{"title":"Salt Barrier","description":"\u003cp\u003eWhite spots on the wall — known as salt efflorescence — are not the problem themselves. Capillary moisture rising from deep within the wall carries dissolved salts, and when the moisture evaporates on the surface, the salts crystallize as a coating. Cleaning the surface is temporary: as long as the capillary moisture is active, the salt will return.\u003c\/p\u003e\n\u003ch3\u003eWhat is a salt barrier?\u003c\/h3\u003e\n\u003cp\u003eA salt barrier is a special indoor and outdoor coating that chemically blocks salt crystallization near the wall surface. It does not stop the capillary movement of moisture — which must be treated by injection or waterproofing systems — but prevents salts from reaching the surface and crystallizing there. This protects the lifespan of plaster and coverings.\u003c\/p\u003e\n\u003ch3\u003eWhen is a salt barrier needed?\u003c\/h3\u003e\n\u003cp\u003eUsing a salt barrier is justified:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOn old brick and stone masonry where salt efflorescence is a recurring issue;\u003c\/li\u003e\n\u003cli\u003eIn cellars and basements where capillary absorption regularly causes salt buildup;\u003c\/li\u003e\n\u003cli\u003eBefore applying plaster where the wall’s salt concentration is known and high;\u003c\/li\u003e\n\u003cli\u003eUnder coverings where salt efflorescence can weaken tile adhesive and grout bonds;\u003c\/li\u003e\n\u003cli\u003eAs a supplement to a dehumidifying plaster system where salt treatment requires a separate step.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelationship between salt barrier and dehumidifying system\u003c\/h3\u003e\n\u003cp\u003eA salt barrier alone is not sufficient to fully treat a damp wall — identifying the moisture source and applying the main treatment system (dehumidifying plaster, injection) is primary. The salt barrier is a complementary element that manages salt efflorescence, while the dehumidifying plaster controls moisture movement. Together, they form a complete system.\u003c\/p\u003e\n\u003ch3\u003eOn which substrates can it be applied?\u003c\/h3\u003e\n\u003cp\u003eSalt barrier can be applied indoors and outdoors on brick, stone, concrete, and plaster surfaces. Some versions are formulated as paint, others as plaster additives. The application method depends on the substrate type and salt concentration — which can be determined by an on-site survey.\u003c\/p\u003e\n\u003cp\u003eBrowse our salt barrier products or request advice on assembling a comprehensive treatment system for damp walls.\u003c\/p\u003e","products":[{"product_id":"kerakoll-biocalce-zoccolatura","title":"Kerakoll Biocalce Zoccolatura","description":"\u003cp\u003eCertified, eco-compatible, NHL 3.5 natural pure lime plaster made from natural lime, compliant with EN 459-1 standard, for highly breathable plastering, ideal for GreenBuilding as well as monument restoration.\u003c\/p\u003e\n\u003cp\u003eContains only naturally derived raw materials and recycled minerals. Has low CO2 and very low volatile organic compound emissions. Naturally ventilated, actively dilutes indoor pollutants, and has natural antibacterial and antifungal properties. Can be recycled as inert waste.\u003c\/p\u003e\n\u003cp\u003eKerakoll Biocalce Zoccolatura is particularly suitable for the restoration of masonry exposed to bulging, erosion, and detachment caused by environmental effects and the degrading impact of salt concentration due to capillary moisture penetration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNatural, porous, and highly breathable, allowing the wall to breathe freely\u003c\/li\u003e\n\u003cli\u003eHighly resistant to salts, high evaporative capacity, low capillary water absorption\u003c\/li\u003e\n\u003cli\u003eBacteriostatic and fungistatic product (CSTB method)**\u003c\/li\u003e\n\u003cli\u003eWTA certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHigh Tech\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater vapor diffusion resistance factor (μ) ≤ 3, EN 1015-19\u003c\/li\u003e\n\u003cli\u003eCapillary water absorption W24 ≥ 0.3 kg\/m2, EN 1015-18\u003c\/li\u003e\n\u003cli\u003eWater infiltration depth within 24 hours ≤ 5 mm, EN 1015-18\u003c\/li\u003e\n\u003cli\u003ePorosity ≥ 40%, WTA 2-2-91\/D\u003c\/li\u003e\n\u003cli\u003eFire resistance - Class A1, EN 13501-1\u003c\/li\u003e\n\u003cli\u003eCompressive strength after 28 days - CS II category, EN 998-1\u003c\/li\u003e\n\u003cli\u003eCompressive\/flexural strength ratio ≤ 3, WTA 2-2-91\/D\u003c\/li\u003e\n\u003cli\u003eResistance against capillary action - fulfilled, WTA 2-2-91\/D\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAreas of application\u003c\/h2\u003e\n\u003cp\u003eBreathable plastering for the regeneration and protection of hollow and solid bricks, tuff, stone, and mixed masonry damp and saltpetre-affected walls, both exterior and interior. For the restoration of external plinths exposed to spotting, bulging, erosion, and detachment caused by the degrading effect of salt concentration due to constant environmental influences and capillary moisture penetration. \u003cbr\u003e\u003cbr\u003eBiocalce Zoccolatura is particularly suitable for moisture-absorbing plaster and base formation in Edilizia del Benessere®, where the strictly natural origin of its components ensures the essential parameters of prescribed porosity, hygroscopicity, and breathability.\u003cbr\u003e\u003cbr\u003eA Biocalce Zoccolatura is suitable for natural breathable restoration in monument conservation, where the consciously dosed traditional components, such as natural lime, natural pozzolan, stone, marble, and granite, ensure preservation interventions that respect the existing structures and original materials.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWrapping\u003c\/th\u003e\n\u003ctd\u003eBag 25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial requirements\u003c\/th\u003e\n\u003ctd\u003e≈ 12 kg\/m\u003csup\u003e2\u003c\/sup\u003e\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum layer thickness per layer\u003c\/th\u003e\n\u003ctd\u003e≈ 2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003e≈ 12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Kerakoll","offers":[{"title":"25 kg \/ Normal","offer_id":43325749952770,"sku":"11023","price":14150.0,"currency_code":"HUF","in_stock":true},{"title":"25 kg \/ Expired (-50%)","offer_id":56355738059076,"sku":"11023-exp","price":7075.0,"currency_code":"HUF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8027\/4946\/files\/kerakoll-biocalce-zoccolatura-falazat-kiszaritasa-hovel-37154575778050.jpg?v=1702746196"}],"url":"https:\/\/www.masterworks.hu\/en\/collections\/nedvessegkezeles-sobarrier.oembed","provider":"Masterworks Hungary","version":"1.0","type":"link"}