Trademark Soundproofing Acoustical Putty Pads — Moldable Fire Stop for Electrical Boxes, 7x7, Pack of 3, UL/STC Rated, Made in USA

Elevate your room acoustics with our Acoustical Putty Pads

Trademark Soundproofing Acoustical Putty Pads are crafted for outlets and electrical boxes embedded in walls where sound control matters. The 7" x 7" pads are molded around boxes to create a snug, compliant seal that helps preserve wall STC performance and reduce air leakage. The red, tacky material grips surfaces without tearing, remains pliable for precise shaping around wires, and blends into a variety of installations. Used as part of a broader soundproofing strategy, these pads help maintain a calm, consistent acoustic environment from room to room.

Fire safety is thoughtfully integrated into the design. The intumescent composition activates with heat, forming a protective barrier that supports fire-rated walls. In addition to blocking flames and smoke, the pads are compatible with standard wall assemblies that require fire containment, contributing to overall safety without compromising sound isolation. The combination of high acoustic metrics and fire resistance creates a versatile solution for many spaces, from home theaters to quiet offices.

Key benefits at a glance

• Seal around outlets to minimize sound transfer and preserve room isolation.
• Intumescent material provides fire-stop properties and heat-activated sealing.
• Peel-and-stick installation; no curing required; cuts easily for wire passages.
• Pack includes three pads, sized 7" x 7" x 1/8" for flexible fitment.
• UL-rated fire performance with an STC rating of 49 in tested wall assemblies.

Performance and specifications

• Dimensions: 7" x 7" x 1/8"; Color: Red; Material: Intumescent putty.
• Activation temperature: 220°F; Fire rating: up to 2 hours in fire-rated walls.
• Sound control: STC 49; Meets relevant ASTM E90/ASTME84 benchmarks for perimeter sealing.
• Application: Non-curing; peel-and-stick; trim for wire penetrations.
• Shelf life: 24 months; Made in the USA.

How to use

Peel the backing, press around the outlet box, and trim as needed to fit around cables. Place pads to cover the gaps where sound and air might travel through the wall cavity. For best results, align pads with other soundproofing layers in your wall assembly.

Real-world applications

Ideal for studios, home theaters, and quiet offices where sound control is a priority. The pads help reduce cross-room noise and support fire containment in fire-rated walls, all while being straightforward to install for DIYers and professionals alike. They offer a practical way to reinforce walls without adding complex steps to your project.