Why SPC+IXPE Outperforms SPC+EVA, LVT & Bare SPC?

Whether in high-density urban apartments or bustling commercial spaces. The sound of footsteps and furniture being moved from upstairs has become a major source of anxiety. Floor sound insulation and sound absorption directly determine the quality of life within a space and its property value. 

However, the market is flooded with misleading claims such as “ultra-quiet.” Setting aside marketing hype, the actual sound absorption performance is ranked as follows:

SPC+IXPE: The top performer.

SPC+EVA: Offering optimal cost-effectiveness.

LVT: Luxury vinyl flooring, the material itself is flexible.

SPC: Solid plastic composite flooring, the base material is extremely hard. So its ability to block impact noise is limited.
 

What Do These Flooring Terms Actually Mean? 

The key to avoiding marketing hype lies in understanding the physical properties of the core materials. 

SPC (Stone Plastic Composite): Rigid core. Made from a composite of natural stone powder and vinyl resin. It offers extremely high hardness and stability, with a hard texture. 

LVT  (Luxury Vinyl Tile) : Flexible core, it is more pliable than SPC. While this material can absorb some high-frequency noise on its own. Its overall low-frequency sound insulation performance remains limited. 

IXPE vs. EVA: This is the deciding factor in sound absorption rankings. IXPE offers superior sound absorption performance, whereas EVA is inferior to IXPE in this regard.
 

 Acoustic Performance Ranking

Why SPC+IXPE Performs Best – Technical Explanation 

The secret behind SPC+IXPE’s consistent top ranking in sound absorption performance lies in microscopic physical acoustics. 

Closed-Cell Structure and Sound Wave Dissipation: IXPE features an extremely dense and completely independent closed-cell structure. When sound waves penetrate the hard, rigid SPC core, they enter the IXPE’s microporous matrix. The sound waves continuously reflect and refract within tens of thousands of independent microscopic air pockets. Rapidly converting sound energy into minute amounts of thermal energy, thereby “dissipating” and absorbing the sound at its source.

Physical Advantages of High Density and Long-Term Resilience: Compared to EVA, IXPE offers significant advantages. This means it retains perfect elastic recovery even after enduring heavy pressure from furniture over the long term. Its superior material consistently provides an efficient acoustic cushioning layer.

FAQ :

Q: Is SPC + IXPE flooring really more effective at soundproofing than LVT flooring?

A: The answer is yes; SPC+IXPE is indeed more effective at soundproofing than LVT. SPC flooring is less effective at soundproofing than LVT. However, adding an IXPE soundproofing underlay can significantly improve soundproofing performance.
 

Q: Can IXPE soundproofing underlayment be added under existing SPC flooring?

A: We recommend specifying the need for IXPE soundproofing underlayment at the time of purchase. Have the SPC manufacturer pre-install it before shipment.
 

Conclusion – One Simple Rule to Remember 

When selecting soundproof flooring, all you need to remember is this core formula: SPC+IXPE > SPC+EVA > LVT > SPC. 

The key to professionalism lies in “selecting materials based on your needs”—choosing what’s right for you. High-standard acoustic performance often comes with a corresponding cost. This means that the most expensive option isn’t necessarily the best fit for you: 

If you have a strong need to eliminate footsteps and the sound of heavy objects being dropped from upstairs. Then SPC+IXPE is the perfect choice that balances stability with ultimate soundproofing. 

If you're on a tight budget but still need flooring that provides basic sound insulation. SPC+EVA offers excellent acoustic performance at a very affordable price.

If you prioritize moisture resistance, exceptional underfoot comfort, and thermal efficiency for underfloor heating. Then LVT, which eliminates the risks associated with underlayment, is a more cost-effective and durable solution. 

Identify your space’s specific challenges and budget, set aside marketing hype. And make a rational investment based on real acoustic data. Only then can you create a truly quiet space that meets your expectations.