{"id":983,"count":1,"description":"<strong>Joluka Swellable Waterstop<\/strong>\u00a0is a high-performance sealing solution for construction joints. It expands on contact with water, forming a reliable barrier that prevents water from passing through concrete. Builders use it in both vertical and horizontal applications, especially in static joints. However, it is not suitable for expansion joints.\r\n\r\nJoluka manufactures this waterstop using a blend of\u00a0<strong>sodium bentonite<\/strong>\u00a0and\u00a0<strong>butyl rubber<\/strong>, which ensures flexibility, durability, and consistent performance. When exposed to moisture, the material swells\u2014up to\u00a0<strong>250% in rainwater<\/strong>\u00a0and\u00a0<strong>150% in concrete water<\/strong>\u2014to fill cracks and voids, creating a watertight seal.\r\n\r\nEach roll measures\u00a0<strong>10 meters in length<\/strong>, with a cross-section of\u00a0<strong>20 mm by 10 mm<\/strong>, and comes in black. Joluka packages the product in\u00a0<strong>cartons of six rolls<\/strong>, making it easy to transport and store on-site.\r\n\r\nFor proper installation, apply the waterstop to a\u00a0<strong>clean, smooth concrete surface<\/strong>. Overlap joints by\u00a0<strong>5 to 10 cm<\/strong>\u00a0and ensure a\u00a0<strong>minimum concrete cover of 6 cm<\/strong>\u00a0on each side. This prevents premature swelling and ensures the seal remains intact. On vertical surfaces, secure the waterstop using\u00a0<strong>wire mesh and gun nails<\/strong>.\r\n\r\nThe product offers excellent chemical resistance and performs well in aggressive environments. It is\u00a0<strong>MFPA certified<\/strong>, contains no PVC, CFC, or HFC, and complies with\u00a0<strong>ECHA REACH<\/strong>\u00a0regulations. It is also free from substances of very high concern, making it safe for use in sustainable construction.\r\n\r\n<strong>Joluka Swellable Waterstop<\/strong>\u00a0is trusted for waterproofing basements, tunnels, water tanks, and retaining walls. It provides a\u00a0<strong>cost-effective, eco-friendly<\/strong>, and\u00a0<strong>long-lasting<\/strong>\u00a0solution that protects structures from water ingress and reduces maintenance needs.","link":"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/","name":"Swellable Waterstop","slug":"swellable-waterstop2","taxonomy":"product_cat","parent":851,"meta":[],"menu_order":0,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Swellable Waterstop<\/title>\n<meta name=\"description\" content=\"Joluka Swellable Waterstop expands on contact with water to seal concrete joints, offering durable and waterproofing for construction projects.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Swellable Waterstop\" \/>\n<meta property=\"og:description\" content=\"Joluka Swellable Waterstop expands on contact with water to seal concrete joints, offering durable and waterproofing for construction projects.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/\" \/>\n<meta property=\"og:site_name\" content=\"Joluka Manufacturing\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"CollectionPage\",\"@id\":\"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/\",\"url\":\"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/\",\"name\":\"Swellable Waterstop\",\"isPartOf\":{\"@id\":\"https:\/\/www.joluka.co.za\/construction\/#website\"},\"description\":\"Joluka Swellable Waterstop expands on contact with water to seal concrete joints, offering durable and waterproofing for construction projects.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/#breadcrumb\"},\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.joluka.co.za\/construction\/product-category\/waterproof-sheeting-chemicals\/swellable-waterstop2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.joluka.co.za\/construction\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Waterproof Sheeting &amp; 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