Rutland 641C Flexible Sealant, Paste, Black, 2.3 fl-oz Tube

Rutland Seal It Right flexible latex sealant forms a non-permanent seal that expands and contracts with heat variations. For use with metal, wood, plastic, masonry and aluminum. Use to install and maintain direct vent appliances, gas-burning systems, pellet stoves and metal flues on wood and coal-burning stoves. Not an adhesive. Easily removed for cleaning and inspection.