Foamseal Inc. of Oxford, Mich., has developed a spray elastomer for coating solid waste landfills, to prevent rainwater from leaching through. Foamseal claims the polyurea-based elastomer gels in three seconds and can be walked on in 30 seconds. It said the material is cost-competitive with traditional PVC or high density polyethylene sheet covers and allows more landfill capacity because of the reduced need for a clay cap.
Bayer Corp. of Pittsburgh supplies Mondur methylene diisocyanate, a component of the spray elastomer system, and helped fund a study of the system's efficiency.
Tel. (810) 628-2587.
Barrier film gives beef a fresher look
A peel-away oxygen barrier combines long shelf life and attractive appearance for beef packaged in a multilayer film developed by the Cryovac Division of W.R. Grace & Co. of Canada Ltd. of Mississauga, Ontario.
Lucerne Foods Ltd. of Calgary, Alberta, packages beef in the multilayer film and ships it to Safeway grocery stores. Store personnel peel off the top oxygen barrier, causing the beef to change color within minutes from brown to red, making it more appealing to consumers.
The Cryovac film was the gold winner in the distribution category for Packaging Association of Canada's biennial competition held in Toronto in September.
Tel. (905) 273-5656.
Rigid PU foam keeps camper trailer dry
Rigid polyurethane foam bonds and reinforces two ABS panels in a one-piece, leak-resistant roof for a camper trailer made by Fleetwood Enterprises Inc. of Riverside, Calif.
Fleetwood makes the roof at its Somerset, Pa., facility using a Baytherm low density PU foam system supplied by Bayer Corp. of Pittsburgh.
The ABS panels are placed in a match die mold and the foam system is injected between the panels. The construction cures in 20-30 minutes. Fleetwood makes the panels under license from composites technology firm Advance USA Inc. of East Haddam, Conn.
Tel. (412) 777-2000.