Powertray Case Ready Trays provide extraordinary rigidity, stiffness, and moisture resistance. Certification from Western Michigan University as fully repulpable and recyclable. Trays are available in white, yellow, rose, blue, black and natural kraft. Our paperboard is manufactured from 100% pure softwood and hardwood fiber from SFI and PEFC certified forests. All paperboards and coatings are FDA compliant (21 CFR, parts 170-189).