{"product_id":"projoint-eco-420-colour-intensifying-sealer-water-based","title":"ProJoint PRO-420 ECO Colour Enhancing Natural Stone 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 PRO-420 ECO Colour Enhancing Natural Stone Sealer – Water Based\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eProJoint PRO-420 ECO is a water-based colour enhancing sealer designed to protect natural stone while bringing out its natural colour, character and variation. Rather than leaving the paving looking completely untreated, PRO-420 ECO enriches the appearance of the stone to create deeper, more pronounced tones with a natural finish.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eThe penetrating formulation helps protect natural stone and compatible concrete surfaces against water, oil, grease, everyday staining and weathering while remaining breathable. Available in 1 litre, 5 litre and 25 litre sizes, it is suitable for everything from smaller projects to large patios and professional landscaping installations.\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;\"\u003eUnlike solvent-based sealers such as ProJoint PRO-810, PRO-420 ECO does not require newly installed paving to be left for a minimum of 8 weeks before sealing. Its water-based formulation means it can be applied much sooner in the installation process, making it a particularly useful option when you want to protect and enhance new natural stone paving without a lengthy waiting period.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eThe paving should still be clean and suitably dry before application. For best results, allow approximately 24–48 hours drying time after cleaning before applying PRO-420 ECO, depending on the paving, weather and site conditions.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eEnhance \u0026amp; Protect Your Natural Stone\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003ePRO-420 ECO is ideal when you want more than an invisible sealer. The colour-enhancing formulation brings out the natural tones and characteristics within the stone, helping create a richer appearance while providing long-lasting protection against everyday exposure and staining.\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✓ No 8-week waiting period required before sealing newly installed paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Enhances the natural colour and character of stone\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Creates richer, deeper natural tones\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Water-based formulation\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Penetrating sealer with a natural finish\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Breathable – allows moisture vapour to escape\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Helps protect against water, oil and grease\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Helps resist everyday staining and weathering\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Easy application using a foam roller, brush or low-pressure sprayer\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;\"\u003ePRO-420 ECO or PRO-810?\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eChoose PRO-420 ECO when you want to enhance the natural colour of the stone and would prefer a water-based sealer that does not require the 8-week waiting period associated with PRO-810. Choose PRO-810 when you want a solvent-based invisible treatment designed to retain the existing natural appearance of the paving.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eAvailable Sizes\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 – Approx. 10m² Coverage\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• 5 Litres – Approx. 50m² Coverage\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• 25 Litres – Approx. 250m² Coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin-bottom: 20px;\"\u003eCoverage figures are approximate and will vary depending on the porosity, texture and condition of the surface and the amount of sealer absorbed.\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 paving is thoroughly clean and free from dust, dirt, grease and loose material.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eDry – for best results, allow approximately 24–48 hours after cleaning for the paving to dry before sealing, depending on weather and site conditions.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eApply – shake the container thoroughly and apply an even coat using a foam roller, suitable brush or low-pressure sprayer.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eAdditional Coats – on porous stone, apply further coats as required in accordance with the manufacturer's application guidance.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eProtect – allow the sealer to dry and protect the treated surface from unsuitable weather during application and drying.\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✓ Newly installed natural stone paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Established natural stone patios\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Sandstone paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Compatible limestone paving\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Paths and walkways\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Courtyards and seating areas\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Riven, smooth, honed, flamed and textured natural stone\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Compatible concrete surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin-bottom: 10px;\"\u003ePRO-420 ECO is not designed for porcelain paving.\u003c\/p\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\n.spec-table {\n  width: 100%;\n  border-collapse: collapse;\n}\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\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\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\n.spec-label {\n  width: 32%;\n  background: #fafafa;\n  font-weight: 600;\n  white-space: nowrap;\n}\n\n.spec-value {\n  background: #ffffff;\n  font-weight: 400;\n}\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\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\u003c!-- GENERAL --\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 PRO-420 ECO\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\"\u003eColour Enhancing 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\"\u003eColour Enhancing Natural Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c!-- WHEN TO APPLY --\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 8-week waiting period required\n\u003cspan class=\"spec-note\"\u003eUnlike PRO-810 solvent-based sealer, PRO-420 ECO can be applied much sooner after installation when the paving is suitably prepared.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eAfter Cleaning\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e\nApprox. 24–48 hours drying recommended for best results\n\u003cspan class=\"spec-note\"\u003eActual drying time will depend on the paving material, weather, temperature and site conditions.\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\u003c!-- PERFORMANCE --\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\"\u003eColour Enhancing\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eYes – designed to deepen and enrich the natural appearance of the surface\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 and associated staining\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eOil \u0026amp; Grease Protection\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eHelps protect against oil and grease staining\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\"\u003eWeather Protection\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eHelps protect compatible external surfaces against weathering\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c!-- COVERAGE --\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\"\u003e1 Litre\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eApprox. 10m²\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\"\u003eApprox. 50m²\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\"\u003eApprox. 250m²\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 considerably according to surface porosity, texture, condition and number of coats applied.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c!-- APPLICATION --\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\"\u003eApplication Method\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eFoam roller, suitable brush or low-pressure sprayer\u003c\/td\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 thoroughly clean and free from dust, dirt, grease and loose material.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eDrying After Cleaning\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eFor best results, allow approximately 24–48 hours before sealing, subject to paving type and site conditions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eApplication Temperature\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eIdeally 5°C to 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eDrying Time\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eApprox. 60 minutes in suitable dry ambient conditions\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\"\u003ePorous surfaces may require additional coats in accordance with the manufacturer's application instructions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c!-- SUITABLE SURFACES --\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\"\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\u003e\n\u003cth class=\"spec-label\"\u003ePorcelain Paving\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eNot suitable \/ not designed for porcelain paving\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eSurface Finishes\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eRiven, smooth, honed, flamed and textured compatible surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c!-- COMPARISON --\u003e\n\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003ePRO-420 ECO vs PRO-810\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePRO-420 ECO\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eWater-based colour-enhancing protection with no 8-week waiting period required\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; newly installed paving should be left for a minimum of 8 weeks before sealing\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c!-- MANUFACTURER --\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\nPRO-420 ECO is a colour-enhancing sealer and will intentionally deepen the appearance of many surfaces. Unlike PRO-810, there is no manufacturer requirement to wait 8 weeks after installation before application; however, the paving should be clean and suitably dry before treatment. For best results after cleaning, allow approximately 24–48 hours drying time depending on weather and site conditions. Always test on a small, inconspicuous area before treating the complete installation.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Primethorpe Paving","offers":[{"title":"1L – Approx. 10m² Coverage","offer_id":67582502568165,"sku":"PRO4201*","price":24.0,"currency_code":"GBP","in_stock":true},{"title":"5L – Approx. 50m² Coverage","offer_id":67582502600933,"sku":"PRO4205*","price":65.0,"currency_code":"GBP","in_stock":true},{"title":"25L – Approx. 250m² Coverage","offer_id":67582502633701,"sku":"PRO42025*","price":290.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/7849\/7509\/files\/efc94644-ced0-41fa-bf1f-a086a28f8339.png?v=1790601018","url":"https:\/\/primethorpepaving.co.uk\/products\/projoint-eco-420-colour-intensifying-sealer-water-based","provider":"Primethorpe Paving","version":"1.0","type":"link"}