Edition 1 · April 2026

Underlayments
Product Catalogue

A complete technical and commercial reference for European distributors, importers, retailers, and specification writers. 17 products across four material families, with full specifications and EN standards references.

IXPE moisture-proof underlayment with PE film — OPUS Flooring product range

Product Index

Complete reference of all 17 underlayment products of OPUS. Select any product to view full technical specifications.

Chapter 1 — IXPE Underlayments

Chapter 2 — EVA Underlayments

Chapter 3 — EPE Underlayments

Chapter 4 — Cork & Rubber Underlayments

Product Comparison Summary

At-a-glance comparison of all underlayment products across key performance parameters.

Performance comparison of all 17 OPUS underlayment products. IIC and STC ratings are measured to North American standards; EU ΔLw testing is in progress.
SKU Material Thickness Density IIC ★ STC ★ λ (W/m·K) Surface Coating
Chapter 1 — IXPE Underlayments
IXPE 3020-4 IXPE 2 mm 33 kg/m³ 62 dB 60 dB 0.04 PE film
IXPE 3020-4H IXPE 2 mm 33 kg/m³ 62 dB 60 dB 0.08 PE film (perforated)
IXPE 3030-AH IXPE 3 mm 33 kg/m³ 70 dB 68 dB 0.08 Aluminium film (perforated)
IXPE 3030-G IXPE 3 mm 33 kg/m³ 70 dB 68 dB 0.04 Gold film
Chapter 2 — EVA Underlayments
EVA 30-4 EVA 3 mm 100 kg/m³ 73 dB 72 dB 0.04 Blue PE film
EVA 30G-4 EVA 3 mm 100 kg/m³ 73 dB 72 dB 0.04 Green PE film
EVA 30-G EVA 3 mm 100 kg/m³ 73 dB 72 dB 0.04 Gold film
EVA 30-F EVA 3 mm 100 kg/m³ 73 dB 72 dB 0.04 Aluminium foil
EVA 20-A EVA 2 mm 100 kg/m³ 64 dB 65 dB 0.04 Aluminium film
Chapter 3 — EPE Underlayments
EPE 30-4B EPE 3 mm 22 kg/m³ 58 dB 55 dB 0.03 Blue PE film
EPE 30-A EPE 3 mm 22 kg/m³ 58 dB 55 dB 0.03 Aluminium film
EPE 30-G EPE 3 mm 22 kg/m³ 58 dB 55 dB 0.03 Gold film
EPE 20-A EPE 2 mm 22 kg/m³ 48 dB 44 dB 0.03 Aluminium film
EPE 20 EPE 2 mm 22 kg/m³ 48 dB 44 dB 0.03 None
Chapter 4 — Cork & Rubber Underlayments
CORK 20-AF Cork 2 mm 250 kg/m³ 50 dB 46 dB 0.05 Aluminium foil
CORK 20-P Cork 2 mm 250 kg/m³ 50 dB 46 dB 0.05 PET film
RUB 20-A Rubber 2 mm 880 kg/m³ 64 dB 62 dB 0.20 None
★ IIC and STC ratings are measured to North American standards (ASTM E492 / ASTM E90). EU-equivalent impact sound improvement (ΔLw, dB) per EN ISO 717-2 and airborne sound insulation (Rw, dB) per EN ISO 717-1 testing is in progress for the European market. Values will be updated as results become available.

Trade Enquiries Welcome

OPUS supplies EU distributors, importers, and flooring retailers. For pricing, minimum order quantities, and logistics information, contact our EU trade team.

Contact OPUS Trade Team