exterior cookware spray coating high temperature ptfe nonstick coating

Description

Water based fluororesin non-stick coating PF-600 is designed with two-layer coating system. Thanks to its high density, good inadhesion, easy-to-clean performance and strong practicability. It is applicable for substrates like aluminum, alloy and stainless steel etc. 

paints coatings nonstick nonstick spray SINOGRACE Chemical is the high quality supplier of ptfe nonstick coating from China for more than 20 year.

Type

Water based fluororesin

We are very happy to introduce you cookware spray coating which is our key product since from 2001 when our company established. 

Key features

-Environmental protection
-Excellent heat resistance
-Excellent chemical resistance and wear resistance
-Excellent durable non-adhesive properties, easy to clean 

Typical properties

Appearance:                                   Black liquid (Primer and top)

Solid content (%):                           35±1

Viscosity (cp):                                  600~1000 Primer

                                                        400~800 Top

Density (g/ml):                                 1.20 Primer/1.30 Top

pH:                                                   8-11 (Primer and top)

Color of the film surface:                  Black with metallic (Flat and smooth)

Curing temperature (℃):                  380-420

Gloss (60° glossimeter):                  10-20

Film thickness (μm):                         20-30

Non-stick performance:                    >10 cycles (Fry eggs at 170±10℃)

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

Abrasion resistance 3KG/21cm2:     >3000 cycles

Hardness (ZHONGHUA pencil):         >H

Application

-Aluminum, die-cast aluminum, alloy and stainless steel

-Frying pan, stock pot, baking tray, electric fry pan and inner pot of electric cooker etc.

Storage and handling

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

-Store products in tightly closed original containers at 5-40℃

-Shelf life: 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;

-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;

-Roll the coating at 30rpm speed before using to make sure there is no sediment, and filter with 100 mesh screen;

-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℃~150℃ for 10min-15min. Keep the thickness of primer within 12μm-18μm;

-Spray top coating after the primer is dry and cooling to room temperature, then spray the top. Dry the unit at the temperature of 100℃~150℃ for 10~20 min, and gradually increase the temperature to 380℃~420℃. Keep for 10 min. Keep the thickness of top coat within 10μm~12μm. The thickness of two coat tally should be between 20μm~30μm;

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

Non-stick Coating Type

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