Technical

The Science of IXPE Padding: Do You Really Need It?

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Chan Jian Ming Registered Interior Designer · 8 Years SPC Flooring Specialist Last reviewed: May 2026
IXPE Padding

If you're browsing SPC flooring, you've probably seen the term "IXPE Underlayment." It's that colorful foam layer attached to the bottom of the plank. But is it just a marketing gimmick, or does it actually serve a purpose in a Malaysian home?

1. What is IXPE?

IXPE (Irradiated Cross-Linked Polyethylene) is a high-density, closed-cell foam. Unlike traditional PE foam which is "open-cell" (like a sponge), IXPE is waterproof and doesn't collapse under heavy furniture over time.

2. Acoustic Dampening & Foot Feel

One of the biggest complaints about rigid floors is the "clicking" sound when you walk. IXPE acts as a shock absorber, significantly reducing impact noise. This is especially important for upper floors in condos or terrace houses in Malaysia.

Frequently Asked Questions

Does IXPE prevent mold?
Yes. Because it is a closed-cell foam, it doesn't absorb moisture. This prevents mold and mildew from growing between your subfloor and the SPC planks.
Can I use extra padding under SPC with IXPE?
NO. Adding extra foam under SPC that already has IXPE will make the floor too "spongy." This causes the click-lock system to flex and eventually snap.