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Product Resources

Underseal® Blindside™ Membrane

Underseal® Blindside™ Membrane is a 73 mil, pre-concrete pour, strong sheet membrane waterproofing with a thick, cross-laminated, high-density polyethylene (HDPE) backing, laminated to a thick layer of proprietary waterproofing adhesive compound integrated into a nonwoven geotextile fabric.   

Underseal® Blindside™ Membrane is used as a waterproofing membrane where vertical, positive-side waterproofing is required, but access to the positive side is impossible due to the soil retention system.  Once the concrete is poured against the Blindside™ membrane, the concrete cures and a mechanical bond forms to secure the concrete to the membrane.  Also, subsequent to concrete placement, cold flow of the waterproofing compound will take place and an adhesive bond will be added to the mechanical bond given by the fibers.  With both a mechanical and adhesive bond, the concrete will be tightly sealed and bonded to the membrane, creating superior protection against moisture intrusion. 73 mil Underseal® Blindside™can also be used in certain horizontal applications.



606 TapeHigh strength double-sided tape comprised of rubberized asphalt more detail
650 LT Liquid AdhesiveUsed to prime all structural concrete, masonry, insulation or wood surfaces prior to membrane installation. more detail
California SealantUsed to prime structural surfaces on which waterproofing membranes will be applied more detail
Detail Sealant PW™VOC./HAPS free high performance solvent-free sealant more detail
LM-95Two-component fast cure urethane waterproofing membrane more detail
Poly CoverPreformed dome shaped tie back cover made with heavy duty, high impact ABS plastic more detail
Polyflow® 15 / 15PPrefabricated geocomposite vertical use drainboard with a compressive strength of 15,000 psf more detail
Totalflow™High Volume Water Removal System more detail
Underseal® Fabric TapeUse around pipe penetrations and at end laps for patching damaged areas of the membrane more detail
Underseal® Inside Corner BootTo be applied in the inside corner to reinforce and seal the corners of the Underslab membrane more detail
Underseal® Outside Corner BootFor use on the outside corners to reinforce and seal the Underslab membrane more detail
Underseal® Pit Top Corner BootPreformed corner boot used to reinforce and seal the Underslab Membrane more detail