Waterproofing and Leak Sealing Methods

1. Grouting method

• OverviewGrouting methods include high-pressure injection and low-pressure injection, suitable for fine cracks to large cracks in concrete, with excellent treatment results.

• ApplicationFor cracks in basement garages, especially those hard-to-reach fine cracks, grouting can penetrate deep into the cracks to form a solid waterproof layer.

• Surface coatingFor narrow and shallow cracks where material is difficult to inject, as well as cracks that are stable and not leaking or cracking.

• Surface补贴Utilize geomembranes or other waterproof sheets for large-scale water leakage (such as honeycomb surfaces) or situations where the exact leakage location is difficult to pinpoint, for effective waterproofing and leak prevention.

• OverviewIncluding surface coating and surface patching methods, suitable for crack treatment in various situations.

• Applied：

• OverviewDirectly fill cracks with patching materials (such as epoxy resin), commonly used for wider cracks.

• AppliedFor cracks wider than 0.4mm, or when debris in the cracks makes grouting difficult, filling methods offer an effective solution.

• Waterproof PaintPolyurethane coatings, with low-temperature flexibility, self-healing properties, and excellent adhesion, can be applied to floors and walls to enhance waterproofing capabilities.

• Waterproof membraneSBS modified asphalt waterproof membranes and self-adhesive waterproof membranes, suitable for large-scale laying, forming a sturdy waterproof layer.

• OverviewFor larger cracks or seams, use an elastic sealant for repairs, which can accommodate minor movements of the floor or wall.

• ApplicationSeal joints between the garage floor and walls, and pipe penetrations with elastic sealant.

• OverviewFor larger damaged areas, use cement mortar for repair, forming a solid patch layer.

• ApplicableWhen repairing damaged floors or walls, first clean the damaged area thoroughly, then apply cement mortar and smooth it out.