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Spray applied insulation


General information:

Spray-applied insulation products are designed for use in thermal insulation, passive fire protection, acoustic insulation, and soundproofing works.

They are applied in dry and well-ventilated rooms, or in outdoor environments that are not affected directly by inclement weather.

There are two groups of spray-applied insulation products.

  • Fibrous products with a slag mineral wool base.
  • Paste products with an exfoliated vermiculite mineral base.

They are applied by spraying using a compressed air gun (fibrous products) onto a substrate which has received a previous coat of bonding primer or a wire mesh support, or by water projection (paste products).

Two of their main qualities are their non-combustibility (rated A1) and their joint-free application.

Product manufacture:

EURISOL performs all the functions associated with its intended industrial uses.  Its manufacture covers all the steps required to obtain a quality product: study, design, manufacture, checks, internal and external laboratory testing, traceability, test and characterisation reports as per European standards, product certification, etc.

  • Fibrous products:

Mineral wool is one of the basic raw materials used to produce ISOTHERM, ISOFLAM SM and ISOGAINE. It is obtained from the slag resulting from the melting of iron ore and skimming off of the non-metallic product in blast furnaces. This slag, to which are added other mineral fillers, is melted at around 1500°C in a furnace and poured in a continuous cast to be fiberized in an air rotary fiberizer.

The raw slag mineral wool thus manufactured is packed in bales and left to allow the particles to stand and cool down, and then stored. It is then carded and screened to eliminate nodules resulting from the fiberization process. Various essential additives (inorganic binders, resin, specific admixtures) are incorporated and then mixed in order to achieve a uniform product. These products are then bagged, loaded onto pallets and film-wrapped with their identification markings added, and then stored ready for shipment.

  • Paste products:

Our ROKISOL and ROKISOL P products are made from vermiculite. This is a natural mineral product formed by the hydration of certain basaltic materials with clayey structure (mica group). The raw vermiculite is exfoliated (expanded by the application of heat) in a kiln at around 800°C. Admixtures are then incorporated (hydraulic binders and other products) and then mixed and sized to reduce dust and produce a uniform product. Our materials are then bagged and loaded onto pallets and film-wrapped with their identification and traceability markings added.


Our products are applied on sound and dry substrates in accordance with our specifications.  Rooms have to be dry and well-ventilated. The minimum room temperature must be no less than +5°C and the maximum no more than +45°C.

Our bonding primers (ISOFIX range) ensure a preliminary bond when spraying the product onto concrete and steel substrates.

French Codes of Practice [DTU] describe the rules for applying sprayed-applied insulating products:

  • DTU 27.1 (AFNOR reference NF P15-202) for mineral fibre-based products.
  • DTU 27.2 (AFNOR NF P15-203) for paste products.

Contractors using the spray-applied products may be qualified and certified as per the following QUALIBAT standards:

  • 71424 for thermal insulation and sound insulation improvement works
  • 71434 for passive fire protection.


The ease-of-use and application of our spray-applied products on all types of substrates offer a wide range of opportunities for insulation uses in collective housing (apartment or office buildings, shopping malls, car parks, airports, industrial buildings, hotels, auditoriums, boiler rooms, generator rooms, etc.).

In addition to their perfect non-combustibility (M0 or Euroclass A1 fire proof rating), our products are chemically inert, rot proof, inorganic and vermin or rodent proof, and do not promote mould, fungal growth or corrosion.

There are applied in joint-free coats (without heat or sound bridges) to give a uniform rustic finish with no cracks or expansion joints, and no loss of performance.

The adaptability of our products, and in particular their flexibility, enables them to marry all flat or curved architectural shapes.

The attractiveness of the finish is undeniable thanks to the fine uniform appearance of the render, and the absence of joints or joinings.

The appearance of our fibrous product finishes may be enhanced by a coloured surface finish or hardener (ISOFILM or ISOCOAT), and thereby improve integration in the architectural environment.

The performances of our materials are tested in accredited national laboratories (CSTB, LNE, EFECTIS, etc) and validated by product reports.

Our products can be used on the various substrates generally found in buildings: concrete floors (traditional or prestressed), composite decking, timber floors, ventilation and smoke extraction ducting, horizontal membranes.

Product application satisfies current French thermal insulation regulations (RT 2012, ATEC and ACERMI certification) or passive fire protection requirements (Fire Safety Regulations, Eurocodes, fire-concrete codes of practice [DTU], fire-steel codes of practice).

Health risks:

All our products are free from asbestos and crystalline silica.

In November 2001, the IARC (International Agency for Research on Cancer), which is dependent on the WHO, reclassified mineral wools in group 3.

Directive 67/548/EEC defines the carcinogenic classification of building products in three categories of decreasing risk:

  • Group 1: carcinogenic to humans
  • Group 2: probably carcinogenic to humans
  • Group 3: possibly carcinogenic to humans

The Working Party reports concluded that Group 3 mineral wools cannot be classified as constituting a proven or probably carcinogenic risk for humans (WHO press release #137 dated 24 October 2001).

Moreover, EU directive 97/69/EC also determines the classification of mineral wools. A Group 3 classification (possibly carcinogenic) does not apply when it can be established that the substance satisfies:

  • either the bio-persistence requirements of note Q
  • or the geometric characteristics of note R.

The mineral wools used by EURISOL satisfy the requirements of Directive 97/69/EC). They are non-biopersistent, that is to say eliminated by the biological functioning of the lungs (INRS ED 93 sheet dated July 2007).

Our products are therefore free from any carcinogenic risk classification.



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