What happened to my Poly S?

Acrylics are not really known for being great at adhesion because of their nature. Enamels and lacquers chemically bond to the plastic and acrylics really do not, so you have to help them by giving them some "tooth" for the paint to adhere to. Try scuffing the plastic with one of those green Scoth brite pads that you wash pots and pans with before painting. The Scotch brite pad will leave light scratches that will help the paint adhere to the surface. Make sure to use the green ones as they are softer. They also make other colors of pads that are of a rougher texture that will scratch too deeply.
So try scuffing the surface like I said, then wipe the prop down with alcohol and paint it again and let us know if that solved it or not.

Mike

I like to paint the yellow first, it's easier to mask,and if it pulls off, less to repaint. I use enamels though, so I've never had paint come off like that.

Thanks guys,

My last model was 15 years ago, then I got side tracked into RC airplanes. Giving plastic a go again. I remember having the same problems back then with water paint and I believe the brand was poly.

Well since then, acrylics were supposed to have been improved. I did my cockpit on my current project with Poly and I sure liked the way it brushed. I did sand off the blades and shot it with enamel thinned wiith laquer thinner. Shouldn't have any problems with that but I would sure like to get the Poly to work.

Anyone have similar problems with Testors acrylic? That is what I bought and planned to shoot the outside with.

MikeV

If I were to use Poly for the exterior paint on the fuse and wings, would I have to "scratch" the surface of all the parts? Don' know if I would want to do that.

Thanks to all.

cbreeze, i had the same problem with polly scale acrylic piant. actually, it was just interior green mainly, but it seems a few other colors would lift as well. everybody talks about the tamiya paints and thinner being to pricey, but i buy tamiya at my LHS and cheaper than polly. my recommendation is buy tamiya acrylics, ive never had a minutes trouble with them. they smell sweet as well.

ps tamiya dont have much of a color selection so you may have to learn to mix colors. its not very hard though, go buy you a color wheel and the primary and secondary colors along with black and white and youll be set. oh, buy some tamiya flat base as well. to me, mixing adds a little more excitment to my hobby, and saves space and money.

QUOTE: Originally posted by cbreeze MikeV If I were to use Poly for the exterior paint on the fuse and wings, would I have to "scratch" the surface of all the parts? Don' know if I would want to do that.

If you aren't masking the areas then you don't have to scuff the surface.

Mike

Try using 3M modeling masking tape. If you are paranoid at the risk, detack the tape by applying to a clean sheet of glass and pulling off a time or two to remove some of the adhesive.

Randy