{"product_id":"ausgleichsmasse-fussbodenheizung-duennschicht","title":"Levelling compound for underfloor heating – calcium sulphate, fibre-reinforced, 25 kg bag","description":"\u003ch2\u003eLevelling compound for underfloor heating – fibre-reinforced, calcium sulphate based\u003c\/h2\u003e\n\u003cp\u003eThis self-levelling, \u003cstrong\u003efibre-reinforced levelling compound for underfloor heating\u003c\/strong\u003e based on calcium sulphate (alpha hemihydrate) is the matched levelling compound for the \u003cstrong\u003eNerthusFlow\u003c\/strong\u003e low-profile underfloor heating system. Modified with a high polymer content and fibres, it produces smooth, level and load-bearing surfaces in layer thicknesses \u003cstrong\u003eup to 20 mm\u003c\/strong\u003e – including on floorboards, chipboard and dry screed elements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClassification to EN 13813: CA – C25 – F6 – B1.5\u003c\/strong\u003e · polymer-modified · self-levelling · fibre-reinforced\u003c\/p\u003e\n\n\u003ch3\u003eYour benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFibre-reinforced \u0026amp; polymer-modified\u003c\/strong\u003e – low-crack, highly load-bearing surfaces\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUp to 20 mm layer thickness\u003c\/strong\u003e in one pass\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLow consumption\u003c\/strong\u003e – only approx. 1.4 kg\/m² per mm of thickness\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWalkable quickly\u003c\/strong\u003e after approx. 3 hours\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSuitable for castor chairs from 1 mm\u003c\/strong\u003e thickness to DIN EN 12529\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSuitable for underfloor heating\u003c\/strong\u003e and non-combustible (reaction to fire A1)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eHigh strength\u003c\/strong\u003e – 25 N\/mm² compressive and 6.5 N\/mm² flexural strength\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSuitable substrates for the levelling compound\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGypsum and anhydrite\u003c\/li\u003e\n\u003cli\u003eMagnesite (xylolite) floors\u003c\/li\u003e\n\u003cli\u003eMastic asphalt\u003c\/li\u003e\n\u003cli\u003eFloorboards\u003c\/li\u003e\n\u003cli\u003eDry screed elements\u003c\/li\u003e\n\u003cli\u003eChipboard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePer DIN 18365 the substrate must be firm, load-bearing, clean, permanently dry and free of release agents. Remove friable areas and then prime with a primer suited to the substrate.\u003c\/p\u003e\n\n\u003ch3\u003eSubsequent floor coverings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTextile and resilient coverings (PVC, linoleum, rubber)\u003c\/li\u003e\n\u003cli\u003eCeramic and natural stone coverings\u003c\/li\u003e\n\u003cli\u003eParquet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMaterial requirement in the NerthusFlow low-profile system\u003c\/h3\u003e\n\u003cp\u003eIn the NerthusFlow low-profile system, the layer thickness depends on the studded membrane used – plus 5–6 mm of cover above the top of the pipe:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eHeating pipe\u003c\/th\u003e\n\u003cth\u003eMembrane layer\u003c\/th\u003e\n\u003cth\u003e+ pipe cover\u003c\/th\u003e\n\u003cth\u003eTotal layer\u003c\/th\u003e\n\u003cth\u003eConsumption\u003c\/th\u003e\n\u003cth\u003eBags per m²\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003e10 \/ 12 mm\u003c\/td\u003e\u003ctd\u003e13 mm\u003c\/td\u003e\u003ctd\u003e5–6 mm\u003c\/td\u003e\u003ctd\u003e18–19 mm\u003c\/td\u003e\u003ctd\u003e25.2–26.6 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 1.0–1.1\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e14 mm\u003c\/td\u003e\u003ctd\u003e15 mm\u003c\/td\u003e\u003ctd\u003e5–6 mm\u003c\/td\u003e\u003ctd\u003e20–21 mm\u003c\/td\u003e\u003ctd\u003e28.0–29.4 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 1.1–1.2\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e16 mm\u003c\/td\u003e\u003ctd\u003e17 mm\u003c\/td\u003e\u003ctd\u003e5–6 mm\u003c\/td\u003e\u003ctd\u003e22–23 mm\u003c\/td\u003e\u003ctd\u003e30.8–32.2 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 1.2–1.3\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eCalculated at \u003cstrong\u003e1.4 kg\/m² per mm of layer thickness\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eOrder a few more bags than calculated.