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Transurethane Finish 93.65

Product Overview
Transurethane Finish 93.65 is an aliphatic polyurethane topcoat based on hydroxylated acrylic resin, suitable for anti-corrosion coatings on all parts above the waterline of ships, light steel structures, petrochemicals, engineering machinery and equipment, etc. This product has extremely good durability and can provide excellent color and gloss retention.
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Description

Physical properties

Color / Gloss by color card / Highlight

Volume solid content 51%

Flash Point >24 ℃

Volatile organic components ( VOC ) about 42 0 gram / L

Density per litre 1.2 g / centimeter 3



Dry film thickness ( μm )

Wet film thickness ( μm )

Theoretical coating rate ( m2 / L )

Film thickness range

30 – 50

60 – 100

17 – 10.2

Recommended film thickness

40

80

12.8


Construction instructions

Mixing ratio base material: curing agent = 20 : 4 (Weight ratio ) Base material: Curing agent = 80 ∶ 20 (volume ratio )

Applicable time after mixing at 10 ℃: 10 Hours, 23 °C: 6 Hours, 30 °C: 4 Hour

Airless spray nozzle pressure: 12-18 MPa 

Nozzle aperture: 0.38-0.53 mm 

Spraying angle : 40-80 Spend

Coefficient ratio: 0-3% (volume ratio)

Air spray nozzle pressure: 0.3-0.5 MPa 

Dilution ratio: 0-5% (volume ratio )

Brush or roller application , dilution ratio: 0-5% (volume ratio ) Thinner / Cleaning Agent 609 Polyurethane Thinner

Nozzle aperture: 1.2-1.5 mm

It is recommended to add an appropriate amount of diluent after mixing components A and B of the paint evenly.

Avoid adding excessive amounts of thinner, as this will reduce sag resistance and extend curing time.


Drying time and time between recoating (1)

Substrate temperature

 Dry time

 Working time

 Fully cured

Recoating interval (2)

Shortest

longest

10 ℃

4 hours

12 hours

10 days

24 hours

48 days

23 ℃

2 hours

6 hours

7 days

12 hours

30 days

30 ℃

1 hour

4 hours

5 days

8 hours

20 days

(1)The data is for reference only. The actual drying time and recoating interval depend on factors such as paint dry film thickness, ventilation, humidity and previous paint.

(2)The surface must be dry and free of dirt before recoating. The adhesion of subsequent coatings is best when the previous coating is completely cured. If the coating is exposed for a long time, the surface must be roughened before recoating to ensure adhesion between the coatings.


Surface treatment

The painted surface must be dry ; SSPC-SP1 According to the regulations , use solvent to remove all grease from the surface ; use clean water to remove salt and stains from the surface . The corroded area must be repaired with a suitable primer .


Construction conditions

The surface temperature of the substrate shall not be lower than 5 °C and at least 3 °C higher than the air dew point temperature, and the relative humidity shall not exceed 85% (the temperature and relative humidity shall be measured near the substrate).

The surface temperature of the substrate should not exceed 40°C . Otherwise, a suitable spraying method should be selected and appropriate diluent should be added as required to prevent dry spraying. In extreme cases, the dry film thickness of the coating can be appropriately reduced to prevent sagging.

When painting in a confined space, appropriate ventilation equipment must be provided to ensure the cure of the paint film.

After the base material and curing agent are mixed, the temperature must be higher than 15 ℃, otherwise diluent should be added to achieve the required viscosity for construction.


Recommended Package

The following are typical high performance coating systems:

TO1.79 epoxy zinc-rich primer

1 × 60μm

(Dry film thickness)

TO91.64 Epoxy Mic Iron Intermediate Paint

1 × 120μm

(Dry film thickness)

TO93.65 polyurethane topcoat

2 × 40μm

(Dry film thickness)


Store

Must be stored in accordance with national regulations. The storage environment should be dry, cool, well-ventilated, avoid high temperatures and stay away from fire. The packaging container must be kept sealed. The storage validity period is at least 12 months.


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