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.
| 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 |
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