I have been working on the huge vinyl figure of Walt Disney's "The Rocketeer" that I've had in my stash for 10 - 15 years. I sprayed a coat of MM sand on the figure then painted it with oils without any problems. I painted the rocket pack and the helmet with Alcad gloss black base and let them dry for several days. When I painted the rocket pack with Alcad dark aluminum and airframe aluminum, I had small spots of minute cracks in the paint. I covered the helmet with a coat of MM flat black and let it dry for several days. When I applied MM brass to the helmet one side look good but the other side suffered flaws of minute cracks in the brass paint. I am in the process of stripping both pieces down to bare vinyl to repaint them. Are Alcad paints and MM enamels to strong for vinyl and should I use Acrylics? Any suggestions will be greatly appreciated. TIA.
My understanding is that vinyl doesn't react well to enamels and laquers and it can produce a situation where the offending paint never fully cures. I've always test sprayed a piece of cut-off vinyl with whatever primer I'm using as a barrier coat to ensure that IT will dry/adhere properly, let that cure for a couple of days, and have then gone on to use whatver over the top of that without any problems.
You cannot use enamels on a vinyl figure unless you use an Acrylic primer, or base coat, first. The enamels will not cure properly and lacquers can attack the vinyl. I painted a vinyl Terminator and Robocop using Testors enamels over an acrylic base coat with very good results.
Please note a few points of etiquette. First, would all contributors please use their real name and/or their actual e-mail address. All contributions are welcome but please refrain from political or abusive comments. These posts will promptly be removed from the server.
In addition, Figuratively Speaking is not a forum for the public criticism of the models that appear as Galleries or Articles. Please make any suggestions for improvements or criticism direct to the author via the email link at the bottom of the Article.