\u003c\/strong\u003e We recommend a \u003cstrong\u003e5–10 % reserve\u003c\/strong\u003e: uneven substrates, edge areas, leftovers in the mixing bucket and pipe bends increase consumption. An area must be poured in one go – if material runs out mid-way, a visible joint forms. Unopened bags can be stored dry for 6 months.\u003c\/p\u003e\n\n\u003ch3\u003eConsumption and coverage\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLayer thickness\u003c\/th\u003e\n\u003cth\u003eConsumption\u003c\/th\u003e\n\u003cth\u003eArea per 25 kg bag\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003e3 mm\u003c\/td\u003e\u003ctd\u003eapprox. 4.2 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 6.0 m²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e5 mm\u003c\/td\u003e\u003ctd\u003eapprox. 7.0 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 3.6 m²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e10 mm\u003c\/td\u003e\u003ctd\u003eapprox. 14.0 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 1.8 m²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e15 mm\u003c\/td\u003e\u003ctd\u003eapprox. 21.0 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 1.2 m²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e20 mm\u003c\/td\u003e\u003ctd\u003eapprox. 28.0 kg\/m²\u003c\/td\u003e\u003ctd\u003eapprox. 0.9 m²\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eCalculated at 1.4 kg\/m² per mm of thickness, without extra consumption due to unevenness.\u003c\/p\u003e\n\n\u003ch3\u003eReady for covering by floor type\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLayer thickness\u003c\/th\u003e\n\u003cth\u003eTextile, resilient, ceramic, natural stone\u003c\/th\u003e\n\u003cth\u003eParquet\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003e3 mm\u003c\/td\u003e\u003ctd\u003e–\u003c\/td\u003e\u003ctd\u003eafter approx. 24 h\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e5 mm\u003c\/td\u003e\u003ctd\u003eafter approx. 24 h\u003c\/td\u003e\u003ctd\u003eafter approx. 36 h\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e10 mm\u003c\/td\u003e\u003ctd\u003eafter approx. 48 h\u003c\/td\u003e\u003ctd\u003eafter approx. 72 h\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eGuide values at 20 °C and 65 % relative humidity.\u003c\/p\u003e\n\n\u003ch3\u003eMixing and applying the levelling compound\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eAdd water first:\u003c\/strong\u003e pour approx. 6.5 litres of cold, clean water per 25 kg bag into a clean container.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eStir in:\u003c\/strong\u003e add the levelling compound while stirring vigorously and mix for at least 1 minute into a fluid, homogeneous mass.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApply:\u003c\/strong\u003e apply the mixed compound in one pass to the desired thickness of up to 20 mm. Working time approx. 30 minutes after adding water.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLet it dry:\u003c\/strong\u003e protect the surface from draughts while drying. Walkable after approx. 3 hours.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLayers over 20 mm:\u003c\/strong\u003e for thicker layers the mortar can be extended with dried quartz sand by up to 30 %; reduce the amount of water accordingly.\u003cbr\u003e\n\u003cstrong\u003eApplication temperature:\u003c\/strong\u003e at least +5 °C. For dry indoor areas only. When used in a heating system, follow the system's installation instructions.\u003c\/p\u003e\n\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cp\u003e1 × 25 kg bag of premixed dry mortar for mixing with water (approx. 6.5 l mixing water per bag).\u003c\/p\u003e\n\n\u003cp\u003e💡 \u003cstrong\u003eNote:\u003c\/strong\u003e merchandise – the product is made by a specialist construction chemicals manufacturer in Germany and sold by MC Therm as the matched levelling compound for the NerthusFlow low-profile system. Shelf life 6 months dry and frost-free, GISCODE CP1.\u003c\/p\u003e","brand":"INTOPLAN GmbH Bauchemie","offers":[{"title":"Default Title","offer_id":50880171639048,"sku":"50-100-000","price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/5373\/0568\/files\/Calciumsulfat-AusgleichsmassefaserverstaerktNerthusFlow25kgSack.webp?v=1789763827","url":"https:\/\/mctherm.de\/en\/products\/levelling-compound-underfloor-heating-calcium-sulphate-25kg","provider":"MC Therm","version":"1.0","type":"link"}