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Shanghai Mingjia New Material Technology Co., Ltd

VN-MGHE series ceramic coating manual

1. Coating parameters

Test item primer top coat Remarks
1)	viscosity	11~15 seconds	11~12 seconds	T-4# cup, 25°C
2)	Solid content ≥	About 53%	About 30%	*After maturation and baking
3)	density	1.25±0.05g/cm3	1.05±0.05g/cm3	20℃
4)	Film thickness is recommended	25-30μm	10 μm	Film thickness gauge measurement
5)	Theoretical coating area	4~6m2/ kg		The coating efficiency is calculated at 50%
6)	diluent	isopropyl alcohol or deionized water
7)	cleaning	water, alcohol, isopropyl alcohol, or a mixture of any proportion thereof

2. Coating performance

Test items Test method technical specifications
1)Appearance	Visual	Flat, smooth and shiny
2) Gloss	Glossy instrument	≥50
3) Surface hardness at room temperature	Mitsubishi pencil, 45° angle direction, 10 mm parallel strokes with 10N force, repeated test 5 times	≥8H
4)Ambient adhesion	The Baige method uses the tip of a sharp single-sided blade to cut parallel and vertical cuts on the coating film respectively, and the depth requires penetrating the entire thickness of the paint film to form 100 square grids with the spacing of the cuts 2.0mm, peeled off with 3M-898 tape and without jagged chipping per scratch	≦ level 2
5) Heat resistance	The sample is heated at 400°C in a muffle furnace for 24 hours, taken out and cooled to room temperature for a hundred grid experiment	The coating does not peel, does not crack, allows for slight discoloration
6) Impact resistance	Drop from a height of 50 cm with a steel ball of 500±1 g	The coating does not peel off
7) Cold and thermal shock resistance	The experimental substrate was heated to 300°C, kept for 2 minutes, and then rinsed with cold water to cool down sharply, counting a cycle. Perform 10 cycles in a row	The coating does not peel off and does not crack

8)Plane wear test	3M7447B scouring pad (5cm×5cm) moves horizontally by 10 cm at 15N pressure, a back-and-forth count, every 1000 times to replace a new scouring pad	≥ 50,000 times
9) Acid resistance	5% sulfuric acid solution 4/5 soaked for 24 hours; 5% acetic acid is slightly boiled for 24 hours;	No foaming or paint stripping
10) Alkali resistance	5% sodium carbonate solution 4/5 soak for 120 hours	No foaming or paint stripping
11)LGA test	Wear meter 4mm steel ball, P20, 300rpm/min	≦ 3 points
12) Resistant to boiling water	Deionized water is boiled continuously for 24 hours	No foaming or paint stripping
13) Corrosion resistance	5% neutral sodium chloride solution boiled continuously for 24 hours	No foaming or paint stripping
14) Weather resistance	Artificial accelerated aging for 1000 hours	Loss of light level 1, chromatic aberration △ E=0.2
15) Abrasion resistance and non-stick	Wear-resistant and non-stick: 1.5 kg dry grinding * 500 times to replace 7447C scouring pad * 1000 times to fry eggs once, you can fry eggs 5 times More than one cycle, each time the first level is non-stick. (film thickness primer about 25 μm, top coat about 10-15 microns).	Eggs taken out without damage belong to the first level of non-stick;
16) Non-stick test	150-160° oil-free fried egg test	≥200
17)High temperature non-stick	280°× oven for 30 minutes× 10 eggs = 10 cycles	Eggs can be removed without damage
18)Dishwasher tested	15g dishwashing powder90 minutesFry milk once per cycle*50 cycles	The coating does not lose its luster; Milk can be flushed off;
19)Pizza test	1. 300 grams of flour + three eggs + 1000 grams of milk + 1 gram of salt and stir well. 2. 7447C scouring pad + 05 kg weight + 500 times of wear resistance (250 times of changing scouring pads).3, 1 heat the pot at about 95°C for five minutes; Pour the mixture at room temperature and fry the pancakes, pancake time 420 seconds, the online temperature is 195°C.4, and more than 6 cycles are qualified	More than 6 cycles.

3. Painting construction guidance

l Substrate: iron, aluminum, cast aluminum, stainless steel injection.

l Sandblasting: Use 60 mesh: 80 mesh = 1:1 brown fused alumina sand or white fused alumina sand, and the surface roughness of the workpiece after sandblasting is 3.0~3.5μm

l Dust/oil: Remove sand and dust on the surface, and ensure that the surface of the workpiece is clean and free of oil stains or other foreign matter.

l Substrate preheating: The workpiece temperature needs to be heated to 50-60° before spraying.

l Construction method: conventional air spray gun, recommended spray gun caliber primer: 1.3mm, top coat 0.8-1.3mm.

l Curing baking temperature: 280 °/10-15 minutes

4. Maturation and filtration

1)Temperature control The maturation environment and coating temperature are kept at 20~25°C;

2)The primer A component and the topcoat B component are pre-rolled, and the paint bucket rotation speed is 120~150 rpm until all the precipitate is dispersed and there is no precipitation.

3)Mix the [B] component and the C component [catalyst] first, then add the [A] component and tighten the cap, and shake quickly for 10~ 20 seconds;

4)The maturation paint barrel is rolled at a speed of 120~150 rpm for more than 6-8 hours. (The maturation time is related to temperature and speed);

5)Filter with a 300-mesh filter cloth before use. (Add pearlescent powder after straining the topcoat).

5. Storage

The paint is valid for more than 90 days under the condition of 5~25°C before maturation, and should be sealed and stored in a cool, ventilated and dry room, avoiding direct sunlight and away from fire sources. Once the paint has matured, use it within 48 hours. If there is a part leftover, please store it in an environment of 5~10°C, and when using it after refrigeration, you must wait for the paint to heat up to room temperature (20~25°C) before use.

Shanghai Mingjia New Material Technology Co., Ltd

Address: No. 130, Muhua Road, Shanghai Chemical Industry Zone Tel: 13120910988

Fax: 021-67121456

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