what’s the best way to cut sound deadener

I've never used it before, but I wanted to do my system right this time.  Whats the best thing to use to cut the stuff?

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"I'm Rick James bi***, enjoy yo' self Ah Ah Ah"
Dave Chappelle as Rick James

if your going to lay out dynomat or silencer i just lay out my sheet where i want to put them press them into place and then use a razor knife and trim the accordingly. I do all of this befor i remove the backing of course. Then i remove the backing lay it out smooth and then use a heat gun and roller to smooth it out the rest of the way to get a good then fit. Forms better also when you heat it up.

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Mecp Certified
Double check advice with your Meter.

if you use the xtreme watch out for edges will cut the heck out of you...!

 I  agree a sharp razor or utlity knife works quite well you also get the ability to work with the material better around difficult shaped areas.....

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one love