{"product_id":"muro-san-duo-sanierputz-wta-renovation-plaster-for-damp-masonry-20kg","title":"muro san duo Sanierputz WTA - Renovation Plaster for Damp Masonry (20kg)","description":"\u003cstrong\u003ePremium WTA Certified Restoration Plaster for Damp \u0026amp; Salt-Laden Masonry\u003c\/strong\u003e\n\n\u003cp\u003emuro san duo Sanierputz WTA und Dämmputz is a professional-grade renovation plaster specifically engineered for treating and protecting moisture-damaged masonry in historic and traditional buildings. This pore-hydrophobic and highly diffusion-capable plaster creates permanent solutions for damp walls, salt efflorescence, and deteriorating plasterwork.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePore-Hydrophobic:\u003c\/strong\u003e Water-resistant surface prevents liquid water penetration while allowing vapor transmission\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiffusion-Capable:\u003c\/strong\u003e Highly breathable formulation allows trapped moisture to escape naturally\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWTA Certified:\u003c\/strong\u003e Complies with Wärmeschutz-Technische Analyse standards and DIN 18 557 \/ DIN 18 550 Mortar Group P II\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt-Resistant:\u003c\/strong\u003e Prevents salt efflorescence and plaster delamination on affected masonry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Workability:\u003c\/strong\u003e Easy machine and hand application with strong adhesion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Properties:\u003c\/strong\u003e Contributes to thermal performance of treated walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady-to-Use:\u003c\/strong\u003e Dry mortar formulation - simply add water to correct consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePermanent plastering of damp, salt-laden masonry\u003c\/li\u003e\n\u003cli\u003eRenovation of moisture-damaged walls in historic buildings\u003c\/li\u003e\n\u003cli\u003eTreatment of cellars and vault spaces with rising damp\u003c\/li\u003e\n\u003cli\u003ePost-flood remediation and water-damage restoration\u003c\/li\u003e\n\u003cli\u003eSurface treatment following horizontal damp-proof course installation\u003c\/li\u003e\n\u003cli\u003ePrevention of salt crystal growth and efflorescence\u003c\/li\u003e\n\u003cli\u003eBreathable facade restoration on traditional buildings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStandards \u0026amp; Certification:\u003c\/strong\u003e DIN 18 557, DIN 18 550 (Mortar Group P II), WTA approved\u003cbr\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Ready-to-use dry mortar - pore-hydrophobic and diffusion-capable\u003cbr\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e Specially formulated cement mortar with water-repellent and workability enhancers\u003cbr\u003e\n\u003cstrong\u003eProduct Code:\u003c\/strong\u003e 02056\u003cbr\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e 20kg bag\u003cbr\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Light grey\u003cbr\u003e\n\u003cstrong\u003eCoverage:\u003c\/strong\u003e Approximately 1.5-2 m² per 20kg bag at 10-12mm thickness (varies with application method and substrate)\u003cbr\u003e\n\u003cstrong\u003eApplication Thickness:\u003c\/strong\u003e First coat 10-15mm; finishing coat 5-10mm\u003cbr\u003e\n\u003cstrong\u003eApplication Temperature:\u003c\/strong\u003e Minimum 5°C; optimal 15-25°C\u003cbr\u003e\n\u003cstrong\u003eDrying Time:\u003c\/strong\u003e Approximately 7-10 days depending on temperature and humidity\u003cbr\u003e\n\u003cstrong\u003eWater Addition:\u003c\/strong\u003e 9.5-11 liters per 20kg bag (mix to desired consistency)\u003cbr\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in cool, dry conditions; shelf life 12 months in original sealed packaging\u003c\/p\u003e\n\n\u003ch3\u003eSubstrate Preparation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemove any loose, flaking, or delaminated plaster\u003c\/li\u003e\n\u003cli\u003eClean masonry surface thoroughly - remove dust, algae, and contaminants\u003c\/li\u003e\n\u003cli\u003eDampen substrate (but not saturated) before application for optimal adhesion\u003c\/li\u003e\n\u003cli\u003eEnsure adequate substrate salinity assessment before treatment\u003c\/li\u003e\n\u003cli\u003eFor optimal results, follow WTA guidelines for comprehensive damp treatment\u003c\/li\u003e\n\u003cli\u003eConsider installing horizontal damp-proof course before plaster application for rising damp issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMix Thoroughly:\u003c\/strong\u003e Add 9.5-11 liters clean water to 20kg bag. Mix with mechanical mixer or by hand until uniform mortar consistency is achieved. Allow 10-15 minutes rest, then remix before application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare Substrate:\u003c\/strong\u003e Clean and dampen masonry surface. Remove any loose material or previous failed plaster coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply First Coat:\u003c\/strong\u003e Apply 10-15mm thickness using trowel or spray application. Work in sections, maintaining edge control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCure First Coat:\u003c\/strong\u003e Allow 7-10 days drying between coats depending on temperature, humidity, and substrate porosity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply Finish Coat:\u003c\/strong\u003e Apply final 5-10mm layer for smooth, durable surface finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Protect from rain for first 48 hours. Avoid application in frozen conditions or extreme heat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSafety \u0026amp; Storage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContains Portland cement - skin and eye irritant. Avoid prolonged contact with skin.\u003c\/li\u003e\n\u003cli\u003eIn case of skin contact, wash thoroughly with water.\u003c\/li\u003e\n\u003cli\u003eIn case of eye contact, rinse immediately with clean water for at least 15 minutes.\u003c\/li\u003e\n\u003cli\u003eWear appropriate PPE: gloves, eye protection, and dust mask during mixing and application.\u003c\/li\u003e\n\u003cli\u003eUse in well-ventilated areas.\u003c\/li\u003e\n\u003cli\u003eStore in cool, dry conditions (15-25°C). Protect from rain and excessive moisture.\u003c\/li\u003e\n\u003cli\u003eKeep in original sealed packaging. Once opened, use contents within reasonable timeframe.\u003c\/li\u003e\n\u003cli\u003eKeep away from children and pets.\u003c\/li\u003e\n\u003cli\u003eRefer to Safety Data Sheet for complete handling information.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose muro san duo?\u003c\/h3\u003e\n\u003cp\u003emuro san duo represents the gold standard in WTA-certified restoration plasters. Engineered in Germany to the highest standards, this product is trusted by conservation specialists, historic building contractors, and restoration professionals across Europe. Unlike traditional impermeable barriers or budget alternatives, muro san duo provides genuine, long-lasting protection while preserving the breathability of historic masonry—essential for the longevity of traditional buildings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Germany | WTA Certified | Professional Quality | Historic Building Approved\u003c\/strong\u003e\u003c\/p\u003e]]\u0026gt;","brand":"muro Bauprodukte","offers":[{"title":"20kg","offer_id":58773871624524,"sku":"MSD-20KG","price":24.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/0626\/4908\/files\/MuroSanDUo1.jpg?v=1789214003","url":"https:\/\/onestoprender.co.uk\/products\/muro-san-duo-sanierputz-wta-renovation-plaster-for-damp-masonry-20kg","provider":"One Stop Render Supplies ltd","version":"1.0","type":"link"}