Hello All,

I just bought a 1952 Gottlieb Hit N Run wood rail in pretty nice shape. The playfield plastics are pretty curled, though. I've straightened SS and 60s-70s EM plastics using the oven for 5-7 minutes, slide in a big book and flatten technique. Is this the right technique for these too? At first touch they feel a bit more brittle than the later ones. I'd really hate to break one!

Here's a pic of one of the plastics:

_MG_6565.jpg

Thanks for the tips, so you think they're the same material as what I have in my 70's machines? They feel more brittle. I'm willing to give it a shot, though. Mostly in anticipation of that favorite cold beverage that follows...

Just to update everyone on this particular machine, I never got a chance to even attempt to flatten these plastics. Within days of moving this machine from the climate controlled environment it sat in since 1960 (an elderly friend's house with the thermostat set to HOT. all the time) these plastics basically exploded and splintered apart. My art studio is also climate controlled but closer to lower 70s. My guess is they were under tension as they curled and the temperature difference was too much.

I have since confirmed what I suspected in my original post and what others have mentioned here, you can't flatten plastics earlier than early/mid 60's. They're different composition than the later ones.

Cheers,
Art.