UZIN RR 189 PLUS FR Fire Retardant Underlay Fire Retardant Underlay

Fire resistant, acoustic underlay for carpets, vinyl and LVT floor coverings

Consumption calculator

  • Fire classification according to DIN EN 13501: Bfl-s1
  • For renovation of old buildings and in new builds
  • For underfoot comfort and insulation


Main area of application:

  • Under wood flooring with tongue and groove on UZIN RR 189 PLUS FR / 3 mm
  • Under textile floor coverings, textile impact-absorbing wall coverings
  • Sound and heat insulating

Extended area of application:

  • Under cushioned vinyl floor coverings with EN 685 33-43 (K5)
  • Stress-relief

Suitable for use on:

  • load-bearing, level, absorbent and non-absorbent substrates
  • with UZIN levelling compounds levelled substrates
  • for residential areas and commercial areas


  • Easy to cut and install
  • Lies flat
  • Distinctive surface quality
  • Flame and fire retardant
  • Sound and thermal insulating
  • Improves underfoot comfort
  • For interior use

Technical data

* According to DIN EN 13 501 -1. ** According to DIN 52 210, without floor covering. *** According to 52 612, without floor covering.



1 m


grey-brown mottled

Fire resistance*



approx. 3.60 kg/m³

Material thickness

[mm] 3; 4;

Roll length

[m] 40; 30

Area weight

[kg/m²] 1,08; 1,44

Acoustic insulation improvement**

[dB] 18; 19

Thermal resistance***

[m²K/W] 0,05; 0,06

Ordering information

Article Item no. Packsize Shipping unit
3 mm 12312 1 m x 40 m
6 rolls / 240 m²
40 m²
4 mm 12315 1 m x 30 m
6 rolls / 180 m²
30 m²

Quality seals and badges

EC 1 Plus GB

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