Which indoor sound insulation material is the best? Different sound insulation materials have different advantages and disadvantages.

Living in a big city offers convenient transportation, but noise pollution is a serious problem. We all want a quiet environment in the bustling city, so soundproofing materials are essential for creating a peaceful indoor space during renovations. Soundproofing materials are commonly used in places like karaoke rooms, cinemas, and home theaters. Common soundproofing materials include sponge, polyurethane foam, sound-absorbing cotton, sound-damping felt, soundproofing mat, and double-glazed windows. So, which soundproofing material is best for indoor use? Different materials have their own advantages and disadvantages; let's take a look.

Sound insulation felt

Sound insulation felt is mainly made of elastic materials such as rubber and plastic, and is a flexible, high-density roll material. It incorporates foreign technology and is made from a variety of organic minerals in specific proportions. It boasts excellent wide-band sound insulation and damping performance, making it a new type of sound insulation material. It can significantly reduce noise, effectively isolate airborne and impact sounds, and its sound insulation effect on mid-to-low frequency noise is unmatched by other materials, making it widely applicable. It is often used in conjunction with gypsum board for sound insulation of walls and ceilings, and can also be used for sound insulation and vibration reduction of pipes and mechanical equipment. Simply put, it can be used for any sound insulation purpose, and its sound insulation effect is undeniable.

sponge

Sponge has excellent sound absorption properties, making it a common choice for soundproofing in recording studios. Sponge with sound-absorbing grooves on its surface, also known as wave-shaped sponge, has even better sound absorption. However, sponge absorbs water and dust easily. If used for window soundproofing, it can absorb water during rainy days or when wiped with a damp cloth, causing the iron frames to rust. But since many modern windows don't get wet in the rain, it's still quite practical, and worth considering when choosing a sponge.

polyurethane foam

Polyurethane foam is the main component of foaming adhesive. After curing, it has good sound insulation and sound absorption effects, and is also corrosion-resistant, waterproof, and some even have flame-retardant designs, making it a good sound insulation material.

Rubber and plastic sound insulation and sound absorption cotton

Rubber and plastic sound insulation and sound absorption cotton uses industrial rubber and plastic as a carrier, adds various sound insulation particles, and is formed by nitrogen foaming. It is gray-black in color. The front has micro sound-absorbing holes and irregularly shaped sound-absorbing grooves, which can effectively filter noise of different frequencies. It integrates sound insulation and sound absorption functions, is lightweight and environmentally friendly, and has a high cost performance.

Insulating glass

It consists of two or more layers of flat glass, with the glass and aluminum alloy frame or rubber strips bonded together around the edges with high-strength adhesive, leaving a space in the middle filled with inert gas, providing good heat and sound insulation. Because the heat transfer between the air or gas between the glass panes is poor, the sound insulation effect is also excellent.