Anti-Fracture & Acoustic

Anti-fracture and acoustic systems sit beneath the tile to solve two problems that show up after a floor has been laid: hairline cracking from substrate movement, and noise transfer between levels or through party walls. Surtec's range covers both, with crack isolation membranes, soundproofing underlays, and the tapes needed to seal them properly.

ECB75 is a crack isolation membrane that absorbs minor movement in the substrate before it reaches the tile surface, reducing the risk of cracking over expansion joints or hairline substrate cracks. Strataflex waterproofing membrane and its matching seam tape combine crack isolation with a waterproofing layer, useful where a tiled area also needs to be watertight, such as balconies or wet areas. For noise control, Supersam 125 and Isodec are sound abatement underlays designed to dampen impact and airborne noise through tiled floors, suited to apartments, multi-level homes and commercial fit-outs where acoustic compliance matters.

These products are typically installed directly under the tile adhesive bed, over a prepared and compliant substrate. Because the right product depends on the substrate type, the level of movement expected, and whether waterproofing or acoustic compliance is required, it's worth checking individual product specifications or speaking with the Surtec technical team before ordering for a specific project.

Orders ship across New Zealand, Australia and the Pacific Islands, with free shipping on orders over $200.