The Morton Strong Line SL25 is a 25-foot roll of high-tensile coppered steel strip engineered to provide heavy-duty structural reinforcement completely hidden within stained glass joints. At just 0.020" thick and 0.103" wide, its thin profile slides invisibly inside lead came channels or between copper-foiled pieces, ensuring your panels resist bowing and sagging without the need for ugly external rebar. Because it is copper-coated, the strip bonds instantly and flawlessly with standard solder, making it effortless to lock maximum stability directly into your art glass layout.
Strong Line is a thin coppered steel strip used to strengthen your stained glass panel from the inside.
Morton Strong Line SL25 coppered steel strip is just the right size for your copper foil or lead came projects