How to improve the hardness of paint?

2022-01-19   Pageview:492

Tianshi polyethylene wax and PTFE micro powder are both easy to disperse and can be used in plastic coatings, wood paints, powder coatings, coil coatings, UV light-curing coatings and various solvent-based ink products, used in materials with low temperature requirements to improve their wettability and resistance to scratch and slip.

China’s paint coating system, solvent-based still accounts for the absolute majority.

1, mainly attributed to certain performance of water-based baking paint and solvent-based baking paint compared to the existence of a large gap, for example: the dry film solvent resistance (such as MEK), resistance to RCA paper tape abrasion test and other performance than solvent-based baking paint is far from;.

2, the domestic water-based baking paint can not be popular with the customer’s existing production line has a great relationship: At present, the vast majority of solvent-based baking paint production line is 160 ℃ × 10 min drying conditions, while the current market of high-performance water-based baking paint must meet 170 ~ 180 ℃ × 30 ~ 20 min baking conditions to achieve good film performance.

In order to meet this drying condition, manufacturers must extend the production line and increase the baking temperature, thus, invariably increasing the investment and energy consumption of manufacturers. Even if a manufacturer is interested in using high performance waterborne baking paints, the increased investment and energy consumption will result in lower profits and discourage the manufacturer.

As people’s awareness of environmental protection continues to increase, the community’s environmental requirements for paints will become higher and higher, and the VOC content of paints will become stricter and stricter. Therefore, changing solvent-based coatings to water-based coatings will be the trend, and it is urgent to design and develop a water-based coating that matches with the existing spraying line.

At the same time, for water-based coatings, the arrangement of metallic effect pigments such as aluminum silver powder and pearlescent powder is also a challenge for the formulator!

How to improve the hardness of the paint? Micronized PE wax is a non-toxic, tasteless, non-corrosive, white or slightly yellowish solid with relative molecular mass of 1800-8000. polyethylene micronized wax should be widely used because of its excellent cold resistance, heat resistance, chemical resistance and wear resistance.


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