Lets keep this as a nice database, submit your sites after these posts, and I will populate these with the plastics, thicknesses etc. In essence, I will do the hard work for you
PLEASE NOTE: This list is not exhaustive, I cannot guarantee that the products listed are safe for use, safe to laser cut, suitable for the listed application or as per the quick description here. You MUST refer to the linked item for details, and check with the supplier if you are under any doubt as to the suitablility. This list is a guide only, although care is taken to only list suitable materials, some inaccuracies may remain. Just because I have listed them, doesn't mean I have ordered from them, so cannot guarantee the authenticity of any supplier listed here.
Anyway, thats the disclaimer done!
Acrylic Plastic
Clear / Perspex
2mm Extruded - Trent Plastics|Bay Plastics
2mm Cast - Bay Plastics
2mm Unknown - Mindsets Online
3mm Extruded - HPC Laser|Trent Plastics|Bay Plastics
3mm Cast - 908 Ltd|Bay Plastics
3mm Unknown - Mindsets Online
4mm Extruded - Trent Plastics|Bay Plastics
4mm Cast - Bay Plastics
5mm Extruded - HPC Laser|Trent Plastics|Bay Plastics
5mm Unknown - Mindsets Online
5mm Cast - Bay Plastics
6mm Extruded - Trent Plastics
6mm Unknown - Mindsets Online
6mm Cast - Bay Plastics
8mm Extruded - Trent Plastics
8mm Unknown - Mindsets Online
8mm Cast - Bay Plastics
10mm Cast - HPC Laser|Bay Plastics
10mm Extruded - Trent Plastics
10mm Unknown - Mindsets Online
12mm Cast - Bay Plastics
12mm Extruded - Trent Plastics
15mm Extruded - Trent Plastics
15mm Cast - Bay Plastics
20mm Cast - Bay Plastics
25mm Cast - Bay Plastics
30mm Cast - Bay Plastics
Sunbed Grade Acrylic
2mm - Bay Plastics
3mm - Bay Plastics
5mm - Bay Plastics
Silk with One side anti-reflective
3mm Cast - Bay Plastics
5mm Cast - Bay Plastics
Opaque
3 &5 mm Cast in more colours than I can be bothered to list!- Bay Plastics
3 & 5mm Cast - Trent Plastics
3mm Black - Mindsets Online
3mm White - Mindsets Online
3mm Brown - Mindsets Online
IR Transmitting Black
3mm Cast - Bay Plastics
5mm Cast - Bay Plastics
10mm Cast - Bay Plastics
Tinted
3 & 5mm Cast - Trent Plastics
Almost Opaque White
3mm / 5mm / 10mm - 9% White Bay Plastics
3mm / 5mm / 10mm - 37% Opal Bay Plastics
3mm / 5mm / 10mm - 51% Opal Bay Plastics
3mm / 5mm / 10mm - 70% Opal Bay Plastics
Bundles
Mixed Pack - HPC Laser
Flourescent
3&5mm Neptune Blue - Bay Plastics
3&5mm Mars Red - Bay Plastics
3&5mm Lava Orange - Bay Plastics
3&5mm Helios Yellow - Bay Plastics
3&5mm Acid Green - Bay Plastics
Frosted
3mm in 27 different colours - Bay Plastics
There are some 5/10/15mm sheets in there, but not all colours available
Glass Look
3mm Cast - Bay Plastics
5mm Cast - Bay Plastics
6mm Cast - Bay Plastics
8mm Cast - Bay Plastics
10mm Cast - Bay Plastics
Live Edge
3mm Orange Edge - Mindsets Online
3mm Green Edge - Mindsets Online
3mm Blue Edge - Mindsets Online
Pearlescent
3mm Platinum - Bay Plastics
3mm Pearl - Bay Plastics
3mm Caramel Gold - Bay Plastics
5mm Caramel Gold - Bay Plastics
3mm Azure - Bay Plastics
Prismatic
3mm - Bay Plastics