{"id":91974,"date":"2026-04-22T15:53:57","date_gmt":"2026-04-22T08:53:57","guid":{"rendered":"https:\/\/mcbifi-bauchemie.com\/?post_type=product&#038;p=91974"},"modified":"2026-04-22T16:33:02","modified_gmt":"2026-04-22T09:33:02","slug":"mc-hardener-300","status":"publish","type":"product","link":"https:\/\/mcbifi-bauchemie.com\/en\/products\/mc-hardener-300\/","title":{"rendered":"MC-Hardener 300"},"content":{"rendered":"<ul>\n<li><strong>PRODUCT DESCRIPTION:<\/strong><\/li>\n<\/ul>\n<p><span class=\"fontstyle0\">\u27a2 <\/span>Mode of action: <strong>MC-Hardener 300<\/strong> penetrates into concrete surfaces and forms with cement components silicate reaction surface, which cause an obvious reduction of porosity.<br \/>\n<span class=\"fontstyle0\">\u27a2 <\/span>Simultaneously <strong>MC-Hardener 300<\/strong> is used for the curing of concrete on interior surfaces.<\/p>\n<ul>\n<li><strong>PRODUCT PROPERTIES:<\/strong><\/li>\n<\/ul>\n<p><span class=\"fontstyle0\">\u27a2 Liquid, ready to use impregnation.<br \/>\n\u27a2 Hydrophobic, strengthening and dust binding impact.<br \/>\n\u27a2 Increases abrasion resistance of cement based surfaces.<br \/>\n\u27a2 Increases the pull off strength and the surface tensile strength of cement based surfaces.<br \/>\n\u27a2 Increases frost-thaw-salt resistance of cement based surfaces.<br \/>\n\u27a2 Certified according to EN 1504-2.<\/span><\/p>\n<ul>\n<li><strong>AREAS OF APPLICATION:<\/strong><\/li>\n<\/ul>\n<p><span class=\"fontstyle0\">\u27a2 Impregnation of alkaline, cement based surfaces, such as concrete and screed.<br \/>\n\u27a2 Impregnation of cement based industrial floorings.<br \/>\n\u27a2 Wet curing of indoor concrete and screed surfaces.<br \/>\n\u27a2 Principle 1 and 5, procedure 1.2 and 2<\/span><\/p>\n<ul>\n<li><strong>PRODUCT CHARACTERISTICS:<\/strong><\/li>\n<\/ul>\n<table style=\"height: 128px;\" width=\"1154\">\n<tbody>\n<tr>\n<td width=\"210\"><strong>Storage<\/strong><\/td>\n<td width=\"476\">Can be stored in cool and dry conditions for at least 12 months in original unopened packs.<\/td>\n<\/tr>\n<tr>\n<td width=\"210\"><strong>Color shade<\/strong><\/td>\n<td width=\"476\">Transparent.<\/td>\n<\/tr>\n<tr>\n<td width=\"210\"><strong>Packaging<\/strong><\/td>\n<td width=\"476\">30 kg canister(s) or 200 kg drum.<\/td>\n<\/tr>\n<tr>\n<td width=\"210\"><strong>Self-monitoring<\/strong><\/td>\n<td width=\"476\">EN ISO 9001.<\/td>\n<\/tr>\n<tr>\n<td width=\"210\"><strong>Packaging Disposal<\/strong><\/td>\n<td width=\"476\">Make sure single-use containers are completely empty. Ensure compliance with our information leaflet \u201cReturn of Emptied Transportation and Sale Packaging\u201d. We will be glad to send you this on request.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li><strong>APPLICATION NOTE:<\/strong><\/li>\n<\/ul>\n<p>\u27a2\u00a0<strong>Substrate preparation:<\/strong><br \/>\n&#8211; <strong>MC-Hardener 300<\/strong> can be applied on concrete and screed, as soon as the surface is trafficable.<br \/>\n&#8211; When applying <strong>MC-Hardener 300<\/strong> on existing or already used concrete surfaces, please note the information sheet of \u201cGeneral Application Advice for MC-Estripox &#8211; substrate and substrate preparation\u201d.<br \/>\n&#8211; It is not allowed, that oil containing substances, e.g. separating agents, after treatment agents and oils stay back on concrete surfaces.<br \/>\n&#8211; After dedusting of the substrate the surface has to be pre-wetted. For this spraying pumps, e.g. MC-Spezialspritze, or hoses can be used. Avoid puddle formation!<br \/>\n&#8211; The application of <strong>MC-Hardener 300<\/strong> can start after having matt damp surface.<\/p>\n<p>\u27a2\u00a0<strong>Application:<\/strong><br \/>\n&#8211; Apply<strong> MC-Hardener 300<\/strong> evenly (e.g. with MC-Spezialspritze spraying pump, short coat roller or directly poured out of the package), minimum 200 g\/m\u00b2.<br \/>\n&#8211; <strong>MC-Hardener 300<\/strong> is easily worked into the surfaces, crosswise brushing, e.g. hard brush. The consumption and penetration ability of <strong>MC-Hardener 300<\/strong> depends on the porosity of the substrate. If necessary apply in several working steps.<br \/>\n&#8211; After 20 &#8211; 45 minutes a soapy, slippery surface appears, the silicate reaction begins. During this reaction time the surface has to be kept wet, e.g. fogging with water without washing up the material. If <strong>MC-Hardener 300<\/strong> is used as after-wet-treatment, the surface has to be kept wet for minimum 24 hours.<\/p>\n<p>\u27a2\u00a0<strong>Removal:<\/strong> To remove the soapy compound apply once more water on the surface, screed the surplus material with a rubber lip or wash it up with a water hose. Repeat this procedure until concrete has a matt finish and no slippery sites exists. If necessary take other actions of after treatments.<\/p>\n<p>\u27a2\u00a0<strong>Application on bond screeds:<\/strong> If <strong>MC-Hardener 300<\/strong> is used to improve the tensile strength of bond screeds, we recommend to rough up the surface (e.g. shot peening) and to wait minimum one week before revision. MC-Estripox protect is used as bonding layer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-91978\" src=\"https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-450x450.jpg\" alt=\"\" width=\"450\" height=\"450\" srcset=\"https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-450x450.jpg 450w, https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-1024x1024.jpg 1024w, https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-240x240.jpg 240w, https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-768x768.jpg 768w, https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-1536x1536.jpg 1536w, https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-2048x2048.jpg 2048w, https:\/\/mcbifi-bauchemie.com\/wp-content\/uploads\/2026\/04\/MC-Hardener-300_30kg-600x600.jpg 600w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/p>\n<p><strong>Impregnating improvement of cement-based surfaces.<\/strong><\/p>\n","protected":false},"featured_media":91978,"template":"","meta":[],"product_cat":[418,874,532,672,567],"product_tag":[918],"acf":[],"_links":{"self":[{"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/product\/91974"}],"collection":[{"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":2,"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/product\/91974\/revisions"}],"predecessor-version":[{"id":91996,"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/product\/91974\/revisions\/91996"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/media\/91978"}],"wp:attachment":[{"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/media?parent=91974"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/product_cat?post=91974"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mcbifi-bauchemie.com\/en\/wp-json\/wp\/v2\/product_tag?post=91974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}