Sonicka K2-K4®
High density polymer barrier for superior noise control
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Manufactured in Australia
sonicka-k2-k4
Soundproofing: Noise Reduction Solutions for Residences and Enterprises in Sydney,Melbourne, and Newcastle.
What Is sonicka-k2-k4-?
sonicka-k2-k4- is a flexible sound barrier made of high-density polymer. It is designed to absorb
and block noise that travels through the air. This innovative wall insulation product converts
sound energy into heat, effectively reducing unwanted sounds such as conversations, traffic,
and background machinery.
A sonic boom shows how sound can move quickly through air. The Sonicka K2-K4® system
works by adding surface mass. This slows down and spreads vibrations. It does this before the
vibrations can pass through walls and ceilings.
The result? A high-performance noise control solution that minimises disturbances, prevents
hearing loss, and enhances acoustic comfort.
Compliant with the Building Code of Australia (BCA)
Every Sonicka K2-K4® product meets or exceeds the Building Code of Australia (BCA) standards.
The Australian Building Codes Board sets these standards.
These standards apply to homes, shared living spaces, and businesses where noise control and
fire safety are important. The Sonicka system meets BCA Class 1, 2, and 3 standards. This
ensures good sound insulation and fire protection. It is suitable for all types of buildings.
Key Acoustic and Fire Performance
The Sonicka K2-K4® soundproofing product delivers excellent acoustic insulation and fire safety
without compromising design flexibility.
Technical Performance Highlights:
Sound Transmission Class (STC): Up to 26
Rw + Ctr Rating: 45–55 dB (BCA compliant)
VOC Level: 0.5 mg/m²/hr (Green Star compliant)
Fire Hazard Rating: Group 3, AS/NZS 3837-1998
Fire Resistant: Low flammability, non-toxic composition
Operating Temperature Range: −40°C to 120°C
This ensures consistent noise reduction, fire resistance, and long-term performance across
Australian conditions.
Applications Across Sydney, Melbourne, and Newcastle
1. Residential Buildings
No matter where you live, Sonicka K2-K4® can help keep your home quiet.It works in tall apartments in Sydney.It is effective in townhouses in Melbourne.It also helps in houses in Newcastle. It blocks noise that travels through the air. It also enhances
fire safety and meets all local building code requirements.Great for insulating walls and ceilings, it stops noise from moving between rooms. This helpskeep privacy and comfort in busy housing areas.
2. Commercial Properties
In busy offices and workplaces, background sounds can easily distract staff. Sonicka K2-K4®
helps remove background noise to create more focused environments.
Its fire-resistant and soundproof features are ideal for meeting rooms. They are also suitable for
studios and stores. This applies to locations in Sydney, Melbourne, and Newcastle.
3. Industrial Applications
Industrial areas generate powerful vibrations and sounds — sometimes near the speed of
sound. The Sonicka K2-K4® membrane acts as a barrier. It breaks the sound barrier in buildings.
It contains and absorbs sound waves before they escape.
It is perfect for factories, transport hubs, and warehouses. Here, noise control, fire safety, and
following the Building Code of Australia are very important.
4. Healthcare and Aged Care
In healthcare and aged care environments, quietness promotes healing and comfort. Sonicka
K2-K4® significantly reduces excessive noise from alarms, TV, and conversations. Its fire-
resistant and low-VOC composition ensures safety and indoor air quality for patients and
residents alike.
Integrated Design and Construction Benefits
The design and construction of modern Australian buildings rely on materials that balance
acoustic comfort, safety, and sustainability. Sonicka K2-K4® fits easily into plasterboard wall
systems, improving internal wall performance without adding bulk.
When placed between two layers of Gyprock, it boosts wall insulation. It also stops sound from
leaking between rooms and improves fire resistance. Builders and architects in Sydney,
Melbourne, and Newcastle trust Sonicka K2-K4® soundproofing. It is adaptable and meets the
Building Code of Australia.
Protecting Health and Wellbeing
Long-term exposure to excessive noise can lead to stress, fatigue, and even hearing loss. The
Sonicka K2-K4® system reduces sound exposure. It creates noise barriers that keep workplaces
and homes at safe noise levels.
By helping remove background noise and stabilising indoor acoustics, it enhances productivity
and supports overall wellbeing—essential for both residential and commercial users.
Environmental and Fire Safety Commitment
Sonicka K2-K4® is both environmentally friendly and fire-resistant. Its low VOC emissions ensure
cleaner indoor air, while its tested fire hazard rating (Group 3) provides a layer of fire safety
that meets Australian building standards.
This dual protection makes it an ideal choice for sustainable and safe construction of buildings
across all climates.
Why Choose Sonicka K2-K4® Soundproofing?
✅ Complies with Building Code of Australia (BCA)
✅ Fire-safe and fire-resistant materials
✅ Reduces noise that travels through the air
✅ Improves wall insulation and acoustic comfort
✅ Supports sustainable design and construction
✅ Proven in Sydney, Melbourne, and Newcastle projects
Experience the Sonicka Advantage
Whether you’re upgrading a Melbourne office, designing a Sydney apartment, or building a
Newcastle industrial site, Sonicka K2-K4® is the acoustic and fire-safe choice that exceeds
compliance expectations.
It’s more than just soundproofing—it’s a complete solution for comfort, privacy, and
protection. The result is a safer, quieter environment built to last.
Enquire Today
Ready to elevate your acoustic performance and meet BCA fire safety standards? Contact
Acoustica Projects to learn how Sonicka K2-K4® can enhance your next project.
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