MegaFiller Smooth

Product description

Megafiller Smooth is two pack solvent-free epoxy filler that leaves a very smooth surface. The product gives a hard film, but retains excellent sanding properties. It has a lower viscosity than Megafiller and Megafair.

Recommended use

Megafiller Smooth is suitable for above and below-water application. Normally used for re-finishing surfaces treated with Megafiller, or to repair existing epoxy or polyurethane systems. Suitable as part

of an epoxy coating system on metal, GRP or wood substrates.

Film thickness and spreading rate


Film thickness, dry (µm)







Film thickness, wet (µm)




Theoretical spreading rate (m²/l)





Application range up to 3 mm.


Physical properties

Colour Off-white

Solids (vol %)* 100 ± 2

Flash point >56ºC ± 2

*Measured according to ISO 3233:1998 (E)

Surface preparation

The coating may be used on other substrates. Please contact your local Jotun office for more information.

Condition during application

Apply at a temperature between 10°C and 35°C. The temperature of the substrate should be minimum 3°C above the dew point of the air. The temperature and the relative humidity should be

measured in the vicinity of the substrate.

Application data

Mixing ratio (volume) Trowel, pallet knife or other suitable dispenser.

1 part base + 1 part hardener.

Mix the two components thoroughly, in their correct proportions with a knife until the colour is perfectly even (about 2-3 minutes)

Pot life (23°C) 30 minutes

Thinner/Cleaner Jotun Thinner No. 17 to clean equipment.

Note May be sanded after 16-24 h (dependent on temperatures)

Drying time

Drying times are generally related to air circulation, temperature, film thickness and number of coats, and will be affected correspondingly. The figures given in the table are typical with:

  • Good ventilation (Outdoor exposure or free circulation of air)

  • Typical film thickness

  • One coat on top of inert substrate

Substrate temperature




Surface dry

14 h

8 h

2 h


10 d

7 d

3 d

Dry to recoat, minimum

14 h

8 h

2 h


Dry to recoat, maximum

72 h

72 h

48 h


  1. Provided the surface is free from chalking and other contamination prior to application, there is normally no overcoating time limit. Best intercoat adhesion occurs, however, when the subsequent coat is applied before preceding coat has cured. If the coating has been exposed to direct sunlight for some time, special attention must be paid to surface cleaning and mattening/removal of the surface layer in order to obtain good adhesion.


    The given data must be considered as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, underlying paint system, requirement for early handling and mechanical strength etc. A complete system can be described on a system sheet, where all parameters and special conditions could be included.

    Instructions for use:

    Apply onto suitable undercoats such as Megacote or Megaprimer or Megafiller. Sand Megafiller Smooth before covering it to help anchorage. Overcoat with Megaprimer and Megaspeed



    The product must be stored in accordance with national regulations. Storage conditions are to keep the containers in a dry, cool, well ventilated space and away from source of heat and ignition.

    Containers must be kept tightly closed.


    Handle with care.

    Packing size

  2. L Comp. A and 2 L Comp. B

Packing may vary from country to country according to local requirements.

Health and safety

Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately

be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and medical attention sought immediately.