Star Leak Proof - is a low viscous, injection grout composed of PU base formulated to be placed by free flow under gravity, or can be injected using a suitable hand or mechanical pump. The injection grouting system provides rapid strength gain and excellent penetration due to low viscosity, which helps the concrete obtain mechanical properties several times that of premium concre... https://starshieldpaints.com/pages/star-leak-proof-pu-based