{"product_id":"projoint-eco-820-invisible-water-based-sealer","title":"ProJoint ECO-820 Invisible Stone \u0026 Porcelain Sealer – Water Based – 1L, 5L \u0026 25L","description":"\u003csection style=\"line-height: 1.5;\" class=\"product-page\"\u003e\n\n\u003ch2 style=\"margin-top: 0; margin-bottom: 16px;\"\u003eProJoint ECO-820 Invisible Stone \u0026amp; Porcelain Sealer – Water Based\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eProJoint ECO-820 is a professional-strength water-based invisible sealer designed to protect natural stone, porcelain and compatible paving surfaces without intentionally changing their natural colour or appearance. It provides long-lasting protection while retaining the original look and character of the paving.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eThe penetrating, breathable formulation helps protect against water penetration, staining, dirt, algae and weathering. Unlike solvent-based sealers that require newly installed paving to be left before treatment, ECO-820 can be used on new paving once the surface is suitably prepared and dry, making it an excellent choice for new patios and landscaping projects.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eInvisible Protection Without Changing the Look\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eECO-820 is ideal when you want to protect your paving without creating a colour-enhanced or wet-look finish. Once correctly applied, the invisible treatment allows the natural colour and texture of the paving to remain the focus while adding an additional layer of protection against everyday exposure.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eNo 8-Week Wait Required\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eAs a water-based sealer, ECO-820 does not require the minimum 8-week waiting period associated with solvent-based sealers such as PRO-810. It can be used on newly installed paving once the paving is suitably prepared and dry, allowing new installations to be protected much sooner.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eSuitable for Porcelain \u0026amp; Natural Stone\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eOne of the major advantages of ECO-820 is its versatility. It is suitable for natural stone and porcelain paving, making it a particularly useful option for customers looking for one invisible, water-based treatment across a range of paving materials.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eMain Benefits\u003c\/h2\u003e\n\n\u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Invisible finish maintains the natural appearance of the paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Water-based formulation\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ No 8-week waiting period required\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Suitable for natural stone and porcelain paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Breathable penetrating protection\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Helps protect against water penetration\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Helps protect against everyday staining and dirt\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Helps resist algae and weathering\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Suitable for internal and external applications\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Available in 1L, 5L and 25L sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eAvailable Sizes \u0026amp; Approximate Coverage\u003c\/h2\u003e\n\n\u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• 1 Litre – Up to approx. 18m² coverage\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• 5 Litres – Up to approx. 90m² coverage\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• 25 Litres – Up to approx. 450m² coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eCoverage is approximate and will vary depending on the porosity, texture, condition and type of surface being treated. More porous materials will generally require more product.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eHow to Apply\u003c\/h2\u003e\n\n\u003col style=\"margin-top: 0; margin-bottom: 20px; padding-left: 22px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003ePrepare – ensure the surface is clean and free from dirt, dust, grease and loose material.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eDry – ensure the paving is suitably dry before treatment.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eApply – apply ECO-820 evenly to the prepared surface using a suitable roller, brush or sprayer.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eDry – allow the treatment to dry thoroughly before exposing the surface to normal use or unsuitable weather.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eSecond Coat – where required, apply an additional coat in accordance with the manufacturer's application guidance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eIdeal Uses\u003c\/h2\u003e\n\n\u003cul style=\"margin-top: 0; margin-bottom: 10px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Porcelain paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Natural stone paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Sandstone patios\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Compatible limestone paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Compatible concrete paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Patios and terraces\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Paths and walkways\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ New paving installations\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Internal and external paving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e\n\n\u003cp\u003e==specification-part==\u003c\/p\u003e\n\n\u003cstyle\u003e\n.product-spec {\n  max-width: 1080px;\n  margin: 0 auto;\n  background: #ffffff;\n  border: 1px solid var(--border, #ddd);\n  font-size: 0.9rem;\n}\n.spec-table {\n  width: 100%;\n  border-collapse: collapse;\n}\n.spec-table th,\n.spec-table td {\n  border: 1px solid var(--border, #ddd);\n  padding: 8px 14px;\n  text-align: left;\n  vertical-align: top;\n}\n.spec-table .spec-main-header th {\n  background: #f2f2f2;\n  text-transform: uppercase;\n  letter-spacing: 0.08em;\n  font-size: 0.78rem;\n  font-weight: 600;\n  color: var(--accent, #666);\n}\n.spec-table .spec-section-header th {\n  background: #e7e7e7;\n  text-transform: uppercase;\n  letter-spacing: 0.08em;\n  font-size: 0.78rem;\n  font-weight: 600;\n  color: var(--accent, #666);\n}\n.spec-label {\n  width: 32%;\n  background: #fafafa;\n  font-weight: 600;\n  white-space: nowrap;\n}\n.spec-value {\n  background: #ffffff;\n  font-weight: 400;\n}\n.spec-note {\n  display: block;\n  margin-top: 4px;\n  font-size: 0.8rem;\n  color: var(--accent, #777);\n  font-weight: 400;\n}\n.footer-note {\n  padding: 10px 14px;\n  font-size: 0.78rem;\n  color: var(--accent, #777);\n  font-weight: 400;\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"product-spec\"\u003e\n\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\n\u003ctr class=\"spec-main-header\"\u003e\n\u003cth colspan=\"2\"\u003eProduct Specifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eNexus Pro Systems Ltd\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eProduct\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eProJoint ECO-820\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eProduct Type\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eInvisible Penetrating Sealer\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eBase\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eWater Based\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e1L, 5L \u0026amp; 25L\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eFinish\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eInvisible \/ Natural Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eWhen to Apply\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eNewly Installed Paving\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e\nNo minimum 8-week waiting period required\n\u003cspan class=\"spec-note\"\u003eThe paving should be suitably prepared and dry before treatment.