SikaFix HH+ is a hydrophobic, expanding, polyurethane, chemical grout ...
Hydrophobic, expanding, polyurethane, chemical grout. SikaFix® HH+ is a hydrophobic polyurethane foam grout that, when used with accelerator, is designed to stop water infiltration and fill voids outside a structure or joint and cracks in concrete structures. It may also be used in applications with high pressure flowing water.