- Tullahoma, Tennessee, United States
- Nov 17th
Weather Barrier Mastic PN WC-1 NG Blue BLT590MItems are new, old stock. Listing is for 15 of this item in total.The following was taken from another site regarding information on the item: Weather barrier mastics are also called breather mastics. Breather mastics have a perm rating over 10; Breather mastics allow built up vapor pressure to pass through the mastic, thus allowing it to breath.