DEI XL Damping Material is a self-adhesive, butyl-based constrained-layer sound deadener at an extra-thick 4 mm for stronger low-frequency vibration control on floors, doors, and large panels. Foil-faced with a UL 94 V-0 flammability rating; peel and stick to clean metal. This sheet measures 12.5in x 24in. Universal.
Specifications
| Product | XL damping material |
| Size / Thickness | 12.5 x 24 in, 4 mm |
| Material | Self-adhesive butyl, foil-faced (UL 94 V-0) |
| Part Number | 50221 |
Shipping: In-stock orders placed before 4 PM EST ship the same day, with standard, expedited, and overnight options available at checkout. Backordered items ship as soon as our distributor restocks — contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
