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Posted

I have to cut 1" hdpe bathroom partition panels. Will any plastics blade work or what's best?

 

My current plan is just cutting with a circular saw, will probably use a straight edge as well. The finished edge quality doesn't need to be perfectly smooth, it won't be exposed. 

 

 

 

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Posted

Diablos non-ferrous metal circ blade is good for plastics, if your looking for a little less expensive blade the CMT brand has a similar blade


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Posted

The best cut in plastics is achieved by rough cutting with a circular saw, then using a router with a straight bit to bring to final size. It's an extra step, but the quality of the cut is about perfect, with zero chip out or breakage.
That's my experience anyway...

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Posted

We use Amana blades for cutting Acrylic and Lexan  on table saws and chop saws. https://www.amanatool.com/products/saw-blades/non-ferrous-saw-blades.html

 

I cut a bunch of 1in acrylic recently with a festool track saw, it was then finished by our CNC dept. The Track saw cuts were as straight as can be though. The sheets were 6x8, so I was cutting them to fit onto the CNC machines for the circular shape they needed for the final cuts.

 

I'm not familiar with HDPE though. A non ferrous blade should do the trick, just watch for heat build up.

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Posted

Thanks for the input guys. 

 

I picked up a diablo 7 1/4" non ferrous blade. I ended up not needing thoe.

 

As I got to there one of the other guys said he had a Dewalt trex decking blade. We sort of looked at it like hmm this might work. With a extra piece we made a test cut. The first cuts were good. Later in the day the blade got dull. It then got really dull an left melted plastic on the side. The last 3 panels we beveled the edges with my angle grinder an wire brush. If we didn't remove the burr it would not of slid into the mounting channel. 

 

I would normally like to be confident in my tools an don't use dull blades. It was a volunteer job an the one volunteer had a extra blade laying around his garage. Didn't see the point in spending 50 bucks on a tight budget. 

 

 

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