{"id":74287,"date":"2026-08-21T09:04:58","date_gmt":"2026-08-21T14:04:58","guid":{"rendered":"https:\/\/can.wrmeadows.com\/?p=74287"},"modified":"2026-08-25T14:10:11","modified_gmt":"2026-08-25T19:10:11","slug":"waterstop-hpw-canada-hydrophilic-swell-strip","status":"publish","type":"post","link":"https:\/\/can.wrmeadows.com\/en-ca\/waterstop-hpw-canada-hydrophilic-swell-strip\/","title":{"rendered":"WATERSTOP HPW"},"content":{"rendered":"<p><a name=\"ds\"><\/a><\/p>\n<h3 class=\"section\">Product Data Sheet<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/hdgreen.jpg\" alt=\"Product Data, W. R. MEADOWS\" width=\"678\" height=\"150\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<table border=\"0\" width=\"100%\" cellspacing=\"2\" cellpadding=\"2\">\n<tbody>\n<tr>\n<td width=\"10%\"><strong><a href=\"https:\/\/can.wrmeadows.com\/data-sheets\/ca\/#0330\">03 30 00<\/a><br \/>\n<a href=\"https:\/\/can.wrmeadows.com\/data-sheets\/ca\/#071616\">07 16 16<\/a><br \/>\n<\/strong><\/td>\n<td width=\"24%\">\n<p align=\"RIGHT\">DATA SHEET 5128-001<\/p>\n<\/td>\n<td width=\"17%\"><a href=\"https:\/\/can.wrmeadows.com\/data\/5128-001.pdf\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/pdfclick.gif\" alt=\"\" width=\"119\" height=\"23\" border=\"0\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>WATERSTOP HPW<br \/>\nHydrophilic Swell Strip<\/strong><\/p>\n<p><strong>DESCRIPTION<\/strong><\/p>\n<p>WATERSTOP HPW is a hydrophilic swell strip composed of synthetic rubber with excellent swelling capabilities.\u00a0 It retains its own shape after wet-drying cycles and is intended for creating watertight sealing of non-moving construction joints.\u00a0 WATERSTOP HPW will provide superior performance over the service life of the structure.<\/p>\n<p><strong>USES<\/strong><\/p>\n<p>WATERSTOP HPW can be installed both vertically and horizontally.\u00a0 It is used to seal non-moving construction joints against water migration in concrete and reinforced concrete construction, including concrete footings, walls, floors, tunnels, and parking and plaza decks.\u00a0 The waterstop is also used to seal around pipes and other penetrations.\u00a0 WATERSTOP HPW has superior performance up to 6 bar (87 psi) water pressure.<\/p>\n<p><strong>FEATURES\/BENEFITS<\/strong><\/p>\n<ul>\n<li>Provides both extreme and delayed free-swell properties.<\/li>\n<li>Provides additional strength and structure.<\/li>\n<li>Good chemical resistance and swelling capability in high alkaline environments.<\/li>\n<li>Excellent re-swelling performance during wet\/dry cycling.<\/li>\n<li>Provides controlled swelling.<\/li>\n<\/ul>\n<p><strong>PACKAGING<\/strong><\/p>\n<p>Roll size:<br \/>\n20 mm x 5 mm x 10 m (3\/4&#8243; x 1\/4&#8243; x 33&#8242;)<br \/>\nFive Rolls per Carton<\/p>\n<p><strong>STORAGE AND HANDLING<\/strong><\/p>\n<p>Protect from moisture.\u00a0 Store indoors on skid or pallet. Storage temperature is -25\u02da to 75\u02da C.<\/p>\n<p><strong>APPLICATION<\/strong><\/p>\n<p><strong>Surface Preparation \u2026 <\/strong>Ensure surfaces are structurally sound, dry, free from protrusions, debris and compounds detrimental to adhesion.\u00a0 Fill minor cracks, voids, and depressions with <a href=\"https:\/\/can.wrmeadows.com\/en-ca\/waterstop-liquid-hpw-canada-polyurethane-hydrophilic-waterstop\/\">WATERSTOP LIQUID HPW<\/a> prior to installation of WATERSTOP HPW.