{"product_id":"polymer-admixture-850","title":"Polymer Admixture 850","description":"\u003ch2\u003e\u003cspan\u003eFlexcrete Polymer Admixture 850 – Sealer and Bonding Agent\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFlexcrete Polymer Admixture 850 is a water-based copolymer dispersion designed to modify sand and cement mortars, enhancing their mechanical and durability characteristics. It can also be used as a primer and bonding agent for polymer mortars, renders and screeds, including applications on waterproof concrete and highly porous substrates. The product is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWRAS Approved\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and suitable for use in contact with potable water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePolymer Admixture 850 improves adhesion to concrete and steel in dry, damp and permanently wet conditions while helping to increase compressive and tensile strength, abrasion resistance and resistance to water penetration. It also provides enhanced resistance to freeze-thaw cycles, alkalis and dilute acids.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/polymeradmixture850.webp?v=1786974825\" alt=\"Polymer Admixture 850 polymer bonding agent for cement mortars\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWater-based copolymer dispersion for polymer-modified cementitious mortars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproves adhesion to concrete and steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for dry, damp and permanently wet conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnhances compressive and tensile strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProvides high abrasion resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduces water permeability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnhances resistance to freeze-thaw cycles, alkalis and dilute acids\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCan be used as a primer and bonding agent for polymer mortars, renders and screeds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for use in contact with potable water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eWRAS Approved\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable in 5 litre and 25 litre containers\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePolymer Admixture 850 is suitable for a range of cementitious repair and construction applications, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePolymer-modified sand and cement mortars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRender mortars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePatching mortars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeavy-duty mortars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLight-duty screeds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMedium and heavy-duty screeds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePriming highly porous or absorbent substrates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBonding polymer mortars, renders and screeds to suitable substrates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrimer applications for roofs and decks in clean water applications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Information\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Polymer Admixture 850\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Water-based copolymer dispersion\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFunction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Sealer, bonding agent and polymer modifier\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eApproval:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e WRAS Approved\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePack sizes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5 litres and 25 litres\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePrimer slurry coverage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10–15 m² per litre of Polymer Admixture 850\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePotable water primer coverage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5–7 m² per litre when diluted 1:1 with clean water\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum dilution:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1 part Polymer Admixture 850 to 4 parts water\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum mortar\/screed layer thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 50 mm per layer\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eStorage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 12 months in dry, frost-free conditions in unopened containers at temperatures not exceeding 20°C\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eApplication Guidance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor use as a primer on highly porous or absorbent substrates, the manufacturer specifies a slurry consisting of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1 part Polymer Admixture 850, 1 part water and 2 parts ordinary Portland cement\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. The prepared substrate should be pre-dampened and the slurry applied as a thin coat, with a stated coverage of approximately 10–15 m² per litre of Polymer Admixture 850. The slurry should be allowed to become dull before continuing with the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor drinking-water applications, Polymer Admixture 850 is diluted \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1:1 with clean water\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and applied by brush or roller at 5–7 m² per litre, allowing the primer to become clear before proceeding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen producing polymer-modified mortars and screeds, the manufacturer recommends mechanical mixing using a forced-action pan mixer or drill and paddle. A normal concrete mixer is not suitable. The product should be shaken before use, and the minimum additional water necessary to achieve the required workability should be used. A water-to-cement ratio below 0.4 is advised.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMortars and screeds can be applied in layers of up to 50 mm, with subsequent layers applied when the previous layer is hardened but not fully cured. The datasheet recommends following normal concreting procedures and protecting the finished material from strong sunlight and drying winds during curing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe manufacturer's technical data provides suggested trial mix ratios for different applications, including screeds, render mortar, patching mortar and heavy-duty mortar. Trial mixes should be carried out to determine the optimum consistency and physical properties for the intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFAQs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat is Flexcrete Polymer Admixture 850 used for?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003ePolymer Admixture 850 is used to modify sand and cement mortars, improving their mechanical and durability characteristics. It can also be used as a primer and bonding agent for polymer mortars, renders and screeds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCan Polymer Admixture 850 be used on damp concrete?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. The datasheet states that the product enhances adhesion to concrete and steel in dry, damp and permanently wet conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs Polymer Admixture 850 suitable for potable water applications?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. Polymer Admixture 850 is WRAS Approved and the datasheet states that it is suitable for use in contact with potable water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat coverage does Polymer Admixture 850 provide as a primer?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eFor the specified cement slurry primer, coverage is approximately 10–15 m² per litre of Polymer Admixture 850. For the specified drinking-water primer diluted 1:1 with water, coverage is 5–7 m² per litre.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat pack sizes are available?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003ePolymer Admixture 850 is supplied in 5 litre and 25 litre containers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDownloads\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/polymer_admixture_850_data_sheet.pdf?v=1786974923\" title=\"Polymer Admixture 850 Data Sheet\"\u003eData Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Flexcrete","offers":[{"title":"5L","offer_id":57389178225015,"sku":"POLYMERADMIXTURE850","price":88.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/polymeradmixture850.webp?v=1786974825","url":"https:\/\/clevershieldcoatings.co.uk\/products\/polymer-admixture-850","provider":"Clever Shield - Asset Protection","version":"1.0","type":"link"}