Megalastic® - White Lightning

This premium sealant provides “stretchability” of over 700% and has outstanding flexibility and adhesion to most surfaces. Ideal for any caulking project, it is commonly applied to doors and windows, trim, crown molding and any joints where extreme movement can be expected.

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how do i patch these cracks between the ceiling and wall? : r/howto

White Lightning® Megalastic® Super Elastic Sealant