Polycarbonate (PC) in Canadian Manufacturing

Polycarbonate in Canadian Manufacturing

Polycarbonate is the material engineers reach for when impact failure is unacceptable. Hockey rink board glass, factory machine guards, riot shields, security windows in convenience stores, headlamp lenses, and laptop housings all use PC because the alternatives — glass, acrylic, ABS — fail under impact in ways PC does not.

Sheet vs Resin — Two Different Markets

PC sheet (Lexan, Makrolon, Tuffak) is sold by plastics service centres for cut-to-size fabrication, machining, thermoforming, and bolt-up glazing. Standard sheet is 0.75 mm to 25 mm thick in clear, bronze, and grey tints. Multi-wall PC (twin-wall, multi-cell) is the standard greenhouse and skylight glazing material, available from any Canadian glazing distributor.

PC moulding resin and PC/ABS compounded grades feed injection-moulding shops producing electronics housings, automotive interior components, and consumer products. Pure PC moulds are cycle-time-sensitive (long cooling times due to the high Tg) and require dry resin (PC absorbs moisture and degrades during processing if not properly dried). PC/ABS blends reduce these processing challenges at the cost of optical clarity and a small reduction in impact strength.

Working With Canadian PC Shops

For sheet fabrication and machining, Modern Plastics, Industrial Plastics & Paints, and Laird Plastics stock nationwide. Most Canadian general-purpose plastics machining shops handle PC competently — the main caveat is heat buildup during machining, which causes crazing and surface damage. Use sharp tools, conservative feeds, and avoid coolant chemicals incompatible with PC (most water-based coolants are fine).

For injection moulding, southern Ontario carries the deepest PC and PC/ABS mould capacity, anchored by the automotive interior supply chain. Medical-device PC moulders are in the GTA, Quebec, and BC. For complex transparent optical PC parts (lenses, light pipes), several Canadian precision moulders specialise in optical-grade PC processing.

Get Matched to a Canadian PC Shop

Tell us the application — sheet fabrication, moulded part, machined component — and any spec constraints (UL rating, optical clarity, chemical exposure). We route to Canadian shops with the right PC processing experience.