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Description

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

l  Eco-friendly and PFOA free

l  Showing the effect of natural marble

l  Excellent chemical resistance and abrasive resistance

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

Typical Properties

APPLICATION

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

Storage and Handling

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

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

l  Shelf life: 6-9 months from delivery date

l  According to non-dangerous goods transport

How to use

1.      Requirement on pre-treatment

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

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

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

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

2.      Preparation of the coating

l  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.

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

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

3.      Application

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

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

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

l  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.

l  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.

l  In spraying process, keep stirring inside of the elevated tank, the size of spraying nozzle should be between 1.m ~ 1.5mm, the pressure is about 2.5-4 bar.

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