Skip to content
FacebookLinkedinTwitterGoogle+Instagram
Hanna Technology
Hanna Technology
Powder Coating Line | Paint Spraying Equipment

Provide the best powder coating system solution

WahtsApp:+86 186 3213 8668sales@powderspraymachine.com
keywords
  • Home
  • About Us
    • About Us
    • Factory Show
    • Cooperation Customers
  • Products
    • Powder Coating Line
      • Automatic Powder Coating Equipment
      • Manual Powder Coating Line
      • Power And Free Powder Coating Line
    • Powder Coating (Painting) Robot
      • Drag Teaching Programming Robot
      • Visual Automatic Programming Robot
    • Pretreatment System
      • Online Spray Pretreatment
      • Dip Tank Pretreatment
    • Powder Coating Booth
      • Fast Color Change Booth
      • Filter Recovery Powder Coating Booth
    • Powder Coating Oven
      • Camel Back Curing Oven
      • Tunnel Powder Coating Oven
      • Batch Powder Curing Oven
    • Conveyor Chain
      • Automatic Conveyor
      • Power And Free Conveyor
      • Manual Conveyor System
    • Electrocoating Line
    • Electrical Control System
    • Manual Powder Coating Machine
    • Liquid Painting Line
    • Powder Dip Coating Line
    • Powder Coating Powder
    • Powder Coating Machine Parts
  • Application
  • Service and After Sales
    • Service and After Sales
    • Quality Assurance And Service Content
  • Video
  • News
  • Contact
Hanna Technology
  • Home
  • About Us
    • About Us
    • Factory Show
    • Cooperation Customers
  • Products
    • Powder Coating Line
      • Automatic Powder Coating Equipment
      • Manual Powder Coating Line
      • Power And Free Powder Coating Line
    • Powder Coating (Painting) Robot
      • Drag Teaching Programming Robot
      • Visual Automatic Programming Robot
    • Pretreatment System
      • Online Spray Pretreatment
      • Dip Tank Pretreatment
    • Powder Coating Booth
      • Fast Color Change Booth
      • Filter Recovery Powder Coating Booth
    • Powder Coating Oven
      • Camel Back Curing Oven
      • Tunnel Powder Coating Oven
      • Batch Powder Curing Oven
    • Conveyor Chain
      • Automatic Conveyor
      • Power And Free Conveyor
      • Manual Conveyor System
    • Electrocoating Line
    • Electrical Control System
    • Manual Powder Coating Machine
    • Liquid Painting Line
    • Powder Dip Coating Line
    • Powder Coating Powder
    • Powder Coating Machine Parts
  • Application
  • Service and After Sales
    • Service and After Sales
    • Quality Assurance And Service Content
  • Video
  • News
  • Contact

Causes of paint discoloration and prevention methods

The discoloration of the paint mainly refers to the discoloration of the varnish. The varnish was originally a clear, colorless or extremely pale yellow, which turned brown or black after discoloration. The color paint also has a phenomenon of discoloration, which is mainly manifested by the dark color of the color paint.
The reasons for the discoloration of the paint may be as follows:
(1) The storage period is too long and the sediment is discolored.
(2) Gold and silver powder and varnish are prone to acid etching, making the paint color green, dark, and tarnished.
(3) Turpentine oil easily produces reddish brown pigment in iron drums.
(4) The ester solvent in the varnish reacts with the iron container and becomes black after being exposed to water.
The prevention and control method is:
(1) A coating which is discolored by precipitation, if it is not a quality problem, can be used after thorough stirring.
(2) For the shellac varnish which is most prone to discoloration, it is packed in a non-metallic container.
(3) Add gold powder and silver powder before using varnish. Do not store it in varnish too early.

Hebei Hanna technology co ltd,

we web:www.powderspraymachine.com

www.coating-equipment.com

whatsapp:+8618632138668

email:sales@powderspraymachine.com

Share this page
Share with PinterestShare with LinkedInShare with FacebookShare with Twitter

Post navigation

PreviousPrevious post:Special skills and experience in repairing spray gunsNextNext post:Principle and precautions of automatic spray gun

From the Same Category

Chamber curing oven in the powder coating production line (1)
Chamber curing oven in the powder coating production line
2023年2月17日
effectsof the quality of the chain on the conveyor line (1)
3 important effects of the quality of the chain on the conveyor line
2023年2月16日
The correct procedure for using a powder coating chamber (1)
The correct procedure for using a powder coating chamber
2023年2月15日
Workpiece surface phosphating and adjusting the function of the process and control points-1
Workpiece surface phosphating and adjusting the function of the process and control points
2023年2月13日
maintenance of plastic impregnation lines-1
How to perform routine maintenance of plastic impregnation lines?
2023年2月6日
What is the difference of water-spinning wet spray paint booths?
2023年2月3日
Products Category
  • Powder Coating Line
    • Manual Powder Coating Line
    • Automatic Powder Coating Line
    • Power And Free Powder Coating Line
  • Powder Coating Painting Robot
    • Drag Teaching Programming Robot
    • Visual Automatic Programming Robot
  • Pretreatment System
    • Online Spray Pretreatment
    • Dip Tank Pretreatment
  • Powder Coating Booth
    • Fast Color Change Booth
    • Filter Recovery Powder Coating Booth
  • Powder Coating Oven
    • Camel Back Powder Coating Oven
    • Tunnel Powder Coating Oven
    • Batch Powder Curing Oven
  • Conveyor System
    • Automatic Conveyor
    • Power And Free Conveyor
    • Manual Conveyor System
  • Electrical Control System
  • Manual Powder Coating Machine
    • Powder Coating Machine Parts
    • Powder Coating Gun
  • Powder Dip Coating Line
  • Liquid Painting Line
  • Powder Coating Powder
Hebei Hanna Technology Co.,Ltd
  • Telephone
    +86-311-85290395
  • WhatsApp
    +86 18632138668
  • Email
    sales@powderspraymachine.com

Find us on:

Mail
Recent Articles
  • How to design line speed according to production capacity ?
    2021年5月24日
  • Choosing The Right Powder Coating System
    2021年5月18日
  • Coating film quality inspection after painting: double guarantee for appearance and performance
    2023年9月22日
  • Workpiece surface phosphating and adjusting the function of the process and control points-2
    The 3 stages of powder adsorption workpiece in powder electrostatic coating
    2023年9月21日
  • Powder coating principle and film thickness control method
    2023年9月13日
  • Paint coating line vs. powder coating line: a comparison of advantages and disadvantages
    2023年9月7日
  • thickness of the coating in powder dip tank coating line (2)
    Modern sensing and feedback technology in powder coating: the key to precision coating
    2023年8月24日
  • thickness of the coating in powder dip tank coating line (2)
    Powder coating production process, common coating problems and causes
    2023年8月17日
Main Products

Powder Coating Line

Paint Spraying Equipment

Pretreatment System

Powder Spraying Room

Conveyor Chain

Curing Heating System

Contact Us
  • Phone:
    +86-311-85290395
  • Mobile / WhatsApp
    008618632138668
  • Email
    sales@powderspraymachine.com

Find us on:

FacebookTwitterGoogle+YouTubePinterestFoursquare





    © Hebei Hanna Technology Co.,Ltd. 2018. All rights reserved.