Cutting polycarbonate corflute

[Charles in Aus.]

I am building a small roof cover over some equipment and using polycarbonate corflute sheeting .
I need to trim it along the length , it's been decades since I worked with this material. Memory suggests a utility knife but I'm not sure . Dimensions are tight to the size so I have no room or waste to practice cut .
Any tips please ?

 

[showcrop]

It has been decades since for me as well, but my best recollection is utility knife. I remember it being a little difficult to steer the knife so a guide would probably be a good idea.

 

[RedMF40]

I’d use a circular saw with fine-toothed blade. Never cut this material, however. I am cutting quarter-inch sheets of clear acrylic with both a band saw and circular saw. Slow-going but it’s cutting the plastic without breaking it apart.

 

[Janicholson]

I am building a small roof cover over some equipment and using polycarbonate corflute sheeting .
I need to trim it along the length , it's been decades since I worked with this material. Memory suggests a utility knife but I'm not sure . Dimensions are tight to the size so I have no room or waste to practice cut .
Any tips please ?

A plastic cutter utility blade is perfect. They look like a hook with an edge that cuts when pulled. You can scribe 50% then snap, or cut through full depth. 60 grit open coat silicon carbide paper can smooth cut edges. Jim

 

[Charles in Aus.]

Thanks for the replies all .
I had the opportunity to trial a small cut at one corner as I realised that a notch needed to be made to clear a vent pipe .
The utility knife ( usually referred to as a Stanley Knife here ) , cut it easily without shattering . No need for the hooked blade Jim , I have them here at home but they are almost exclusively used on carpet and vinyl .
The double skin and thin upright void walls make a blade a risky prospect , it would probably be fine but in the absence of any large scrap pieces to try it on I'm loathe to risk it .

 

[chuckthin]

A plastic cutter utility blade is perfect. They look like a hook with an edge that cuts when pulled. You can scribe 50% then snap, or cut through full depth. 60 grit open coat silicon carbide paper can smooth cut edges. Jim

We cut a lot of plastic in a sign shop. The hook with a chisel edge cut faster and with less pressure. The kerf was as wide as the blade.

 

[Janicholson]

Thanks for the replies all .
I had the opportunity to trial a small cut at one corner as I realised that a notch needed to be made to clear a vent pipe .
The utility knife ( usually referred to as a Stanley Knife here ) , cut it easily without shattering . No need for the hooked blade Jim , I have them here at home but they are almost exclusively used on carpet and vinyl .
The double skin and thin upright void walls make a blade a risky prospect , it would probably be fine but in the absence of any large scrap pieces to try it on I'm loathe to risk it .

If it is working, use it ! I refer to a different blade it is hooked, but not for carpet, it is a chisel edged tool for scoring plastic. Jim

 

[Charles in Aus.]

If it is working, use it ! I refer to a different blade it is hooked, but not for carpet, it is a chisel edged tool for scoring plastic. Jim

I've not seen or heard of these Jim . Time to visit our version of Home Depot and look for them .