Waterproof LDPE Cross Linked IXPE Foam Underlayment
Cross-linked IXPE foam has emerged as a premium, high-performance
material for floor underlayment, offering exceptional durability,
waterproofing, and comfort for residential and commercial flooring
systems. As a key component in waterproof LDPE cross-linked foam
underlayment, IXPE foam delivers superior technical advantages that
address common flooring challenges such as moisture intrusion,
noise transmission, uneven subfloors, and wear resistance.

Product Specifications
| Attribute | Specification |
|---|
| Material | Irradiation Cross-linked Polyethylene (IXPE) |
| Cell Structure | 100% Closed-Cell |
| Standard Thickness | 1.0mm, 1.5mm, 2.0mm (Customizable) |
| Water Absorption | ≤0.01g/cm³ |
| Density | 33kg/m³ - 100kg/m³ |
| Eco-Certification | Formaldehyde-free, VOC-free |
Recommended Application Combinations
- SPC Stone-Plastic Flooring + 1.0mm/1.5mm IXPE: Enhances underfoot
comfort and mitigates the issue of SPC flooring's inherent
hardness.
- Laminate Flooring + 2.0mm IXPE: Primarily focuses on reinforcing
moisture resistance and sound-dampening performance.
- Underfloor Heating Environments: We recommend utilizing specialized
IXPE with optimized thermal conductivity to ensure uniform heat
transfer and prevent the material from emitting odors under
high-temperature conditions.
Frequently Asked Questions
How can I place an order?
1) Tell us the size details and quantity you want to order.
2) We will make PI for you.
3) Checking PI and confirm it for us, we will arrange the
production ASAP when the prepayment received.
4) We will take photos for you to confirm and then deliver the
goods soon after the balance.
5) Send the Customs Clearance Documents or tracking number to you
and track the goods for you until you get it.
How long is your production lead time?
1) Sample date will take be in 7 days
2) Mass production delivery date will be around 15-45 days, Depends
on the quantity.
Is polyethylene foam toxic?
Polyethylene is Safe and Non-Toxic. Blocking chemical off-gassing
is not so simple. Low density, food-grade polyethylene is safe and
non-toxic. It has a simple molecular structure that does not
require toxic chemical additives like phthalates and other unsafe
plasticizers.