Many customers have a question, what is the
difference between polycarbonate & PMMA?
Let us introduce to you the differences
1, Heat Resistance, Low Temperature
Resistance, Weather Resistance
PMMA is easy to soften when it reaches
70°C, and PC is 120°C. PC will be more resistant to high temperatures, and it's
operating range of temperature is -40 to 240°C, so PC operating temperature is
more widely in used.
2, Impact Resistance
Compared with same thickness, the impact
strength of PC is 30-50 times more than PMMA, 6mm thickness PC sheets can be
used as bulletproof material, 3mm thickness PC sheet cannot be broken by an
adult by hammering.
3, Flame Resistant, Fire Resistant
The PC is a flame-retardant material,
belonging to Class B flame retardant (UL94-V2 grade internationally), one of
self-extinguishing plastic, not easy to burn, and PMMA is not flame retardant.
4, Environment Friendly
PC belongs to environmentally friendly
plastic, and some physical properties of PMMA cannot be friendly to
5, Outdoor Yellowing
PMMA's outdoor product: 2-3 years will
begin to yellow, brittle crack.
PC outdoor product: 5 years will begin to
yellow. PC product based on normal use and maintenance, it's available for 10
polycarbonate is a kind of good choice of material for outdoor use.