Hello,
I have some raw polyurethane parts that I am trying to paint. I properly sanded and cleaned the parts. I sprayed a coat of Bulldog adhesion promoter then Epoxy Primer with 10% reducer and the primer starts to react creating a cracked look. It happens within 5 minutes of spraying the epoxy.
When I spray the epoxy over the adhesion promoter with no reducer added there is no issues at all, however the epoxy is orange peeled. I need a smooth surface.
I am manufacturing these parts and I want my customers to have a nice smooth epoxy primer surface. I also like the idea of having the open window time that if a customer wants me to paint the items for them. I can pull from inventory if its in the window time and simply denib the epoxy and base/clear.
I have the waterborne version of Bulldog adhesion promoter also available that I haven't tried yet. Would that make any difference?
There is also the debate about not needing adhesion promoter which would be even better because it would eliminate a step and cost. But then other people say I absolutely must use it. I can't risk paint failure or my reputation would be destroyed.
Any ideas ?
Here is a link to the pictures:
https://pasteboard.co/GEwiCY6.jpg
https://pasteboard.co/GEwiMwtW.jpg
https://pasteboard.co/GEwjCxm.jpg
I have some raw polyurethane parts that I am trying to paint. I properly sanded and cleaned the parts. I sprayed a coat of Bulldog adhesion promoter then Epoxy Primer with 10% reducer and the primer starts to react creating a cracked look. It happens within 5 minutes of spraying the epoxy.
When I spray the epoxy over the adhesion promoter with no reducer added there is no issues at all, however the epoxy is orange peeled. I need a smooth surface.
I am manufacturing these parts and I want my customers to have a nice smooth epoxy primer surface. I also like the idea of having the open window time that if a customer wants me to paint the items for them. I can pull from inventory if its in the window time and simply denib the epoxy and base/clear.
I have the waterborne version of Bulldog adhesion promoter also available that I haven't tried yet. Would that make any difference?
There is also the debate about not needing adhesion promoter which would be even better because it would eliminate a step and cost. But then other people say I absolutely must use it. I can't risk paint failure or my reputation would be destroyed.
Any ideas ?
Here is a link to the pictures:
https://pasteboard.co/GEwiCY6.jpg
https://pasteboard.co/GEwiMwtW.jpg
https://pasteboard.co/GEwjCxm.jpg