{"id":36179,"date":"2026-02-23T14:07:47","date_gmt":"2026-02-23T14:07:47","guid":{"rendered":"https:\/\/cortartec.net\/produto\/juntas-hidro-expansivas-de-bentonite\/"},"modified":"2026-05-13T14:20:20","modified_gmt":"2026-05-13T14:20:20","slug":"bentonite-water-swelling-seals","status":"publish","type":"product","link":"https:\/\/cortartec.net\/en\/produto\/bentonite-water-swelling-seals\/","title":{"rendered":"Bentonite water-swelling seals"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text css=”” woodmart_inline=”no” text_larger=”no”]<\/p>\n

Hydro-expansive joints for waterproofing construction joints<\/h2>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/4″][vc_single_image image=”37295″ img_size=”full” alignment=”center” css=”” parallax_scroll=”no” woodmart_inline=”no”][\/vc_column][vc_column width=”1\/4″][vc_single_image image=”37296″ img_size=”full” css=”” parallax_scroll=”no” woodmart_inline=”no”][\/vc_column][vc_column width=”1\/4″][vc_single_image image=”37297″ img_size=”full” alignment=”center” css=”” parallax_scroll=”no” woodmart_inline=”no”][\/vc_column][vc_column width=”1\/4″][\/vc_column][\/vc_row][vc_row][vc_column]\t\t

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COL 010011<\/strong><\/td>\nSize: 25 x 20 mm, color: black Box of 30 m (6 rolls of 5 m each) Water column with pressure up to 50 m<\/td>\n1 box<\/td>\n36 boxes per pallet<\/td>\n22.80 kg per box<\/td>\n<\/tr>\n
COR 010012<\/b><\/td>\nMASTERSTOP LONG TIME Coated bentonite seal Size: 25 x 20 mm, color: black Box 30 m (6 rolls of 5 m each) Water column pressure up to 50 m<\/td>\n1 box<\/td>\n36 boxes per pallet<\/td>\n23.00 kg<\/td>\n<\/tr>\n
COR 010020<\/b><\/td>\nSize: 20 x 15 mm, color: green Box of 30 m (6 rolls of 5 m each) Water column pressure up to 20 m<\/td>\n1 box<\/td>\n36 boxes per pallet<\/td>\n14.30 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\r\n\t\t[\/vc_column][\/vc_row][vc_row][vc_column]\t\t
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Hydro-expansive bentonite joints for confined waterproofing<\/h2>\n\t\t<\/div>\r\n\t\t[\/vc_column][\/vc_row][vc_row][vc_column width=”1\/4″][vc_single_image image=”37298″ img_size=”full” css=”” parallax_scroll=”no” woodmart_inline=”no”][\/vc_column][vc_column width=”1\/4″][vc_single_image image=”37299″ img_size=”full” css=”” parallax_scroll=”no” woodmart_inline=”no”][\/vc_column][vc_column width=”1\/4″][\/vc_column][vc_column width=”1\/4″][\/vc_column][\/vc_row][vc_row][vc_column]\t\t
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COR 010016<\/strong><\/td>\n\n

Size: 15 x 10 mm, color: green<\/p>\n

Box of 90 m (9 rolls of 10 m each)<\/p>\n<\/td>\n

1 box<\/td>\n36 boxes per pallet<\/td>\n22.80 kg per box<\/td>\n<\/tr>\n
COR 010017<\/b><\/td>\n\n

Size: 20 x 10 mm, color: black<\/p>\n

Box of 54 m (9 rolls of 6 m each)<\/p>\n<\/td>\n

1 box<\/td>\n36 boxes per pallet<\/td>\n23.00 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\r\n\t\t\t\t
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CORTARTEC MASTERSTOP (swelling) bentonite-based hydro-expansive waterstops exhibit hydrophilic behavior. They consist of expandable fibers that swell to up to 16 times their original size upon contact with water or moisture, thereby sealing concrete joints and filling voids, cracks, and irregularities. Since the joints are hydro-expansive, it is essential to keep them dry during concrete placement, so they should be applied as close as possible to that time. Hydro-expansive bentonite waterstop joints are easily applied by bonding them to the concrete surface using a COR POWER adhesive designed for this purpose or, alternatively, with a COR SWELLING steel mesh profile nailed to the concrete using hand-driven nails or a nail gun. They should be positioned at the center of the concrete reinforcement.<\/p>\n\t\t<\/div>\r\n\t\t[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Technical Data Sheet<\/a><\/strong><\/span>
\nDWG<\/a><\/strong><\/span><\/p>\n","protected":false},"featured_media":36180,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[294],"product_tag":[],"class_list":["post-36179","product","type-product","status-publish","has-post-thumbnail","product_cat-waterstop-gaskets","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nBentonite water-swelling seals - Cortartec | Equipamentos para a constru\u00e7\u00e3o civil<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cortartec.net\/en\/produto\/bentonite-water-swelling-seals\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bentonite water-swelling seals - Cortartec | Equipamentos para a constru\u00e7\u00e3o civil\" \/>\n<meta property=\"og:description\" content=\"Technical Data Sheet DWG\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cortartec.net\/en\/produto\/bentonite-water-swelling-seals\/\" \/>\n<meta property=\"og:site_name\" content=\"Cortartec | Equipamentos para a constru\u00e7\u00e3o civil\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-13T14:20:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cortartec.net\/wp-content\/uploads\/2026\/02\/junta-bentonita-cortartec.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"278\" \/>\n\t<meta property=\"og:image:height\" content=\"194\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cortartec.net\\\/en\\\/produto\\\/bentonite-water-swelling-seals\\\/\",\"url\":\"https:\\\/\\\/cortartec.net\\\/en\\\/produto\\\/bentonite-water-swelling-seals\\\/\",\"name\":\"Bentonite water-swelling seals - 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