{"product_id":"ardex-stb-sta-waterproofing-tape","title":"Ardex STB\/STA Waterproofing Tape","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor securing critical transitions at drains, penetrations, junctions, and joints prior to applying waterproofing membranes, STB\/STA Waterproofing Tape provides a high-adhesion, self-adhesive butyl barrier. The tape is highly malleable to conform to complex physical detailing, ensuring a watertight seal on substrates such as concrete, screed, render, PVC, AAC blocks, and fibre-cement sheet.\u003c\/p\u003e\n\n \u003ch3\u003eHow it works\u003c\/h3\u003e\n \u003cp\u003eThe tape features a dual-layer design to bridge structural joints and transition zones. The self-adhesive butyl rubber underside bonds directly to the prepared substrate without separate adhesives, while the top polypropylene fleece surface provides an optimal mechanical key for subsequent liquid applied membranes and coatings. It acts as a dedicated bond-breaker, detailing strip, or liquid transition zone, and is compatible with ARDEX WPM 002, ARDEX WPM 909, ARDEX WPM 155 Rapid Plus, and ARDEX Weldtec membranes.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e1mm thickness:\u003c\/strong\u003e Low-profile build-up that prevents thick, raised edges under the final tiling or coating layer.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e115N\/50mm longitudinal \/ 100N\/50mm transverse tensile strength:\u003c\/strong\u003e High mechanical resistance (tested to EN 12311-1) to withstand structural movement across junctions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e22N\/cm peel adhesion:\u003c\/strong\u003e Aggressive bond strength (tested to ASTM D 1000) to maintain a secure perimeter seal on difficult substrates like PVC and concrete.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e0ºC to 40ºC application range:\u003c\/strong\u003e Practical installation window, with cold-weather adjustments using a heat gun to ensure secure initial tack.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e-40ºC to 100ºC service temperature:\u003c\/strong\u003e Extreme thermal stability, allowing use in both frozen external environments and high-temperature solar-exposed junctions.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eMust not be used as a standalone waterproofing product; it must be overcoated with an approved ARDEX membrane.\u003c\/li\u003e\n \u003cli\u003eMust not be left permanently exposed to UV light.\u003c\/li\u003e\n \u003cli\u003eDo not puncture or damage the tape prior to or during the application of subsequent ARDEX membranes.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cp\u003eSTB\/STA Waterproofing Tape is suitable for both internal and external detailing work on the following substrates:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eConcrete, screed, and render\u003c\/li\u003e\n \u003cli\u003eFibre-cement sheet and floor sheeting materials\u003c\/li\u003e\n \u003cli\u003ePVC pipes and penetrations\u003c\/li\u003e\n \u003cli\u003eAAC (autoclaved aerated concrete) blocks\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eInstallation\u003c\/h3\u003e\n \u003cp\u003eBefore applying the tape, prepare all surfaces by mechanical methods and vacuum cleaning to remove all dirt, dust, curing compounds, oils, grease, and surface sealers. Ensure the surface is sound, clean, dry, and free from sharp edges.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePriming:\u003c\/strong\u003e Concrete and other porous substrates must be primed with an appropriate ARDEX primer before installing the tape. AAC blocks require several coats of ARDEX WPM 265 or \u003ca href=\"\/products\/ardex-multiprime\"\u003eARDEX Multiprime\u003c\/a\u003e.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Remove the release paper and press firmly onto the substrate. ARDEX recommends using the ARDEX Brass Roller and ARDEX Small Hand Roller to ensure uniform adhesion and to roll out all edges.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOverlapping:\u003c\/strong\u003e Maintain a minimum 50mm overlap at all tape end-to-end joins.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCold-weather installation:\u003c\/strong\u003e In cold environments, carefully warm the underside of the tape and the prepared substrate using a heat gun on a low setting to improve initial adhesion.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eSystem components\u003c\/h3\u003e\n \u003cp\u003eThe tape is supplied in two formats to suit different detailing jobs:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eARDEX STB Tape:\u003c\/strong\u003e 75mm x 15m roll, practical for linear joint runs, wall-to-floor junctions, and hob connections.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eARDEX STA Tape:\u003c\/strong\u003e 40cm x 2.4m sheet, suitable for cutting custom patches, large drains, and complex penetration collars.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ardex","offers":[{"title":"Default Title","offer_id":46780433170624,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/ardex-stb-tape.png?v=1758244547","url":"https:\/\/adheseal.com.au\/products\/ardex-stb-sta-waterproofing-tape","provider":"Adheseal","version":"1.0","type":"link"}