Just curious, how does a cloudy cover prevent printing?
Also, the cloudiness is not directly a result of the IPA's impact on the cover material. The problem is that the IPA only thins out the resin, then evaporates. The cloudiness is residual pigment polymers and and initiators from the resin, "smeared about' via the IPA. Then due to it's being just a very thin layer it gets cured in place by whatever ambient light might be present.
I have had modest success in removing it using automotive finish buffing and polishing compound...
Also, the cloudiness is not directly a result of the IPA's impact on the cover material. The problem is that the IPA only thins out the resin, then evaporates. The cloudiness is residual pigment polymers and and initiators from the resin, "smeared about' via the IPA. Then due to it's being just a very thin layer it gets cured in place by whatever ambient light might be present.
I have had modest success in removing it using automotive finish buffing and polishing compound...
![[Image: 816-20120803-wide800.jpg]](http://www.paladinmicro.com/images/ForumPosts/816-20120803-wide800.jpg)