ALWA EPF 10 is a temperature-resistant, steel-filled gelcoat based on epoxy resin. It is used to produce temperature and abrasion resistant surfaces for vacuum, PU foam, thermionic moulds and heating plates, among others.


  • Thixotropic
  • Black
  • Curing at room temperature
  • Temperature resistance of 130 °C

Technical data at RT:

Characteristic Unit ALWA EPF 10 Hardener H 10
Appearance Visual paste liquid, yellowish
Colour black transparent
Viscosity mPa s 600.000 – 800.000 100-200
Density g/cm³ 3,21 1,0


The gelcoat must be mixed homogeneously. It can be heated to approx 40 °C. The optimal processing temperature is between 30 °C – 35 °C. Within these limits, the pot life is shorter, but the material is very easy to spread and can be applied to the pattern without air inclusions. Afterwards, carefully stir in the required amount of hardener. Afterwards, carefully stir in the required amount of hardener. The gelcoat can be applied with a short-hair brush or a spatula (approx. 2.7 kg/m²). If the thickness of the layer should be more than 1 mm, the mixture must be applied several times. Before the second layer can be applied, the first layer must be gelled. After the second layer of surface resin has been applied, it is either immediately sprinkled with ALUMINIUM GRANULATES (2 – 4 mm) (for mechanical bonding of the ALWA MOULD D backfilling compound) or stabilized by an epoxy laminate, epoxy backfilling or epoxy laminating paste.

Layers, which have cured, need to be grinded before continuing. In this case, it is necessary to use a copper layer, for example, of ALWA EPF 10. After curing the surface is easily machinable.

Mixing ratio

Mixing ratio Parts by weight
ALWA EPF 10 100
Hardener H 10 5


System Unit (kg)
Hardener H 10 1


Resin / Hardener mixture Weight Unit ALWA EPF 10 / Hardener H 10
Appearance thixotropic
Pot life at 23 °C  500 g min. approx. 60
Demoulding time hrs. 12-14
After curing and tempering of 1 hour at 120 °C
Weight ISO 1183 g/cm³ approx. 3
Temperature resistance IS/R 75 °C 125-130
Compressive strength N/mm² 130-140

Shelf life

Resin and hardener have a minimum storage life of 1 year. The products must be dry and stored at 18 °C – 25 °C in the closed original container. Resin components which are crystallised due to the storage or transport at lower temperatures can be turned back into the liquid form at a temperature of approx. 50 – 70 °C without any loss of quality. When the material is melted, the resin must be cooled down again and must have a temperature lower than 40 °C before the hardener can be stirred in.