Alpine Waste & Recycling Resumes Corrugated Plastic Signs CampaignContentEmpire SignsVinyl WrapsCorrugated Plastic48 In X Ninety Six In X 0236 In Fluted Twin Wall Plastic Sheet 5DenverprintThis material is paper-based and represents an excellent alternative for corrugated plastic. It is made of recycled paper and on the finish of its useful life i