AMES MSS1 Maximum Stretch Roof Coating, 1 Gallon, White Maximum-Stretch is a white, elastomeric, acrylic, rubberized roof coating sealant with 650% elongation to resist cracking peeling. With 88% light reflectivity, the bright white finish reduces surface temperatures resulting in lowered cooling costs. Features Ames Maximum-Stretch is a white, elastomeric, acrylic, rubberized roof coating sealant with 650% elongation to resist cracking peeling. With 88% light reflectivity, the bright white finish reduces surface temperatures resulting in lowered cooling costs. Ames Maximum-Stretch adheres to metal roofing, tar, rolled roofs and more. Use as a RV roof sealant, waterproof sealant, rubber roofing material and more. Designed for low-slope roof maintenance. 650% elongation - does not flake, chip or peel - elastomeric and rubberized coating and sealant. Rubber roofing material is 88% light reflective resulting in lowered cooling costs. Brush, roll or spray on! Non-toxic, eco-friendly, low VOC made in the USA 1 Gallon - Our waterproof roof sealant is packaged in 1 gallon Pail. Designed for low-slope roof maintenance on metal roofing, built-up roofing, rolled roofing and more. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.