The mainstream classification of zinc paste revolves around the protection requirements, construction conditions, functional characteristics, and other dimensions of industrial scenarios, covering the metal maintenance needs under different working conditions. The specific classifications are as follows:
1、 Classified by Zinc Powder Content
Low zinc type zinc paste: With a zinc content of 30%~50%, it focuses on low cost and only meets basic rust prevention needs. It is suitable for daily maintenance of ordinary metal components in low corrosion environments.
Medium zinc type zinc paste: with a zinc content of 50%~80%, it balances protection and construction convenience, and is currently the mainstream category with the highest market share, suitable for the vast majority of conventional industrial scenarios.
High zinc type zinc paste: with a zinc content of over 80%, it has extremely strong anti-corrosion performance and can be adapted to high corrosion extreme working conditions such as coastal high salt spray and chemical workshops.
2、 Classified by dispersed solvent type
Water based zinc paste: using water as the dispersing medium, low VOC, environmentally friendly and odorless, without flammable and explosive risks, suitable for indoor enclosed spaces and construction scenes with environmental requirements.
Solvent based zinc paste: using organic solvents as carriers, the coating has stronger adhesion and better outdoor weather resistance. It can withstand a wide temperature environment of -40 ℃~120 ℃ and is suitable for outdoor work scenarios.
3、 Classified by core functional purpose
Anti rust special zinc paste: It focuses on basic anti rust protection and is commonly used for daily maintenance of ordinary steel structures, construction machinery, and outdoor metal components. It is the most widely held category in the market.
Conductive and Thermal Conductive Zinc Paste: A high zinc content formula specifically used for conductive and thermal filling of electronic and electrical components, suitable for industrial scenarios with requirements for electrical conductivity.
High temperature anti sticking zinc paste: added with high temperature resistant additives, can withstand high temperatures above 1000 ℃, and is mainly used for thread and bearing assembly under high temperature conditions to avoid component adhesion and sticking due to high temperature.
4、 Classified by curing characteristics
Self drying zinc paste: It naturally dries and solidifies at room temperature without the need for additional heating or baking. The construction threshold is low, and ordinary workers can directly apply it, making it suitable for outdoor construction scenes on site.
Baking curing zinc paste: It needs to be baked at high temperatures of 180 ℃~220 ℃ to form a film, with higher coating hardness and longer protection life. It is commonly used in batch pretreatment scenarios for prefabricated components in factories.