








IDEAL 1 lb duct seal putty (dark gray) — UL listed, non-toxic, permanently soft, paintable; seals metal, masonry, wood and plastic; ideal for junction boxes, flashings and service entrances.
$63.40
Customize
Available Quantity
30 








IDEAL 1 lb. duct seal in dark gray putty color is ideal for sealing metal, masonry, wood or plastic. It offers 1.65 specific gravity and is non-toxic. It contains calcium carbonate, magnesium aluminum silicate, crystalline quartz silica, butane polymer, synthetic polymer, carbon black, antioxidant, cellulose fiber, aluminum silicate, tall oil rosin and naphthenic wax composition. The permanently soft compound won't adversely affect plastics or corrode metals, can be painted immediately after application, and seals around junction boxes, flashings and service entrances. Duct seal is UL listed and commonly used in HVAC and electrical sealing applications.
| Materials & Construction | |
| Material | Aluminum, Rubber |
| Product Details | |
| Is Discontinued By Manufacturer | No |
| Item dimensions L x W x H | 8 x 4 x 2 inches |
| Product Dimensions | 8 x 4 x 2 inches; 0.16 ounces |
| Style | Compact |
| Sizing & Dimensions | |
| Height | 2 inches |
| Length | 8 inches |
| Product Dimensions | 8 x 4 x 2 inches |
| Product Weight | 0.01 Pounds |
| Size | 1 lb |
| Weight | 0.16 ounces |
| Width | 4 inches |
| Technical Specifications | |
| Item dimensions L x W x H | 8 x 4 x 2 inches |
Be the first in line for exclusive deals, fresh arrivals, and more!
*By signing up, you agree to receive emails from us. You can unsubscribe anytime.
Copyright @ 2026 BZ DEFENSE LLC. All rights reserved. Unauthorized use and/or
duplication of this material without express and written permission is prohibited.
