Bentonite Swelling Rubber Sheet  Flexible Swellable Mat for Large Area Waterproofing

Product Overview This swellable rubber sheet incorporates bentonite and elastomeric materials for flexible large-area waterproofing, suitable for foundation slabs, subways, and lift wells.

Features Swellable bentonite core inside elastic rubber Flexible to accommodate surface irregularities Applied under slabs and vertical walls Sheet-based application simplifies labor.

Technical Specifications Material: Bentonite + modified SBR rubber Sheet Size: 1m × 5m (or custom) Expansion: 5–8x thickness in contact with water Thickness: 5mm–10mm Tensile Strength: ≥ 2.8 MPa.

Applications Foundation base slab waterproofing Substructure waterproofing membranes Metro station platforms Lift and sump pit lining.

Customization Options Sheet size or roll length Bonded geotextile layer optional Custom logo printing Folded shipping packaging.