WaterFine Topcoat

Product description

WaterFine Topcoat is an one-pack hard and glossy topcoat based on an acrylic emulsion with very good weather resistance.

Recommended use

As topcoat in a complete water borne corrosion protection coating system or as a topcoat in a hybrid system with suitable solvent borne/solvent free primer. WaterFine Topcat can also be used aesthetic finish over a wide range of existing weathered coating systems.

Film thickness and spreading rate

                                                                                               Minimum                      Maximum                     Typical

Film thickness, dry (µm)                                                      40                                   80                                 60

Film thickness, wet (µm)                                                    110                                220                               170

Theoretical spreading rate (m²/l)                                     9,25                               4,62                              6,16

Physical properties

Colour According to colour card and Multicolor Aqua tinting system

Solids (vol %)* 37 ± 2

VOC 0,88 lbs/gal (105 gms/ltr) USA-EPA Method 24

Gloss Glossy

Gloss retention Excellent

Water resistance Good

Chemical resistance Good

Flexibility Excellent

*Measured according to ISO 3233:1998 (E)

Actual VOC in accordance with ISO 11890-1: 70 gms/ltr

Surface preparation

All surfaces should be clean, dry and free from contamination. The surface should be assessed and treated in accordance with ISO 8504.

Coated surfaces

Clean, dry and undamaged compatible primer. Contact your local Jotun office for more information.

Other surfaces

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

Condition during application

The temperature of the substrate should be minimum 5°C and at least 3°C above the dew point of the air, temperature and relative humidity measured in the vicinity of the substrate. Good ventilation is usually required in confined areas to ensure proper drying. Risk of dry spraying when applying at low relative humitity (below 30 %).

Application methods

Spray Use airless spray or conventional spray

Brush Recommended for stripe coating and small areas, care must be taken to achieve the specified dry film thickness.

Roller Use a suitable roller. However when using roller application care must be taken to apply sufficient material in order to achieve the specified dry film thickness.

Application data

Mixing ratio (volume) Single pack.

Thinner/Cleaner Water Fresh clean water

Guiding data airless spray

Pressure at nozzle 15 MPa (150 kp/cm², 2100 psi)

Nozzle tip 0.38-0.53 mm (0.015 - 0.021")

Spray angle 40-80º

Filter Check to ensure that filters are clean.

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

  • Relative humidity 70%

Substrate temperature





Surface dry

90 min

30 min

25 min

20 min

Through dry

6 h

1,5 h

1 h

1 h

Dry to recoat, minimum

8 h

2,5 h

1,5 h

1 h

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.

Typical paint system

Corrosivity category C4 (ISO 12944):

WaterFine Primer

2 x 60 µm

(Dry Film Thickness)

WaterFine Topcoat

1 x 50 µm

(Dry Film Thickness)

Corrosivity category C5-I (ISO 12944)

WaterFine Barrier

1 x 50 µm

(Dry Film Thickness)

WaterFine Primer

1 x 120 µm

(Dry Film Thickness)

WaterFine Topcoat

1 x 80 µm

(Dry Film Thickness)

Other systems may be specified, depending on area of use

Procedure for preparation and cleaning of application equipment

To avoid solvent contamination of the water borne paint the spraying equipment has to be conditioned before use. All equipment containing solvents in the pump, hoses and gun have to be thoroughly cleaned according to the following instructions.

If the application equipment is made in stainless steel, designed for and only used for application of water borne coatings this preparation and cleaning procedure is not needed.

Before spraying:

Circulate Jotun Thinner No. 17 through the equipment and hoses. Then Jotun Thinner No. 4 before fresh clean water.

After spraying:

Clean the equipment and hoses with water and alkaline detergent (Kraftvask), then circulate Jotun Thinner No. 4 and finally Jotun Thinner No. 17.


Storage condition 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. The container must be protected from freezing.

SHELF LIFE: 2 years at 23°C, subject to re-inspection thereafter. Storage at elevated temperatures will reduce product shelf life significantly.


Handle with care. Stir well before use.

Packing size

5 or 20 litre container

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.