Blueskin WP 200 Self-Adhesive Waterproofing Membrane
Uses Blueskin WP200 is designed for use as a self-adhered sheet waterproofing membrane in above or below grade applications. Principal application is on concrete foundation walls, plaza decks, tunnels, and parking decks in both vertical and horizontal orientations. Blueskin WP200 is an ideal membrane for use in interior applications such as mechanical rooms, laboratories and wet-rooms. Combined with Aquatac water based primer, offers excellent performance in ICF applications. Surface Preparation Acceptable substrates are cast-in-place concrete, precast concrete, wood, concrete block, and polystyrene insulation form foundations. Parging of concrete blocks is not required. All surfaces to receive Blueskin WP200 must be clean of oil, dust and excess mortar. Concrete surfaces must be smooth and without large voids, spalled areas or sharp protrusions. Concrete must be allowed to cure a minimum of 7 days and must be dry and free from frost before Blueskin WP200 is applied. Structural lightweight concrete must be cured 14 days. Where curing compounds are used, they must be clear resin based, without oil, wax or pigments. Prime substrate using Aquatac applied by spray or roller at a rate of 300ft ²/3.78L and allow to dry thoroughly before applying Blueskin WP200 . Primed surfaces not covered by membrane during the same working day must be reprimed. Application Refer to Blueskin WP200 Guide Specification for detailed application information. Joint and Crack Treatment: All cracks in concrete 1/16” to 1/8” wide are to be pre-treated with a flush application of Henry 925 BES Sealant filling crack. Alternately, apply a 6” wide strip of Blueskin WP200 centered over crack. Provide 3” end laps. Horizontal to vertical inside corner transition areas are to be pre-treated with an Henry 925 BES Sealant fillet extending ¾” vertically and horizontally from the corner. Apply a minimum 9” strip of Blueskin WP200 membrane centered at the joint. All outside corners are to be pre- treated with a minimum of 9” strip of Blueskin WP200 membrane centered at the joint. Drains: At drains, apply waterproofing membrane collar centered on drain and extend 6” beyond flange onto deck. Apply field membrane in full width centered over drain. Apply clamping ring in a 60-mil bed of 925 BES Sealant . Projections: Extend Blueskin WP200 membrane tight to projection and seal with 925 BES Sealant extending 2” along projection and 2” onto Blueskin WP200 membrane. Vertical Applications: Apply Blueskin WP200 waterproofing membrane to prepared substrate in lengths of 8’ or less. Provide 2 ½” laps at both sides and ends. Position for alignment and remove protective film. Press firmly into place. Promptly roll all laps with a counter top roller to effect seal. If more than one length is required on a vertical surface, apply a shingle fashion. Terminate membrane using 925 BES Sealant, termination bar, reglet or counter flashing as indicated. Refer to manufacturers standard details. All laps within 12” of 90 change in plane are to be sealed with 925 BES Sealant . Horizontal Applications: Apply Blueskin WP200 waterproofing membrane to prepared substrate beginning at the low point of the surface and working to the high point in a shingle fashion. Provide 2 ½” side and end laps. Roll membrane immediately over entire surface to ensure best seal. At all terminations and T-joints, seal laps using 925 BES Sealant . All laps within 12” of a 90 change in plane are to be sealed with 925 BES Sealant . For optimal adhesion on applications below 40°F, Blueskin WP200 waterproofing membrane should be applied within one hour of the primer application. Protection of Membrane Protection board and/or Henry DB Drain Boards are recommended over all below-grade Blueskin WP200 applications.
REVISION: 02/27/17
Henry Company 999 N. Sepulveda, Ste 800, El Segundo CA 90245-2754 Technical Services- Phone (800) 486-1278 – Email: techservices@henry.com www.henry.com
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