Physical index of AQUATIX 8421

2021-12-11   Pageview:299

Brand: BYK
Model: AQUATIX 8421
Product properties: Wax emulsion of ethylene vinyl acetate copolymer (EVA)
Non-Volatile Component: 20 %
Carrier: water
Melting point (wax component): 105 °C
Viscosity (23 °C, D=400/s): < 100 mPa-s
pH value: 5.5
Applications: automotive coatings, industrial coatings, wood and furniture coatings, leather coatings

Wax emulsion of ethylene vinyl acetate copolymer (EVA) with rheological properties to improve the orientation of effect pigments in aqueous coatings.

 

 

 

 

 

 

 

 

 

 

 

 

Due to the short compilation time and the limited scope of data collection, the problems reflected may not be comprehensive. It is inevitable that there are some points in some points of view. We hope that the majority of readers will provide valuable opinions.

In the process of writing this book, Jin Shunyu, Nanyan senior engineer, and Nanxuan engineer participated in part of the work; at the same time, they also received help and support from colleagues in the industry in terms of technical materials; in addition, they also received Shandong Longfabo Powder Coating Technology I would like to express my heartfelt thanks for the concern and support of the chairman and general manager of the company!
The first section of the development history and current situation of powder coatings and coating technology
Since the world oil crisis occurred in the early 1970s, powder coatings and coatings have become a rapidly developing new coating product and The new process has now become a recognized 4E type coating product that meets high production efficiency (el ficiency), excellent film performance (excel ence), ptfe modified pe wax application eco-environmental protection (ecology) and economy (eeo no my), and has won the world’s paint and The coating industry attaches great importance to it and has become the fastest growing variety among various coating varieties.

Powder coatings are generally composed of resins, curing agents (not required in thermoplastic powder coatings), pigments, fillers and additives (including leveling agents, brighteners, deaerators, dispersants, matting agents, matting curing agents, bulking agents, Texture agents, UV absorbers, antioxidants, plasticizers, tougheners, corner coverage modifiers, anti-caking agents, etc.). The main components are similar to solvent-based coatings or water-based coatings. However, the manufacturing method and construction method are completely different from traditional solvent-based and water-based coatings. Traditional coating manufacturing equipment and coating equipment cannot be used. Generally, melt extrusion mixers and air classifying mills are used in manufacturing equipment. lassi lying mill. Namely ACM mill) and other special equipment: In the construction, electrostatic powder coating method and fluidized bed dip coating method are used.

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