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ADHESIVE <br />Seaman Corporation supplies Polyset® CR-20® polyurethane foam adhesive for installing Fleece Back <br />Membrane in authorized FiberTite Roofing Systems. CR-20 is a two component elastomeric polyurethane <br />designed to provide outstanding adhesive properties. <br />Product Data <br />Polyset® CR-20® <br />Polyurethane <br />Foam Adhesive <br />DESCRIPTION APPLICATION <br />Polyset CR-20 is used to adhere FiberTite Fleece <br />Back membranes to a variety of approved <br />substrates including polyisocyanurate <br />insulation board, gypsum based coverboards, <br />structural concrete and smooth bituminous <br />roofs. <br />Substrate Preparation: All surfaces to be bonded must be clean, dry and free of any debris that would interfere <br />with the proper application of the fleece back membrane. <br />CR-20 is a single surface adhesive. It is spray applied in a “Spatter Pattern” onto the roof, insulation or <br />coverboard by dispensing the adhesive in a spray pattern similar to the action required when hand watering <br />a flower bed. The spatter pattern should yield a heavily textured coating of approximately ¼” to ½” nominal <br />thickness height on the peaks of the spatter. <br />The seams of the membrane and factory selvedge edge must be protected from overspray of the CR-20. If <br />overspray does contaminate the seam area(s), immediately clean the seam area with acetone while the CR-20 <br />is still wet. <br />The bonding range for the CR-20 is approximately 1-10 minutes from the start of spraying and will vary <br />according to ambient as well as substrate temperature. The amount of substrate area that the CR-20 is <br />applied to ahead of the membrane should be monitored to prevent installing the membrane in dry adhesive. <br />Care must be taken, particularly in high temperature environments, (90°F and above) to insure that the CR-20 <br />has not dried or skinned over prior to embedding the fleece back membrane. <br />Refer to FiberTite Specifications for additional instruction in the use of CR-20. <br />Subject to the conditions of Approval for a roof covering <br />when installed as described in the current edition of the <br />Approval Guide. <br />These specifications are current as of the date of printing. <br />Revisions or additions may be issued periodically. <br />For a listing, presentation, and download of the most recent data, visit: <br />www.fibertite.com/document-library/product-data-sheets <br />For more information on FiberTite Systems <br />and accessories please call: <br />Seaman Corporation (800) 927-8578 <br />International (330) 262-1111 <br />www.fibertite.com <br />FiberTite® is a registered trademark of Seaman Corporation. <br />Polyset® & CR-20® are registered trademarks of ICP Adhesives and Sealants. <br />FTRDS31_04 <br />STORAGE & HANDLING <br />The “A” and “B” containers shall be stored <br />between 45°F and 95°F. The shelf life, at these <br />temperatures is 18 months from the date of <br />production. <br />The product temperature prior to application <br />shall be between 70°F and 90°F. The minimum <br />ambient and surface temperature shall be 40°F <br />and rising. <br />Temperatures outside the stated ranges may <br />affect the bonding range, dispensability and <br />overall performance of the product. <br />Cylinder Disposal: Disposable Cylinders shall <br />be disposed of in accordance with local, state <br />and federal regulations. Consult MSDS for more <br />information.