How Does Acoustic Foam Work? Material Guide

How Does Acoustic Foam Work? Material Guide

In the opus of sound management, one element takes center stage for its transformative qualities – acoustic foam. Its spongy surface, adorned with evenly spaced open pores, creates a magic of its own. In this blog post, we delve into the captivating world of acoustic foam and how it works, exploring its role in sound absorption, addressing the question of whether it can completely soundproof a room, and shedding light on the exceptional offerings from Olanglab.


What is Acoustic Foam and How it Works?

Melamine, a foamed ceramic, is used to make Acoustic Foam. The material's open cells absorb sound energy from reflected waves, shortening the amount of time noise remains in the atmosphere. All new sounds (music, human speech, etc.) become clearer the shorter the time interval because they have less time to compete with all the other sounds in the atmosphere.

When someone is searching for a material to block sound, they may wonder if acoustic foam works. It is obvious that a lightweight foam product is not appropriate for that purpose. Acoustic foam is still useful, though, despite this! Acoustic foam is a fantastic option if you want to lessen background noise and echo, also referred to as noise pollution.

Absorbing Sound vs. Blocking Sound

Acoustic foam, with its porous structure, is a master of absorbing sound waves. But is it capable of completely soundproofing a room? Let's find out!


Role of Materials in Sound Absorption 

The materials chosen for sound absorption play a pivotal role, and we ensure excellence in this aspect. Acoustic foam, a key player in their repertoire, possesses a porous structure that becomes the frontline warrior against unwanted echoes. The evenly spaced open pores work in harmony to absorb and diffuse sound waves, preventing them from bouncing around and disrupting the acoustic balance. 


Environmentally Friendly and Sustainable 

our commitment extends beyond performance; it delves into sustainability. The acoustic foam utilized by us is not just a marvel of sound engineering; it's environmentally friendly and sustainable. This aligns with Olanglab's dedication to reducing environmental impact and contributing to a greener future. (Acoustic Pulp Bio Colour, 2023)


Differences Between Soundproofing Foam and Acoustic Panels 

Soundproofing Foam

Soundproofing foam is designed to reduce the transmission of sound between spaces. It often involves thicker, denser materials that act as barriers to block sound.

Acoustic Panels 

Including those from Olanglab, focus on absorbing and diffusing sound within a space. Their primary goal is to enhance the acoustics of a room by minimizing reflections and reverberations. 



Soundproofing Foam

Acoustic Panels

Material Composition

Typically, polyurethane or melamine foam

Varied, including fiberglass, mineral wool, or foam


Absorbs and dampens sound within a space

Absorbs and diffuses sound for overall acoustic control

Application Areas

Recording studios, home theaters, etc.

Auditoriums, offices, open spaces, versatile usage

Installation and Placement

Applied to walls or ceilings

Wall-mounted, ceiling-suspended, freestanding

Aesthetic Considerations

Simpler appearance

Varied designs and customizable options

Cost Factors

More cost-effective

May involve a higher upfront cost


Some of our Acoustic Panels are here: 

Wave Verse

  • Price: $139.00
  • Material: Acoustic Foam and Plywood Panel 
  • Dimensions: 19.69*19.69*0.55 inches each 
  • NRC: >0.85 
  • Environmental Protection Level: E0 
  • Diffusion Range: 700Hz-3000Hz, offering a more harmonious and engrossing soundscape.
  • Absorption Range: 150Hz-10000Hz, decreasing distracting noise
  • Absorption Frequency: low-to-mid 


Natural Oak Extendo

  • Price:$188.00 
  • Available color: Deep Dark 


  • Package includes 2-pack wood slats 
  • Material: MDF Slat + PET Felt 
  • Dimensions: 94.48 x 12.59 x 0.82 inches each 
  • NRC: >0.85 
  • Environmental Protection Level: E0 
  • Diffusion Range: 700Hz-3000Hz
  • Absorption Range: 150Hz-10000Hz minimizing echoes
  • Absorption Frequency: mid-to-high


What is Acoustic Foam Made of?

Open-cell polyurethane foam is the usual material for making acoustic foam. This type of foam is chosen for its unique structure, which features interconnected open pores. The porous nature of acoustic foam plays a crucial role in its effectiveness in sound absorption. Here's a breakdown of the key components and the manufacturing process of acoustic foam: 

Polyurethane Foam 

The primary material used in acoustic foam is polyurethane, a polymer composed of organic units joined by urethane links. This material is known for its versatility, durability, and ability to be molded into various forms. In the context of acoustic foam, polyurethane provides the foundation for the foam's structure. 

Open-Cell Structure 

Distinguished by its open-cell structure, where the foam contains interconnected voids or pores. These open cells are crucial for sound absorption. When sound waves encounter the foam, they enter the open cells and undergo a series of reflections and absorptions, dissipating the energy of the sound wave. 

Evenly-Spaced Pores 

The surface of acoustic foam is designed with evenly spaced open pores. This specific arrangement enhances the foam's ability to absorb sound across a broad frequency range. The evenly spaced pores contribute to the scattering and diffusion of sound waves, preventing them from bouncing off surfaces and causing unwanted echoes. 

Density and Thickness Variations 

The effectiveness of acoustic foam is also influenced by its density and thickness. Different applications may require foam with varying densities and thicknesses to address specific acoustical challenges. Thicker and denser foam is often used for lower frequency absorption.

Fire Retardants and Additives 

Depending on the specific application and safety regulations, acoustic foam may include fire retardants to enhance its fire resistance properties. Additionally, some foams may include additives to improve durability, resilience, or other performance characteristics. 


Recording studios to control reflections and echoes. 

In-home theaters for improved audio clarity. 

In offices to create a quieter, more focused work environment. 


Can Acoustic Foam Completely Soundproof a Room? 

The allure of foam lies in its ability to absorb sound waves, reducing echoes and creating a more controlled acoustic environment. However, it's crucial to understand that while acoustic foam is highly effective at absorbing sound, it may not completely soundproof a room. Soundproofing involves creating barriers to block sound transmission, which goes beyond the capabilities of traditional acoustic foam. 

The Decision-Making Dilemma: Acoustic Foam vs. Panels 

Choosing between acoustic foam and panels often depends on the specific requirements of a space. While acoustic foam excels in absorbing sound within a room, panels offer versatility and can be customized to address broader acoustical challenges. Its range allows users to explore both options, ensuring that the decision aligns with the unique needs of the space. 

Acoustic Foam Specifications 

Understanding the specifications of acoustic foam is crucial for optimal performance. Olanglab's acoustic foam, for instance, boasts a carefully engineered porous structure designed for maximum sound absorption. The specifications ensure that the foam effectively serves its purpose in creating an acoustically balanced space. 


In search of the perfect acoustic environment, Olanglab's magic of foam becomes a guiding light. Whether it's absorbing sound, creating bespoke acoustic panels, or offering sustainable solutions, they stand at the forefront of acoustic innovation. The enchanting world of acoustic foam, as presented by Olanglab, is a testament to the brand's commitment to transforming spaces into harmonious auditory experiences. If you are curious to know more about acoustic foam, then contact the experts now!