Description

Water based Three-layer Marble-Coating (Starry Sky)PF-612 is Water based Two-layer Marble-Coating (Starry Sky). It is widely applied to internal coating of non-stick kitchenware such as aluminum-made frying pans, woks, stockpots, electric stewpots, electric bake wares and cake molds.

Type

Water based marble-coating

Key features

-Eco-friendly and PFOA free

-Showing the effect of natural marble

-Excellent chemical resistance and abrasive resistance

-Excellent and lasting non-stick performance, easy to clean

Typical properties

Product model： PF-612P (Primer)

                           PF-612T (Top)

                           PF-612D1 (Dot 1)

                           PF-612D2 (Dot 2)

Recommended dosage： 10kg Primer: 10kg Top

                                         0.5kg Dot 1: 0.5kg Dot 2

Appearance： Black (Primer)

                        Black (Top)

                        White (Dot 1)

                        Light yellow (Dot 2)

Solid content (%)： 35±1 (Primer)

                               45±1 (Top)

                               40±1 (Dot 1)

                               39±1 (Dot 2)

Viscosity (cp)： 600~1000 (Primer)

                          300~800 (Top)

                          300~800 (Dot 1)

                          300~800 (Dot 2)

Density (g/ml)： 1.20±0.20 (Primer)

                          1.30±0.20 (Top)

                          1.25±0.20 (Dot 1)

                          1.25±0.20 (Dot 2)

pH： 8~11 (Primer)

         8~11 (Top)

         8~11 (Dot 1)

         8~11

Gloss (60° glossimeter)： 10-20

Film thickness (μm)： 35-45

Non-stick performance： >10 cycles (Fry eggs at 160±10℃)

Corrosion resistance： No blister (Boling 10% salt water (24 hours))

Abrasion resistance 3KG/21cm2： >5000 cycles

Hardness： 2H (ZHONGHUA pencil)

Adhesion (1mm*1mm)： Grade 1

Application

-Inside of tensile aluminum and die-casting fry pan, wok, soup pot, etc. 

Storage and handling

-Available in 20 kg/ barrel or 30 kg/ barrel 

-Store products in tightly closed original containers at 5-35℃

-Shelf life: 6-9 months from delivery date

-According to non-dangerous goods transport

How to use

1. Requirement on pre-treatment

-Firstly, apply high-temperature degreasing, then wash with 1%~3% NaOH solution (60℃) for more than 6 minutes, dry it after water rinsing.

-Blast with 80#~120# corundum to make the surface roughness reach 2.0μ~3.0μ, pay attention to sandblast evenly;

-Wash with 1%~3% NaOH solution(60℃) for more than 6 minutes, rinse with water.

-Wash with 1%~3% hydrochloric acid solution (60℃) for more than 6 minutes, rinse with water and dry.

2. Preparation of the coating

-Dispersion of coating: the coating must be fully dispersed before operation. Rolling the coating at the speed of 30rpm with rolling machine for 30mins, shouldn’t exceed 60 mins.

-Viscosity adjustment: the viscosity could be adjusted according to different spray methods. Dilute with clean water if the viscosity is over high.

-Coating filtration: filtrate the coating with screen (100mesh) before using.

3. Application

-The spraying environment should be dry, well-ventilated, no smoking and fire. We suggest using dedicated spray gun, elevated tank and curing oven.

-The air compressor should be degreased, dewatered and equipped with water oil separator before using.

-Adjust atomization and oil pump capacity of the spraying gun; make sure the unit is clean and flat.

-Preheat the substrate to 35℃ and spray the primer. Dry it at temperature of 120℃~180℃ for 10min-15min. Keep the thickness of primer within 15μm-20μm.

-Spray top coating after the primer is dry and cooling to room temperature, then spray the dot. Dry the unit at the temperature of 150℃~200℃ for 10min~20min, and gradually increase the temperature to 400℃~410℃(the temperature of substrates), keep for 10 min~15 min. Keep the thickness of top coat within 8μm~12μm. The total thickness of final coating film should be between 35μm~45μm.

-In spraying process, keep stirring inside of the elevated tank, the size of spraying nozzle should be between 1.3mm ~ 1.5mm, the pressure is about 2.5-4 bar.

-The oven (or the tunnel drier) must be well ventilated; otherwise, it will lead to color changing of coating.

Non-stick Coating Type

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