Edition 1 · April 2026

Underlays
Product Catalogue

A complete technical and commercial reference for European distributors, importers, retailers, and specification writers. Featuring a core selection of 18 products across four material families, backed by an extended manufacturing portfolio of over 50 SKUs available through our underlay manufacturing partner.

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

Product Index

Complete reference of all 18 underlay products of OPUS. Select any product to view full technical specifications.

Chapter 1 — EPE Underlays

Chapter 2 — IXPE Underlays

Chapter 3 — EVA Underlays

Chapter 4 — Cork & Rubber Underlays

Product Comparison Summary

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

Performance comparison of all 18 OPUS underlay 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 — EPE Underlays
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 2 — IXPE Underlays
IXPE 3010 IXPE 1 mm 133 kg/m³ 63 dB 65 dB 0.07 None
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 3 — EVA Underlays
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 4 — Cork & Rubber Underlays
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