{"id":36344,"date":"2026-01-14T15:56:15","date_gmt":"2026-01-14T14:56:15","guid":{"rendered":"https:\/\/www.synthesia.com\/?p=36344"},"modified":"2026-02-12T16:13:52","modified_gmt":"2026-02-12T15:13:52","slug":"synthesia-technology-obtains-radon-certification-for-poliuretan-spray-s35-z-product","status":"publish","type":"post","link":"https:\/\/www.synthesia.com\/en\/synthesia-technology-obtains-radon-certification-for-poliuretan-spray-s35-z-product\/","title":{"rendered":"Synthesia Technology Obtains Radon Certification for Its Poliuretan Spray S35-Z Product"},"content":{"rendered":"<h2>The Most Advanced Radon Protection for Foundations<\/h2>\n<h3 data-start=\"224\" data-end=\"275\">Other Practical Advantages During Foundation Work<\/h3>\n<ul>\n<li data-start=\"277\" data-end=\"794\">Fast, seamless application \u2192 no tapes or overlaps required.<\/li>\n<li data-start=\"277\" data-end=\"794\">Closed-cell structure \u2192 foam seals perfectly around pipes, cables, etc.<\/li>\n<li data-start=\"277\" data-end=\"794\">Compressive strength \u2192 withstands slab and backfill loads (200 kPa).<\/li>\n<li data-start=\"277\" data-end=\"794\">Insulating capacity \u2192 \u03bb = 0.026 W\/mK; U-value = 0.13 with 200 mm thickness.<\/li>\n<li data-start=\"277\" data-end=\"794\">Time savings \u2192 radon protection and insulation in a single application.<\/li>\n<li data-start=\"277\" data-end=\"794\">Covers complex geometries without cutting \u2192 angles and irregularities handled with ease.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3 data-start=\"603\" data-end=\"627\">Documented Protection<\/h3>\n<p data-start=\"629\" data-end=\"807\">S35-Z polyurethane has been tested by an independent laboratory at the University of Cantabria, showing a radon diffusion coefficient of &lt; 1.0 \u00d7 10\u207b\u00b9\u00b3 m\u00b2\/s, which corresponds to:<\/p>\n<ul>\n<li data-start=\"811\" data-end=\"921\">5 times more airtight than radon barrier membranes on the market (0.1 mBq\/s with 50,000 Bq in the soil).<\/li>\n<li data-start=\"924\" data-end=\"1015\">20 times more airtight than standard products (0.4 mBq\/s with 50,000 Bq in the soil).<\/li>\n<li data-start=\"1018\" data-end=\"1086\">Poliuretan Spray S35-Z: 0.02 mBq\/s with 50,000 Bq in the soil.<\/li>\n<\/ul>\n<p data-start=\"1088\" data-end=\"1160\">Even with just 25 mm thickness, extremely low radon ingress is achieved.<\/p>\n<p>&nbsp;<\/p>\n<h3 data-start=\"1167\" data-end=\"1214\">An Alternative with Environmental Attributes<\/h3>\n<ol data-start=\"1216\" data-end=\"1553\">\n<li data-start=\"1216\" data-end=\"1253\">\n<p data-start=\"1219\" data-end=\"1253\"><strong>Contains recycled content (PET).<\/strong><\/p>\n<\/li>\n<li data-start=\"1254\" data-end=\"1288\">\n<p data-start=\"1257\" data-end=\"1288\"><strong>Uses renewable raw materials.<\/strong><\/p>\n<\/li>\n<li data-start=\"1289\" data-end=\"1376\">\n<p data-start=\"1292\" data-end=\"1376\"><strong>Polyol developed with blowing agents with very low Global Warming Potential (GWP).<\/strong><\/p>\n<\/li>\n<li data-start=\"1377\" data-end=\"1498\">\n<p data-start=\"1380\" data-end=\"1498\"><strong>Less waste and transport: the material expands 20\u201330 times its liquid volume, reducing packaging and transportation.<\/strong><\/p>\n<\/li>\n<li data-start=\"1499\" data-end=\"1553\">\n<p data-start=\"1502\" data-end=\"1553\"><strong>Solves multiple problems in a single application.<\/strong><\/p>\n<\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li data-start=\"1555\" data-end=\"1715\">Addresses <strong>moisture, radon, insulation, and airtightness<\/strong> with one product and one step.<\/li>\n<li data-start=\"1555\" data-end=\"1715\">Fewer work stages, shorter construction time, and reduced resource use.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The Most Advanced Radon Protection for Foundations.<\/p>\n","protected":false},"author":5,"featured_media":36343,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[15],"tags":[],"class_list":["post-36344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Synthesia Technology Obtains Radon Certification for Its Poliuretan Spray S35-Z Product - Synthesia<\/title>\n<meta name=\"description\" content=\"The Most Advanced Radon Protection for Foundations. 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