Count on IKO for the best in Bridge Deck Waterproofing Membranes. AquaBarrier™ FP is made by integrally bonding high-density, cross laminated polyethylene to SBS modified rubberized asphalt. AquaBarrier TG is manufactured from an inorganic reinforcing mat of high strength non-woven glass fibers that is coated with select SBS polymers and premium asphalt.