What Is The Best Way To Cut Styrofoam?

Decorating By mom2spunkynbug Updated 14 Aug 2014 , 2:13pm by ropalma

mom2spunkynbug Posted 3 Mar 2011 , 5:02am
post #1 of 9

I want to cut an 8" round styro in half - what tool will give me the cleanest cut? Will a regular (long) knife work?

8 replies
crumbcake Posted 3 Mar 2011 , 5:23am
post #2 of 9

Craft stores, such as Michaels, sell an inexpensive cutter just for styrofoam. I tried with a knife, and a lot of "crumbs"

Sorelle Posted 3 Mar 2011 , 5:48am
post #3 of 9

The cleanest cut you'll get is from a "Hot Knife" you can find the at most craft stores for about 15-20.00 They are easy to use and you'll eliminate the mess.

dchockeyguy Posted 3 Mar 2011 , 2:37pm
post #4 of 9

Hot knife is the way to go. It is basically a heated wire used to cut through. A blade is going to give you a messy cut.

mom2spunkynbug Posted 3 Mar 2011 , 3:50pm
post #5 of 9

I have a hot knife that I cut 1/2" thick foam coard board with - is that what you're talking about? How will I be able to cut through an 8" dummy with that?


cutelove Posted 3 Mar 2011 , 4:30pm
post #6 of 9

you can use a electric knive

prettypixies Posted 10 Mar 2011 , 4:59pm
post #7 of 9

I just watched Ultimate Cake Off and a guy on there just heated a frosting spatula with flame and used that. The judges were impressed, lol. I'd try that before I spent unnecessary $ on something fancy.

teri10309 Posted 13 Aug 2014 , 6:40pm
post #8 of 9

Cutting styrofoam is easy, just heat a knife on the burner of a stove and that's it.  I've bought those hot knives at the craft stores and they break all the time.  this is the easiest method.  

ropalma Posted 14 Aug 2014 , 2:13pm
post #9 of 9

I used an electric knife

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