Cutting soft foam sheeet

[Evan Winn]

Any body cut "Flame Retardant Oil Rst Blended Buna Foam Soft Sheet?

[Doug Fisher]

Buna N sounds like a trade name. Research it to find out the general/generic foam classification and chemical make-up for it.

[fred ungewitter]

A very brief search would indicate that Buna-N contains neoprene. A follow-up search indicates that neoprene releases hydrogen chloride gas, making it unsafe for laser use.

[Evan Winn]

I did find that it has neoprene and vinyl. So this is not the same foam as used for say a gun case or packaging?

[Mike Henry]

FWIW, I've successfully cut closed cell polyethylene foam in various thicknesses, from 1/16" to 3/8", with no issue. You might that an acceptable substitute for Buna-N or Neoprene. I get the stuff from McMaster-Carr but there should be plenty of suppliers. EVA foam might be another option and I think that is also laser-safe. EVA is popular in the Cosplay community and should be pretty easy to find. Pickup from a local source will save you quite a bit as opposed to shipping cost, especially if you need large pieces.

[sebastien laforet]

EVA foam might be another option and I think that is also laser-safe. EVA is popular in the Cosplay community and should be pretty easy to find.

i've tested EVA and it cuts very finely. clean cut and not too much fumes. i've tested only high density (125kg/m3) but the softer should be even easier to cut.

[Miroslav Ilisin]

EVA foam might be another option and I think that is also laser-safe. EVA is popular in the Cosplay community and should be pretty easy to find.

i've tested EVA and it cuts very finely. clean cut and not too much fumes. i've tested only high density (125kg/m3) but the softer should be even easier to cut.

Hello, have you tried engraving Eva foam and what is setting for cuting and for engraving. Thank you.

[sebastien laforet]

Hello, have you tried engraving Eva foam and what is setting for cuting and for engraving. Thank you.

can't remember the settings, but low power, fast cut... engraving, not done myself but it seems ok (as seen on some cosplay forums). obviously, then engraving will remove material, but will not "mark" it like it does on wood/paper and other materials with carbon that burns.