{"product_id":"basf-walltite®-max-w-winter-reactivity-closed-cell-spray-foam-insulation-resin-b-component-500-lb","title":"BASF WALLTITE® Max W (Winter Reactivity) Closed-Cell Spray Foam Insulation Resin (B-Component), 500 lb","description":"\n    \u003ch1\u003eClosed-cell spray foam resin (B-component), winter reactivity\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eBASF WALLTITE® Max W is a closed-cell spray polyurethane foam resin (Part B) formulated for colder “winter” application conditions. When mixed 1:1 by volume with BASF Elastospray 8000A isocyanate, it produces a medium-density foam designed to help reduce air and moisture infiltration while delivering high thermal performance.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eKey Features:\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCold-Weather Formulation:\u003c\/strong\u003e “W” reactivity is designed for application in colder, winter conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Thermal Performance:\u003c\/strong\u003e Delivers an R-value of R-7.4 for strong insulating efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir \u0026amp; Moisture Control:\u003c\/strong\u003e Closed-cell foam helps control air infiltration and moisture infiltration when properly installed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Application:\u003c\/strong\u003e Maximum lift thickness up to 4 in per pass (up to 3.5 in back-to-back with no dwell time, per product description).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCode\/Assembly Approvals:\u003c\/strong\u003e Includes NFPA 285 and UL 263 fire-rated assembly approvals with code compliance reports (per product description).\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003chr\u003e\n    \u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\n    \u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n                \u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBASF WALLTITE® Max W \"Winter\" Reactivity - Closed Cell Spray Foam Insulation Resin (B-component) - 500 LBS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBASF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWALLTITE Max Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpray Foam Insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClosed-cell Medium-Density\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePart B (resin \/ polyol)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet content\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAmber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eR-value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-7.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal density\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8 to 2.0 pcf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eViscosity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 to 800 cPs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 to 45 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 to 80 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum lift thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in per pass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack-to-back pass guidance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 3.5 in passes applied back to back with no dwell time required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMix ratio \/ pairing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMixed equally by volume with BASF Elastospray 8000A isocyanate (Part A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication conditions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWinter conditions; \"W\" reactivity for colder weather conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComposition summary\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePart B component (resin \/ polyol) of SPF system containing blowing agent, water, polyols, catalysts, surfactants, additives and flame retardants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals (per description)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNFPA 285 and UL 263 fire-rated assembly approvals; code compliance reports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature highlights (from listing)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuperior thermal insulation; Controls moisture infiltration; Controls air infiltration; FEMA Class 5 flood damage resistant rated material; Non-fibrous; Structural enhancement; Speed of installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarning\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalifornia Residents: Proposition 65 Warning www.P65Warnings.ca.gov\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003chr\u003e\n    \u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is this a complete spray foam kit by itself?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e No. This is the Part B (resin\/polyol) component and must be mixed equally by volume with BASF Elastospray 8000A (Part A isocyanate) to create the foam.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What temperatures is this “Winter Reactivity” product intended for?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e The listing shows a temperature rating of 20 to 45°F and notes it is intended for winter conditions.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What is the maximum pass thickness during application?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e The product description lists a maximum lift thickness of 4 inches per pass, with up to 3.5-inch passes applied back-to-back without dwell time.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: How should it be stored and how long is the shelf life?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e The listing specifies 50 to 80°F storage temperature and a 6-month shelf life.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eWarmth, Quiet, and Control—Hidden Behind the Walls\u003c\/h2\u003e\n    \u003cp\u003eWALLTITE® Max W is the kind of luxury you don’t see, but you feel immediately: a calmer interior, steadier temperatures, and a home that’s beautifully sealed from drafts and damp. Its closed-cell build brings a sense of architectural confidence—adding performance while helping control air and moisture movement. Use it to elevate comfort in the most exposed zones—rim joists, cantilevers, and exterior walls—especially when winter weather is part of the design brief. It’s a foundational upgrade that makes every finish layer feel more intentional, more refined.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eChoose BASF WALLTITE® Max W to lock in high-performance insulation and cold-weather application flexibility for your next spray foam job.\u003c\/strong\u003e\u003c\/p\u003e\n    \n    \n    ","brand":"BASF","offers":[{"title":"Default Title","offer_id":52533916893551,"sku":"50833563","price":1966.03,"currency_code":"USD","in_stock":true}],"url":"https:\/\/superarbor.io\/products\/basf-walltite%c2%ae-max-w-winter-reactivity-closed-cell-spray-foam-insulation-resin-b-component-500-lb","provider":"Super Arbor","version":"1.0","type":"link"}