Can you cut plastic with a hot knife?

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asked Dec 10, 2020 in Do it yourself by KehuiXiao (620 points)
Can you cut plastic with a hot knife?

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answered Dec 10, 2020 by Larry S (42,350 points)
Some types of plastic can be cut with a hot knife.

However cutting plastic with a hot knife will emit fumes and plastic smell which could be harmful to breath in so it's best to have ventilation when cutting plastic with a hot knife.

A grinder or even just an electric saw can easily cut plastic as well.

A hack saw will also work great to easily cut the plastic.

But if you have a hot knife then the electric hot knife should easily cut through the plastic.

I've cut plastic with my hot knife before and it worked great but for thicker plastic a saw will work much better.

Breathing in plastic fumes and smoke is not good for your health so it would be a good idea to wear a mask as well when cutting plastic with the hot knife.

That will help filter the air you breathe in so that you don't breathe those nasty fumes in.

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