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eSurface Condition\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eClean and suitably dry before application\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eProtection \u0026amp; Performance\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eInvisible Finish\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eYes – designed to retain the natural appearance of the paving\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eColour Enhancing\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eNo – designed for an invisible natural finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eBreathable\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eWater Protection\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eHelps protect against water penetration\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eStain Protection\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eHelps protect against everyday staining and dirt\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eAlgae Resistance\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eHelps resist algae contamination\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eUV Stable\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable for compatible external applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eInternal \/ External\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable for compatible internal and external surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eApproximate Coverage\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePer Litre\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eUp to approx. 18m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003e1 Litre\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eUp to approx. 18m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003e5 Litres\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eUp to approx. 90m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003e25 Litres\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eUp to approx. 450m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eCoverage Note\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eCoverage is approximate and will vary according to surface type, porosity, texture, condition and application method.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eSuitable Surfaces\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePorcelain Paving\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eNatural Stone\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable where compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eSandstone\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable where compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eLimestone\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable where compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eConcrete\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable where compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePreparation\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eEnsure the surface is clean and free from dust, dirt, grease and loose material before application.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eApplication Method\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eApply evenly using a suitable roller, brush or sprayer in accordance with the manufacturer's current instructions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eDrying\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eAllow the treated surface to dry thoroughly before normal use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eAdditional Coats\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eApply further treatment where required in accordance with the manufacturer's application guidance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eECO-820 vs PRO-810\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eECO-820\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eWater-based invisible protection suitable for stone and porcelain, with no minimum 8-week waiting period\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePRO-810\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSolvent-based invisible protection for natural stone and compatible concrete; newly installed paving should be left for a minimum of 8 weeks before treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eManufacturer Information\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eNexus Pro Systems Ltd\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eRange\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eProJoint Sealers \u0026amp; Surface Treatments\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eManufacturer Guidance\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eAlways follow the latest Nexus Pro Systems preparation, application, technical and safety guidance before use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"footer-note\"\u003e\nECO-820 is designed to provide an invisible finish while maintaining the natural appearance of the paving. There is no minimum 8-week waiting period for newly installed paving; however, the surface should be suitably prepared and dry before treatment. Always test on a small, inconspicuous area before treating the complete installation to confirm compatibility and final appearance. Coverage figures are approximate and will vary according to the surface.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Primethorpe Paving","offers":[{"title":"1L – Approx. 18m² Coverage","offer_id":67586828173541,"sku":"PRO8201*","price":24.0,"currency_code":"GBP","in_stock":true},{"title":"5L – Approx. 90m² Coverage","offer_id":67586828206309,"sku":"PRO8205*","price":65.0,"currency_code":"GBP","in_stock":true},{"title":"25L – Approx. 450m² Coverage","offer_id":67586828239077,"sku":"PRO82025*","price":290.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/7849\/7509\/files\/01-projoint-eco820-main-product.webp?v=1790670097","url":"https:\/\/primethorpepaving.co.uk\/products\/projoint-eco-820-invisible-water-based-sealer","provider":"Primethorpe Paving","version":"1.0","type":"link"}