Spray foam acoustic insulation is designed to improve how sound behaves within a space, reducing noise transfer while enhancing overall indoor comfort.
At SprayIT Solutions, we install Icynene LDC‑50 open‑cell spray foam insulation (also known as Icynene Classic or H2Foam Lite LD‑C‑50), which delivers not only outstanding thermal performance but also real acoustic benefits that improve everyday living and working environments. Learn more about open‑cell spray foam insulation, including key performance facts and detailed specifications, in our dedicated guide.
While Icynene is not marketed as a dedicated soundproofing product, its structure and performance characteristics make it highly effective for reducing everyday noise, improving internal comfort, and softening sound transmission through walls and ceilings.
How Icynene Open-Cell Foam Improves Sound Control
1 Reduces Airborne Noise Transmission
Icynene LDC‑50 creates a continuous airtight seal within wall and ceiling cavities. This is critical for sound control, because sound travels easily through small gaps, cracks, and air pathways in buildings.
By sealing these air gaps, open‑cell spray foam:
- Reduces the movement of sound through building cavities
- Limits noise transfer between rooms
- Helps block everyday airborne sounds such as voices, TVs, music and household activity
This airtightness is one of the biggest contributors to improved acoustic comfort – fewer air pathways means fewer sound pathways.
2Mid‑Frequency Noise Absorption (Human Speech Range)
Icynene’s open‑cell, flexible structure allows it to absorb sound energy rather than reflect it.
This is particularly effective in the mid‑frequency range, which includes:
- Human speech
- General conversation noise
- TVs and media systems
- Office and living area activity
By absorbing sound energy, Icynene helps:
- Soften internal reverberation
- Reduce echo within rooms
- Improve acoustic comfort and clarity
- Create calmer internal spaces
Compared to rigid insulation materials, open‑cell foam performs better at sound absorption, not just sound blocking.
3Measured Acoustic Performance
Icynene LDC‑50 has proven acoustic performance data in standard building assemblies:
- Sound Transmission Class (STC): ~37
This represents solid sound‑blocking performance for a standard framed wall with insulation. - Noise Reduction Coefficient (NRC): ~0.70
This means the foam absorbs a significant amount of sound energy instead of reflecting it. - Frequency testing shows sound absorption performance improves significantly above ~250 Hz, which covers most everyday household noise and speech frequencies.
4Flexible Structure = Vibration Damping
Unlike rigid insulation products, Icynene open‑cell foam is soft and flexible.
This flexibility allows the foam to:
- Deform slightly under vibration
- Absorb vibration energy
- Reduce noise coupling through framing and building structures
This creates an added layer of vibration damping, helping reduce structure‑borne noise transfer.
What Icynene Open-Cell Foam Is (and Isn’t) Designed For
what it doesn’t do alone
- ✖ Block heavy bass or low‑frequency vibration noise effectively
✖ Replace mass‑loaded sound barriers
✖ Act as a complete acoustic isolation system between dwellings
What it does well
- ✔ Reduces airborne noise
✔ Improves speech noise control
✔ Absorbs mid‑range frequencies
✔ Improves acoustic comfort
✔ Reduces echo and reverberation
✔ Seals sound pathways through air gaps
- Low‑frequency noise control (such as heavy bass, impact noise or structural vibration) requires mass, separation, and specialised acoustic construction methods, such as:
- Double‑layer plasterboard systems
- Resilient channels
- Acoustic mineral wool
- Double‑stud or isolated wall systems
The Real Value of Icynene for Acoustic Comfort
Icynene’s acoustic benefits are complementary to its thermal and air‑sealing performance.
It is deal for:
- Homes
- Apartments
- Offices
- Commercial buildings
- Medical centres
- Education facilities
- Multi‑use developments
Where comfort, quietness and energy efficiency matter together.
Creating Quieter, More Comfortable Spaces
If you’re looking to improve:
- ✓ Internal noise comfort
- ✓Speech privacy
- ✓Living environment quality
- ✓Workplace acoustic conditions
- ✓ Building performance
Icynene Open-cell spray foam insulation is a smart, high-performing solution
Why Choose SprayIT Solutions?
At SprayIT Solutions, we don’t just install insulation — we design performance‑based building solutions.
Our Icynene open‑cell spray foam systems deliver:
This means one system delivers multiple performance outcomes – not just one benefit.
Talk to SprayIT Solutions
At SprayIT Solutions, we specialise in high-performance spray foam systems that improve thermal efficiency, acoustic comfort, and building performance
Contact us today to learn how Icynene open-cell spray foam can create quieter more comfortable, and more efficient spaces for your home or building.
SprayIT
Solutions — Building smarter, stronger, more efficient spaces for Australia’s future.