Description: OCFOAMTM Open Cell Polyurethane Backer Rod OCFoamTM is a an open-cell polyurethane foam backer rod used as a backing in concrete construction for elastomeric and other hot-pour and cold-applied sealants. OCFoam acts as a barrier, limits the depth of sealant required and prevents excessive sealant use. PERFORMANCE OCFoam helps sealants assume the optimum hour glass shape to prolong the sealant service life. It is commonly used in applications such as expansion and contraction joints, window glazing, curtain wall partitions, parking decks and bridge construction. Open-cell polyurethane foam is an inert material, and therefore, it is physically and chemically compatible with virtually all known hot-pour and cold-applied sealants including silicone and rubber asphalt. INSTALLATION Prior to installing OCFoam, the joints should be cleaned per the sealant manufacturer’s recommendations. Thoroughly remove any concrete form-release agents, curing compound reside, laitance or any foreign materials. To ensure a good sealant bond, joints must be clean and dry when the new sealant is installed. Air compressors used for this purpose must be equipped with traps for removal of oil and moisture. Install OCFoam with a blunt tool at the depth recommended by the sealant manufacturer. Care should be taken to properly size OCFoam as it controls the depth of the sealant bead. It must be oversized (25-50%) to fit tightly into the joint and function as a bondbreaker to prevent back-side adhesion of the sealant. Sealant compatibility should be confirmed by the sealant manufacturer. Compatibility characteristics of sealants in contact with sealant backings can be determined by ASTM C 1087 test method. DESCRIPTION FORM: Round Foam Rod. TYPE: O - Per ASTM C 1330. Cylindrical, flexible sealant backings composed of opencell material. TEMPERATURE LIMITS: -60˚F to +500˚F. 5/8” (16 mm) x500'
Price: 35.99 USD
Location: Greenville, South Carolina
End Time: 2024-02-10T13:25:34.000Z
Shipping Cost: N/A USD
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Item Specifics
All returns accepted: ReturnsNotAccepted
Model: OCFoam
Country/Region of Manufacture: United States
MPN: Does Not Apply
Brand: Nomaco
