PAC International RSIC-DC04
The PAC International RSIC-DC04 is a compact resilient mount that separates drywall from adjoining framing at the fastener point. Its right-angle body isolates screws from structure using a rubber core, breaking rigid bridges that undermine acoustic assemblies — especially at soffits, corners, and transitions. Installs direct — no hat or furring channel required.
- Precision Decoupling: Isolates screws from framing using a resilient rubber body — preventing direct contact and reducing vibration paths that undermine acoustic assemblies.
- Direct-Mount, No Channel Required: Drywall fastens straight through the RSIC-DC04's isolator with #8, #10, or #12 screws — a low-profile alternative to clip-and-channel builds at trim, corners, and tight retrofits.
- Dampens Acoustic Weak Points: Purpose-built for the transitions and connection points where rigid contact typically re-couples otherwise resilient assemblies.
- Compact, Retrofit-Friendly: Low-profile mount fits behind trim, at corners, and in tight service penetrations without adding build-up.
Online orders up to 4,999 pieces. For anything larger, call (415) 864-4440 and we'll price the project with you.
Volume pricing
$7.99 per clip. Order 250+ clips and pay $7.74 per clip — an extra $0.25 off per clip for each additional 250 clips, down to a $5.59 per clip floor.
Discounts apply automatically in the cart and count boxes and cases toward the total.
RSIC-DC04 Specifications
- Width — top (face)
- 1 5/8 in
- Width — side
- 1 3/4 in
- Overall height
- 4 1/2 in
- Max spacing
- 48 in × 48 in on center
- Max load
- 36 lb
- Isolation element
- High-compression rubber core with crush sleeve
- Mounting
- Direct-mount — no hat or furring channel required
- Compatible fastener
- #8, #10, or #12 per assembly detail
Fastener specs
- Gauge
- #8, #10, or #12
- Depth — wood substrate
- 2 1/2 in
- Depth — steel substrate
- 1 5/8 in
- Width — top (including washer)
- 1 1/4 in
- Width — bottom
- 2 1/2 in
RSIC-DC04 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.
- Rockwool insulation
- Direct-mount clips
- Mass-loaded vinyl (MLV)
- Acoustic sealant
Adds MLV over Good for a denser limp-mass layer.
Estimates follow the manufacturer's standard 48" × 48" on-center clip layout for direct-mount walls and ceilings. A 10% coverage buffer is recommended to cover cuts and re-work.
STC Gauge
Compare how the RSIC-DC04 performs across assembly tiers. Select an assembly below to see the resulting STC score.
RSIC-DC04 direct-mount + MLV + double 5/8" drywall with Green Glue between layers, insulated stud wall.
- 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-DC04 compares
| Model | Primary Use | Mounting Method | Typical Layout | Isolation Element |
|---|---|---|---|---|
| RSIC-DC04this | Right-angle decoupling mount at fastener points | Direct-mount — drywall screws through isolator | ≤48" o.c. clips | Resilient rubber / elastomer |
| RSIC-1 | Baseline resilient isolation clip | Clip + 7/8" 25-ga hat channel | ≤24" o.c. channel · ≤48" o.c. clips | Molded rubber isolator |
| Resilmount A237R | Resilient sound isolation clip (Resilmount) | Clip + 7/8" or 1 1/2" 25-ga hat channel | ≤24" o.c. channel · ≤48" o.c. clips | Thermoplastic rubber sound cells |
Applicable Assemblies
See where the RSIC-DC04 fits — from budget baseline to studio-grade isolation.
Best — RSIC-DC04 + Insulation + MLV + Double Drywall + Green Glue
Stud wall · Rockwool insulation · RSIC-DC04 direct-mount · MLV · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Better — RSIC-DC04 + Double Drywall + Green Glue
Stud wall · Rockwool insulation · RSIC-DC04 direct-mount · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Good — RSIC-DC04 + Silent FX Drywall
Stud wall · Rockwool insulation · RSIC-DC04 direct-mount · Silent FX damped drywall · acoustic sealant.
