Products / Chem Link DuraLink 50 Sealant

A highly elastic, moisture-cure elastomeric sealant for roofing, cementitious siding, metal architecture and moving joints, isocyanate-free and paintable, that the product page says is SWRI validated for plus or minus 50% joint movement and bonds to difficult surfaces such as Kynar 500 PVDF finishes. The E-Curb data sheet names DuraLink 50 as the non-slump substitute for 1-Part and M-1 on sloped roofs. It is offered in a range of roofing and siding colors, and TPO requires Chem Link TPO primer.