Product Benefits

  • Acoustic absorption: αw = 1.00
  • Reaction to fire: A2-s1, d0
  • Control of airborne particles: ISO 4
  • Resistance to mold Degree 0
  • Closed edges
  • Ideal for areas requiring high-pressure cleaning, intensive maintenance and the use of detergents
  • IAQ: A+ certified by Eurofin Indoor Air Comfort® certified

Caracteristics & Performance

Acoustic absorption

Tonga® Ultra Clean HP A 20
  • αw = 1.00 : class A / NRC = 1.00


  • Light reflection: The light reflection coefficient is superior to 84%.
  • White: L = 93,72% - according to ISO 11664-4.
  • Gloss: Matt - The gloss value is >1 with 85° angle - according to ISO 2813.
  • Light diffusion: >99% of the light is diffused.

Fire reaction

  • According to EN 13501-1: Euroclass A2-s1, d0.

Humidity performance

  • Class C RH 95%, 30° C.

Control of Airborn particles

  • Tonga® Ultra Clean HP A 20 ceilings are Class
    • Les plafonds Tonga® Ultra Clean HP A 20 sont classés ISO 4 selon la Norme ISO 14644-1.

    according to ISO 14644-1.

Resistance to mould

  • Tonga® Ultra Clean HP A 20 ceilings pprevent mould and bacteria growth: Degree 0 according to ISO 846 (methods A and C).


Environment and health


  • Mineral wool is recyclable, and the vast majority of production waste is recycled. The recycled content (in conformity with the norm ISO 14021) of the product Tonga® Ultra Clean HP A 20  is 50%.
  • The production is certified to ISO 14001: 2015 "Environmental Management Systems".


  • Eurocoustic mineral wool is certified by EUCEB (EUropean CErtification Board for mineral wool product).
  • Mineral wool panels are manufactured with fibers exempt from the carcinogenic classification (European Regulation 1272/2008 as amended by European Regulation 790/2009). According to the International Agency for Research on Cancer, mineral wool is not classifiable as to its carcinogenicity to humans (Group 3).

CE Marking

  • DoP no.: G006

Indoor Air Quality

  • Tonga® Ultra Clean HP A 20 products are classed A+.
  • Eurofins Indoor Air Comfort® Gold certified.

Installation & Cleaning


  • Installation must conform to the requirements of the DTU 58.1 code of practice, the NF P 68203-1 and 2 standards and other applicable standards and codes of practice according to the type of room.
  • You are advised to ensure that air can circulate between the rooms and the plenum to balance the temperature and pressures on each side of the ceiling.
  • Panels must be mounted on a grid system with a silicone seal and held in place with Euroclip HP anti-lift clips.
  • Tiles can easily be cut with a craft knife without generating any noise or dust.
  • The direction in which the panels should be installed is indicated on the back of the panels.
  • Contact us if any mineral wool is to be laid in the plenum.


  • The painted surface of Tonga® Ultra Clean HP A 20 ceilings does not retain dust, which makes them easier to clean.
  • Tonga® Ultra Clean HP A 20 ceilings can be cleaned using a pressure washer (120 cycles up to 100 bar). Panels must then be held onto the grid with clips: Euroclip HP.
  • Other cleaning methods available: light brush, vacuum cleaner, compressed air, wet sponge (with or without detergent), wet steam + dry cloth and dry steam + dry cloth.
  • This type of cleaning will help extend the ceiling's service life.

Colors & Dimensions


Our commitments

Fast and flexible logistics, technical assistance, customer service: Saint-Gobain Eurocoustic accompanies you on your projects on a daily and long-term basis.

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Since July 1, 2013, the manufacturer has indicated the CE marking on its products and provided Declarations of Performance (DoP) in pursuance of the Construction Products Regulation.
The declaration of performance expresses the performance of construction products in relation to the essential characteristics of those products in accordance with the relevant harmonized technical specifications. Declarations include the following performance characteristics:

  • Reaction to fire
  • Release of formaldehyde
  • Flexural strength
  • Acoustic absorption coefficient (αw)
  • Thermal conductivity

The Declaration of Performance (DoP) alone provided by the manufacturer is sufficient evidence of the fire reaction performance of our products and can be used in place of the fire classification test reports.