*Correx*

features
waterproof, making it suitable for outdoor use (with appropriate support)
suitable for use with food
resistant to grease and many other chemicals
thicknesses: 2, 3, 3.5, 4, 5mm
correx is an extruded twinwall fluted/corrugated polypropylene sheet and offers efficient solutions to a wide variety of applications
it is a low cost option for both indoor and short term outdoor signs.
low-cost, lightweight yet rigid and shatterproof