PAC International RSIC-1
The PAC International RSIC-1 is a resilient sound isolation clip that separates drywall from framing to divert vibration away from adjacent rooms. It pairs with standard 7/8" hat channel on wood or light-gauge steel and installs quickly across walls and ceilings — including tight retrofit conditions.
- Proven Decoupling: Suspends furring channel on a flexible mount to create a controlled break in the structure, limiting sound-energy transfer through the assembly.
- Low-Profile Build-up: Compact dimensions enable acoustic upgrades without altering framing layouts or reducing interior floor area — ideal for retrofits and dimensional constraints.
- Installer-Friendly: Pre-aligned mounting points and a straightforward channel attachment method keep clip spacing precise while reducing on-site labor.
- High-Load Capacity: Balances support with calibrated flex so the clip carries significant system weight without sacrificing acoustic isolation.
Online orders up to 4,999 pieces. For anything larger, call (415) 864-4440 and we'll price the project with you.
Volume pricing
$4.99 per clip. Order 250+ clips and pay $4.74 per clip — an extra $0.25 off per clip for each additional 250 clips, down to a $2.99 per clip floor.
Discounts apply automatically in the cart and count boxes and cases toward the total.
RSIC-1 Specifications
- Width
- 1 1/4 in
- Height
- 3 in
- Depth
- 1 7/16 in
- Max spacing
- 24 in × 48 in on center
- Max load
- 36 lb
- Isolation element
- Molded rubber isolator with central washer
- Compatible channel
- 7/8 in 25-gauge hat channel
Hat channel specs
- Minimum gauge
- 25 gauge (hemmed edge)
- Depth
- 7/8 in or 1 1/2 in
- Width — top
- 1 1/4 in
- Width — bottom
- 2 1/2 in max
- Fasteners (wood)
- #8 × 2 1/2" coarse thread
- Fasteners (steel)
- #8/10/12 × 1 5/8" Type S self-tapping
RSIC-1 Project Calculator
Enter your surface square footage. We'll return a clip, channel, and screw count for your project — calculations run on our servers so estimates stay accurate as our field data improves.
Adds MLV over Good for a denser limp-mass layer.
Estimated STC — Planning use only
This value is an approximate assembly projection, not a project-specific assessment, certified laboratory test result or performance guarantee. Actual performance varies with the complete assembly, installation, flanking paths, penetrations and site conditions.
Estimates follow the manufacturer's standard clip and hat-channel layout for walls and ceilings. A 10% coverage buffer is recommended to cover cuts and re-work.
Estimated STC Gauge
Compare how the RSIC-1 performs across assembly tiers. Select an assembly below to see the estimated STC score.
RSIC-1 + hat channel + MLV + double 5/8" drywall with Green Glue between layers, insulated stud wall.
Estimated STC — Planning use only
This value is an approximate assembly projection, not a project-specific assessment, certified laboratory test result or performance guarantee. Actual performance varies with the complete assembly, installation, flanking paths, penetrations and site conditions.
- 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 RSIC-1 compares
| Model | Primary Use | Hat Channel | Typical Layout | Isolation Element |
|---|---|---|---|---|
| RSIC-1this | Resilient isolation clip for walls & ceilings | 7/8" 25-ga | ≤24" o.c. channel · ≤48" o.c. clips | Resilient rubber / elastomer |
| RSIC-1 | Baseline resilient isolation clip | 7/8" 25-ga | ≤24" o.c. channel · ≤48" o.c. clips | Molded rubber isolator |
| Resilmount A237R | Resilient sound isolation clip (Resilmount) | 7/8" or 1 1/2" 25-ga | ≤24" o.c. channel · ≤48" o.c. clips | Thermoplastic rubber sound cells |
Applicable Assemblies
See where the RSIC-1 fits — from budget baseline to studio-grade isolation.
Best — RSIC-1 + Insulation + MLV + Double Drywall + Green Glue
Stud wall · Rockwool insulation · RSIC-1 + hat channel · MLV · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Better — RSIC-1 + Double Drywall + Green Glue
Stud wall · Rockwool insulation · RSIC-1 + hat channel · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Good — RSIC-1 + Silent FX Drywall
Stud wall · Rockwool insulation · RSIC-1 + hat channel · Silent FX damped drywall · acoustic sealant.
