Kinetics Noise-Control Putty Pads
Kinetics Noise-Control Putty Pads seal electrical boxes to block sound and maintain fire integrity. The 1/8", 7.25" × 7.25" non-hardening sheets mold easily, adhere securely, and resist moisture — helping preserve STC and limit smoke and flame spread. Fast, clean installs for multifamily, healthcare, hospitality, and commercial projects.
- #1 Outlet Box Sound Seal: Moldable pads close flanking paths around electrical boxes to preserve the wall's designed STC.
- Clean, Fast Install: Peel, wrap, press — no curing, no mess, minimal downtime, and adjustable during service.
- Flexible, Non-Hardening: Stays pliable for retrofits and future service without cracking or shrinking away from the box.
- UL Fire Integrity: Helps maintain rated assemblies and slow smoke/flame spread at penetrations (UL 263 / UL 1479 tested).
- Moisture & Air Barrier: Adheres tightly to metal or plastic boxes, reducing drafts and moisture intrusion at outlets and switches.
Online orders up to 249 pads. For anything larger, call (415) 864-4440 and we'll price the project with you.
Putty Pads Specifications
- Thickness
- 1/8" (3 mm)
- Size
- 7.25" × 7.25" square sheet
- Material
- Non-hardening acoustic putty
- Use
- Wraps standard single- and double-gang outlet/switch boxes
- Consistency
- Stays pliable — will not harden or shrink
- Fire Tests
- UL 263 / UL 1479 (ASTM E119 / E814)
- Water Resistance
- Maintains high adhesion in normal interior conditions
- Coverage
- 2 pads per outlet / switch box (front and back coverage)
Putty Pads Project Calculator
Count every outlet, switch, and junction box on the noise-critical wall — we recommend two pads per box, and we round to full boxes of 10.
STC Gauge
Compare how the Putty Pads performs across assembly tiers. Select an assembly below to see the resulting STC score.
Damped, insulated wall with open outlet/switch cutouts — flanking through box penetrations drops the effective STC 3–5 points.
- STC 30-39: Loud speech clearly audible next room.
- STC 40-49: Loud speech muffled — normal residential wall.
- STC 50-59: Loud speech barely audible; suitable for offices & multi-family.
- STC 60+: Approaches studio-grade isolation.
How Putty Pads compares
| Model | Acoustic Effect | Fire/Smoke | Install Speed | Notes |
|---|---|---|---|---|
| Kinetics Putty Padsthis | Preserves wall STC by sealing box gaps | Helps maintain UL-rated assemblies | Fast — peel, wrap, press | Non-hardening, retrofit-friendly |
| Foam Box Inserts | Moderate — may leave joints | Varies by product listing | Fast | Check device/box fit |
| No Treatment | Flanking paths reduce STC | Poor smoke barrier | Fastest | Not recommended for soundproofed walls |
Applicable Assemblies
See where the Putty Pads fits — from budget baseline to studio-grade isolation.
Best — Drywall + Studs + Insulation + Clips & Channels + MLV + Drywall + Green Glue + Drywall (all outlets padded)
Every outlet and switch box is wrapped so flanking losses at penetrations don't erase the assembly's designed STC.
Better — Drywall + Studs + Insulation + Clips & Channels + Drywall + Green Glue + Drywall (all outlets padded)
Damped, decoupled wall with putty pads at every outlet/switch box.
Good — Drywall + Studs + Insulation + Clips & Channels + Drywall (all outlets padded)
Entry-level decoupled wall — pads still recover 3–5 STC points versus unsealed outlets.
