SmartLine® 1/4" X 42" 125' I/G Wall Foam With Spray Adhesive Kit. The Smartline® Wall Foam is thick, the high-density foam will provide a protective barrier between your new liner and the pool wall. Wall foam helps protect your liner from rust and corrosion, and it will improve your pool's heat retention.Help keep your liner looking like new for years to come with Smartline® Wall Foam! Smartline® Wall Foam is made from both white and blue foam, You may receive either white or blue with your order, but both colors provide the same protective barrier. This Spray Adhesive is designed to make pool wall foam and cove installation. The adhesive forms a strong, permanent bond between porous and non-porous surfaces. It's extremely versatile and works on metal, concrete, wood, and other hard-to-bind surfaces. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Liners". The seller is "savemoreonpoolsupplies" and is located in this country: US. This item can be shipped to United States.