{"id":1811,"date":"2025-12-10T07:02:24","date_gmt":"2025-12-10T07:02:24","guid":{"rendered":"https:\/\/hard-mix.com\/en\/?post_type=product&#038;p=1811"},"modified":"2025-12-10T07:02:24","modified_gmt":"2025-12-10T07:02:24","slug":"hard-curing-4000","status":"publish","type":"product","link":"https:\/\/hard-mix.com\/en\/product\/hard-curing-4000\/","title":{"rendered":"HARD CURING 4000"},"content":{"rendered":"<p>Technical Data Sheet<\/p>\n<h1>HARD CURING 4000<\/h1>\n<p>Liquid Membrane-Forming Concrete Curing Compound<\/p>\n<h2>1. Product Description<\/h2>\n<p>Hard Curing 4000 is a highly efficient liquid curing compound that forms a thin membrane over the concrete surface to prevent rapid water evaporation. It helps reduce premature shrinkage cracking, increases the final strength of the concrete, and ensures proper curing according to ASTM specifications.<\/p>\n<h2>2. Key Features<\/h2>\n<p>Reduces water loss from concrete during the first 72 hours.<\/p>\n<p>Maintains concrete moisture and prevents premature cracking.<\/p>\n<p>Ready to use and requires no thinning.<\/p>\n<p>Coveres large areas with a simple and easy application.<\/p>\n<p>Provides a uniform surface after curing.<\/p>\n<p>Suitable for hot and dry climates.<\/p>\n<p>Complies with ASTM C309.<\/p>\n<h2>3. Applications<\/h2>\n<p>Factory and warehouse floors.<\/p>\n<p>Pavements and roads.<\/p>\n<p>Precast concrete. Concrete foundations and slabs.<\/p>\n<p>Structural dams and channels.<\/p>\n<p>High-performance concrete:<\/p>\n<h2>4. Application Method<\/h2>\n<p><strong>1) Surface Preparation<\/strong><br \/>\nApply the product immediately after the concrete has been leveled and bleeding has stopped.<\/p>\n<p>The surface must be clean and free of free water.<\/p>\n<p><strong>2) Mixing<\/strong><br \/>\nThe product is ready to use; simply shake before application.<\/p>\n<p><strong>3) Application<\/strong><br \/>\nUse a manual or mechanical sprayer or a soft brush.<\/p>\n<p>Spray in a uniform layer without pooling.<\/p>\n<p>Consumption Rate:<br \/>\n5\u20138 m\u00b2 per liter, depending on surface roughness.<\/p>\n<p><strong>4) Drying<\/strong><\/p>\n<p>Initial drying time: 30\u201360 minutes.<\/p>\n<p>Do not walk on the surface or apply additional layers for 24 hours.<\/p>\n<h2>5. Technical Specifications<\/h2>\n<p>Typical Value<\/p>\n<p>Appearance: Milky or clear liquid, depending on the formula.<br \/>\nDensity: 0.95\u20131.05 g\/cm\u00b3<br \/>\nCoverage: 5\u20138 m\u00b2\/L<br \/>\nDrying Time: 30\u201360 minutes<br \/>\nCompliance with ASTM C309<br \/>\nWater Loss (ASTM C309): Less than 0.55 kg\/m\u00b2 over 72 hours<\/p>\n<h2>6. Storage<\/h2>\n<p>Store in a cool, dry place away from direct sunlight.<\/p>\n<p>Ideal Storage Temperature: 5\u00b0C\u201335\u00b0C.<\/p>\n<p>Store in its original, unopened container.<\/p>\n<p>Shelf Life: 12 months from the date of production if stored correctly.<\/p>\n<h2>7. Packaging<\/h2>\n<p>200-Liter Plastic Drum<br \/>\nApproximate Gross Weight: 210\u2013215 kg, depending on density. 30-Liter Plastic Jerrycan<br \/>\nApproximate Total Weight: 31-32 kg<\/p>\n<p>Also available in 20-liter and 5-liter containers upon request.<\/p>\n<h2>8. Important Notes<\/h2>\n<p>Do not apply to surfaces to be painted until a compatibility test has been conducted.<\/p>\n<p>Do not apply to waterlogged concrete.<\/p>\n<p>Avoid application during rain or strong winds.<\/p>\n<p>Test a small sample before full application.<\/p>\n<h2>9. Safety<\/h2>\n<p>Wearing gloves and safety glasses is recommended during application.<\/p>\n<p>Avoid direct contact with eyes and skin.<\/p>\n<p>In case of ingestion or severe exposure, seek medical attention immediately.<\/p>\n<h2>10. ASTM Compliance<\/h2>\n<p>This product is designed to meet the requirements of:<br \/>\nASTM C309 \u2013 Liquid Membrane-Forming Compounds for Curing Concrete<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Technical Data Sheet HARD CURING 4000 Liquid Membrane-Forming Concrete Curing Compound 1. Product Description Hard Curing 4000 is a highly efficient liquid curing compound that forms a thin membrane over the concrete surface to prevent rapid water evaporation. It helps reduce premature shrinkage cracking, increases the final strength of the concrete, and ensures proper curing [&hellip;]<\/p>\n","protected":false},"featured_media":1812,"template":"","meta":[],"product_brand":[],"product_cat":[38],"product_tag":[],"class_list":{"0":"post-1811","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-products","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HARD CURING 4000 - Hard Mix Company<\/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:\/\/hard-mix.com\/en\/product\/hard-curing-4000\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HARD CURING 4000 - Hard Mix Company\" \/>\n<meta property=\"og:description\" content=\"Technical Data Sheet HARD CURING 4000 Liquid Membrane-Forming Concrete Curing Compound 1. 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