<\/p>\n<p><strong>Application Method \u2026 <\/strong>WATERSTOP HPW is intended for use on vertical and horizontal construction joints and should be recessed a minimum of 76 mm (3\u201d) from outside surfaces.\u00a0 Ensure all ends are firmly butted together.<\/p>\n<p>For rough concrete, apply WATERSTOP LIQUID HPW to fill voids and provide additional adhesion to the concrete while preventing water or concrete from seeping under WATERSTOP HPW.<\/p>\n<p>For troweled smooth surfaces, two attachment methods are available.<\/p>\n<ul>\n<li>Nails\/Fasteners: Attach WATERSTOP HPW with a washer nail [25 mm (1\u201d) shank] with washer [15 &#8211; 23 mm (5\/8\u201d -13\/16\u201d)]. Tapcon fasteners are recommended.<\/li>\n<li>WATERSTOP LIQUID HPW: Lay a 3 &#8211; 6 mm (1\/8\u201d &#8211; 1\/4\u201d) bead of WATERSTOP LIQUID HPW along the joint.\u00a0 Surfaces to receive the WATERSTOP HPW cannot have protrusions greater than 13 mm (1\/2\u201d).\u00a0 Press WATERSTOP HPW into uncured WATERSTOP LIQUID HPW and nail every 381 mm (15\u201d) on center.\u00a0 Attach WATERSTOP HPW with a washer nail [22 mm (1\u201d) shank] with washer [15 &#8211; 23 mm (5\/8\u201d -13\/16\u201d)].\u00a0 Butt ends for a continuous application.<\/li>\n<\/ul>\n<p><strong>PRECAUTIONS<\/strong><\/p>\n<p>Keep WATERSTOP LIQUID HPW; protect from exposure to the elements.<\/p>\n<p><strong>MASTERFORMAT NUMBER AND TITLE<\/strong><\/p>\n<p>03 30 00 \u2013 Cast-In-Place Concrete<br \/>\n07 16 16 \u2013 Crystalline Waterproofing<\/p>\n<table class=\"table\">\n<tbody>\n<tr>\n<td width=\"317\"><strong>Property<\/strong><\/td>\n<td width=\"338\"><strong>WATERSTOP HPW Results<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"317\">Color<\/td>\n<td width=\"338\">Green<\/td>\n<\/tr>\n<tr>\n<td width=\"317\">Volume expansion in potable water<\/td>\n<td width=\"338\">500%<\/td>\n<\/tr>\n<tr>\n<td width=\"317\">Volume expansion in concrete water (High alkalinity)<\/td>\n<td width=\"338\">400%<\/td>\n<\/tr>\n<tr>\n<td width=\"317\">Hardness, Shore A<\/td>\n<td width=\"338\">35<\/td>\n<\/tr>\n<tr>\n<td width=\"317\">Tensile Strength<\/td>\n<td width=\"338\">2 MPa (290 psi)<\/td>\n<\/tr>\n<tr>\n<td width=\"317\">Elongation<\/td>\n<td width=\"338\">&gt;400%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>2026-08<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/foot-can.jpg\" alt=\"\" width=\"640\" height=\"98\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/can.wrmeadows.com\/pics\/footer-can.jpg\" alt=\"warranty\" width=\"614\" height=\"212\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>WATERSTOP HPW is a hydrophilic swell strip designed to help seal non-moving construction joints in concrete. When exposed to water, it expands to help block water migration at footings, walls, floors, tunnels, plaza decks, parking decks, and around penetrations such as pipes. Its synthetic rubber composition is made to maintain shape through wet-dry cycles, provide controlled swelling, and perform in high-alkaline concrete environments.<\/p>\n","protected":false},"author":1,"featured_media":74289,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":"","jetpack_post_was_ever_published":false},"categories":[17857,5578],"tags":[],"class_list":["post-74287","post","type-post","status-publish","format-standard","has-post-thumbnail","category-building-envelope-en-ca","category-waterstops-en-ca","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>WATERSTOP HPW (Canada) - Hydrophilic Swell Strip - W. 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