Water-based paint

Category:Waterborne ceramic coatings
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Date of issue:2022/07/13
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Detailed introduction

Product application engineering project

Waterborne coatings for Chengdu Metro Line 4

In the application of subway trains, Shenzhen STG Technology Co., Ltd. specializes in producingCurtain Wall Self-Cleaning Paint,Fire retardant paint,Motorcycle temperature-resistant fire-retardant paint , Curtain wall water-based ceramic coating,Water based fire retardant coating and other paint products, because professional and trustworthy!

Product parameters
items	General standard	Notes
Packaging composition	A, B, C three components	A liquid: B liquid: C liquid =66%: 33%: 1% (wt%)
Packaging Unit	7.5Kg/group	Where A: 4.95Kg/barrel, B: 2.475Kg/barrel, C: 0.075Kg/barrel
Appearance	A, colored liquid
	B, transparent liquid
	C, transparent liquid
Film composition	SiO2, Al2O3, others	Depending on color
Specific gravity (g/cm³), 25℃	1.40-1.60	The color of liquid A is slightly different
	0.93-0.97	Liquid B
	1.04-1.08	Liquid C
	1.30-1.50	A+B+C mixture, curing liquid, different colors will be slightly different
Viscosity (sec) Apply 4 cups, 25℃	11~15	A+B+C mixture, aging liquid
Solid Content (N.V%)	53-58%	200℃ for 1 hour
Valid Date	three months	Before blending, 5-25℃
Valid Date	two days	{A+B+C}liquid, curing liquid, 4-8℃
Coating area (m²/kg)	2.0-4.0	Ordinary spray gun, the coating efficiency is 50% (depending on the film degree)
Wash solvent	Water, alcohol, isopropyl alcohol or any ratio of them	For cleaning containers, spray guns or related equipment
Gloss (60°C, %)	50±10	Varies by substrate, film thickness and conditions
Film thickness (μm)	45±10	Depends on the substrate and conditions used

Film performance
Take locomotive interior panel as an example
Experimental project		Test method	results	Test organization and report code
Hazardous Substances Detection	heavy metal content	TBT3139-2006	ND	SGS, report code: SHANGI404437802
	benzene, toluene, xylene content		ND
	toluene diisocyanate content		ND
Adhesion		Use a 2mm blade to draw a checkerboard, and tape 90±30 Seconds, hold the free end of the tape, and as close as possible to 180 degrees, quickly (not bumpy) peel off the tape	4B	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-04
Pencil Hardness		Mitsubishi pencil, at a speed of 0.5mm/s-1mm/s, push At least 7mm distance, repeat the test 3 times	8H-9H	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-05
Moisture Test		Temperature: 50℃. Humidity: 95%Rh. Time: 1000h	After the test, there is no abnormality on the surface of the sample	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-10
Boiling water test		Boil temperature:98±2℃, soaking time: 4h	After the test, there is no abnormality on the surface of the sample	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-11
Oil resistance test		Oil-based pen (red, black, blue), water-based pen formarking,24h.After wiping with solvent	After the test, there is no abnormality on the surface of the sample	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-12
Acid resistance Acid resistance	HCI resistant	5% hydrochloric acid solution/24hrs	After the test, there is no change in the surface of the sample	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-13
	Sulfuric acid resistance	5% sulphuric acid solution/25hrs
	Acetic acid resistant	5% acetic acid dip/26hrs
Alkali Resistance Alkali Resistance	Na2CO3 resistant	Solvent: Na2CO3, Concentration: 5%, Temperature: 25℃, Time: 24h	After the test, there is no change in the surface of the sample	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-14
	NaOH resistant	Solvent: NaOH, Concentration: 0.5%, Temperature: 25℃, Time: 25h
Solvent Resistant		Solvent: BTX, time 72H	After the test, there is no abnormality on the surface of the sample	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-15
		Solvent: Alcohol, time 72H
		solvent: KETONE, time 72
Salt spray resistance test		Solution sodium chloride content: 5%; test temperature: 35℃; Solution pH: 6.8 Duration: 1000H	After the test, the surface of the sample no corrosion	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-16
Weatherability		Irradiance intensity: 60W/m²@300nm-400nm;Blackboard Temperature: (63±2)℃ Water spraying time: 18min Drying time: 102min Drying humidity: 50% State: Continuous light; Duration: 1000h	Gloss change e=4.5% No change in color △E=0.5	Wuxi Kerui Testing Service Co.,Ltd. WX140403- 001-17
Measurement standard: Substrate Aluminum Alloy Plate Coating:1000 Series Porcelain Film Coating Pre-treatment: sandblasting (60# 80#=1:1 Construction method: air spray Curing temperature: 80-100℃/10min,150-260℃/15min