I am wanting to cut a large acrylic sheet to size what do you recommend to use for this was thinking of using my circular saw but wasn't sure what blade to use, I have been given a black and decker on a blade I have it says 140 mm and 12.7 mm and 32 teeth if any one can give me advise I would be grateful thanks
Hand saw, probably the best tool . A circular might work, but the tendency with power tools on acrylic sheet is for the cutter to actually melt the acrylic , which then closes up behind the cutter again. Using a hand sqw negates this because you just can't saw fast enough to melt the plastic.
This tutorial from http://home-building.wonderhowto.com/how-to/cut-perspex-acrylic-sheet-with-circular-jigsaw-261408/ may help
I use my TS55 but on 2mm you could just score it with a stanley knife and then snap it like a tile or glass.
Since it is only 2mm I would do the same as chippie244, with the exception of clamping the part you want to use between 2 timbers or other suitable materials to hand, to prevent splitting & or cracking. Tip: Always keep the protective plastic / covering on until all the cuts are finished.