primed drop tanks and they were perfect. Stripped them again, re-primed with Mr Surfacer and then re-shot them this time wih Mr Color to a super smooth, deep gloss finish. Perfect finish and zippo crazing. My only conclusion: stay clear of MRP for multiple wet coats needed for a gloss finish, as the level of thinner must be ridiculously high as the paint is like water. I shot the MRP straight from the bottle, with 4 drops of mild retarder added, as I have always done for years when doing gloss finishes and no ptoblems until I tangled with MRP. Using up my supply for only matt finishes and then: good bye! Peter 3 Link to comment Share on other sites More sharing options...
Bomber_County Posted February 21, 2019 Share Posted February 21, 2019 Hmmmmmmmm, glad you got it sorted Peter. Knowing my luck that would have happened on the plane and not the drop tanks....... 1 Link to comment Share on other sites More sharing options...
Peterpools Posted February 22, 2019 Author Share Posted February 22, 2019 Phil, I git lucky. I'm testing Hataka lacquers just to make sure they behave like Mr Color and not MRP Peter 1 Link to comment Share on other sites More sharing options...
BlrwestSiR Posted February 22, 2019 Share Posted February 22, 2019 Damn, glad to hear it was only on the tanks. Had a bit of an operator error myself tonight. Found a hair on the nose of the BF110 right after spraying the clear. In trying to get it off, I smudged the squiggle camo as I guess it was soft from the clear. So a bit of touch up for me. Carl Link to comment Share on other sites More sharing options...
NigelR32 Posted February 22, 2019 Share Posted February 22, 2019 This should be noted and stored in our memory banks guys. So, if we wanted to achieve this kind of finish, on say a very well worn F-100 headrest, we could easilt realise the cracked leather appearance from years in the sun. Only trouble is... if we wanted it to happen.. guess what!! 3 Link to comment Share on other sites More sharing options...
Peterpools Posted February 25, 2019 Author Share Posted February 25, 2019 Nige Of course Peter Link to comment Share on other sites More sharing options...
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