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Vermiculite & Portland Cement Based Wet Mix Spray

Cafco FENDOLITE® MII is a spray applied, single package factory controlled premix, based on vermiculite and Portland cement. It may be floated or roller finished.

Cafco FENDOLITE® MII produces a monolithic coating able to withstand thermal shocks experienced typically in a high intensity hydrocarbon fire. Concrete structures in particular, will be protected from explosive spalling when protected using Cafco FENDOLITE® MII.


Although low in density, thus significantly reducing dead load, Cafco FENDOLITE® MII is highly durable and will not crack or spall under mechanical impact.

Cafco FENDOLITE® MII is used for application to construction elements such as concrete or individual steel sections, particularly where off-site application is required. It is suitable for exterior use on structures and vessels in the oil, gas, petrochemical and power industries, and for refurbishment or upgrading of existing tunnel structures.



Fire resistance Steel and concrete structures protected with Cafco FENDOLITE® MII have undergone fire resistance tests up to 240 minutes in approved independant laboratories to recognised standards throughout the world, including:

  • Australia (AS 1530: Part 4: 2005)
  • France, Hydrocarbon Modified Curve
  • Germany (DIN 4102: 1977-2009)
  • International Standard ISO 834: 2002
  • Italy (UNI 11076)
  • Netherlands, RWS (fire test procedures for tunnels GT-98036-1a)
  • UK (BS 476: Parts 20 and 21: 1987 Appendix D and Euroclass A1 according to EN 1350-1)
  • USA (ASTM E119: 1998, UL 263 and UL 1709 – Design No. XR719)

Fire resistance test results relate solely to the constructions tested and test conditions imposed.

Material class (Euroclass A1 according to EN 1350-1) Non combustible
Smoke generation Does not contribute to smoke generation
Alkalinity pH 12.0~12.5
Thermal conductivity at 20°C W/m°K 0.19
Theoretical coverage at 25mm thickness m²/tonne 65
Cure By hydraulic set
Initial set at 20°C and 50% RH 2~6 hours
Density kg/m³ Minimum 775 ± 15% when dry and in place
Sound absorption NRC 0.35
Corrosion resistance Does not promote corrosion of steel. Please seek advice of structural engineer concerning long term corrosion protection, particularly when the structure is to be fully exposed to prevailing weather conditions.
Colour and texture condition Off-white with a monolithic spray texture