Novagard Novaflex Metal Roof & Panel Caulk Adhesive Sealant Gutter Gray A single-component, low-odor silicone used to seal seams and fill joints, NovaFlex Metal Roof & Panel Adhesive Sealant cures to most materials without corroding, drying to a durable, rubber-like solid that is utterly impervious to UV light, so will never chalk or fade. This general purpose compound provides unbeatable adhesion to metal, coated metals (including Kynar®), wood, masonry, PVC, and most common construction materials. Great for exterior and interior sealing Permanently flexible Will not shrink or crack Waterproof Tack-free in 10 minutes, completely cured within 48 hours No solvents or odor Will not freeze Easily gunned at all temperatures
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