quick question

[fred sanchez]

can you engrave polypropylene ?

[Mike Chance in Iowa]

If you use the SEARCH feature on this forum, you will find all the answers you need. ;)

[Mike Null]

Fred

I went to the Synrad applications site and did not find any entries but here is a German site which indicates cutting and marking are good but engraving is iffy.

http://www.eurolaser.com/en/materials/cutting/polypropylene-pp/

[fred sanchez]

thanks guys

[Michael Hunter]

For some reason, polypropylene (and polyethylene) don't vapourise well, but melt under the heat of the laser.

You just end up with a puddle of molten plastic and when it's set hard again the "engraving" is barely visible.

For cutting it, you needs lots of power and air-assist to blow away the molten stuff.