Regarding Steel Drum Coating, Several Commonly Overlooked Issues
Steel drum painting does not require cutting-edge high technology. Mastering some operational skills and correct specifications is necessary for suitable painting of steel drums to achieve desired results. The following topics including technical specifications and process discussions outline steel drum painting: 1) Surface pretreatment of steel drums; 2) Type of coating; 3) Coating equipment; 4) Coating film formation.
Surface pretreatment of steel drums
Any item to be painted requires an appropriate substrate state and the surface should be maintained before coating to ensure that the coating can adhere reliably to the metal. In some special production environments for steel drums, such as in factories along the coastal areas where there is salt in the air, rust-proof oil needs to be applied on the steel plate to protect the steel drum from corrosion. The process of this system treatment is critically important for obtaining good surface quality of the steel drum before painting.
Type of coating
In the world of steel drums, there are many different components, and coating technology has made great progress and innovation in the past decade. Each innovation has its own unique features, such as aesthetics, mechanical, chemical, or compliance with today's environmental regulations, etc. In fact, coatings today can be classified into three types:
Solvent-based coatings;
Water-based coatings;
Powder coatings.
Solvent-based coatings are a steel drum coating system that has developed independently in the past decade. Perhaps solvent-based coatings are the most widely used steel drum coatings to date. The development of certain coating technologies has required years of research to protect the steel drum surface: they are elegant and can not only protect the metal surface, including the steel drum closures, from external corrosion, but also resist corrosion by various chemicals in the container.
Coating equipment
The feed rate of steel drums in spray booths must be given an accurate and fast timing output, but such speed must also be uniform and stable to avoid steel drum shaking or falling off the spray production line. During the entire spray cycle, the rotational speed of the steel drum requires a constant value with a fixed action program. In order to save paint and limit environmental pollution, paint overspray must be restricted. Unfortunately, this cannot be completely avoided, so a properly dried or water-curtain absorption system is essential. The high-speed rotating spray disk is currently the main method for interior spray painting of drums. This device can achieve a constant coating thickness along the entire length of the drum barrel.
Coating film formation
After spraying water-based, solvent-based or powder coatings on steel drum surfaces, they must be dried at a certain temperature and time. Different types of coatings have different standards, curing conditions, and quality inspection characteristics.
Prolonging the Lifespan of Tab Seals for DrumsJanuary 18, 2024Tab Seal for Drums are essential components that contribute to the longevity and durability of drums. As a drummer, you know the importance of maintaining these seals to ensure optimal performance. In...view
China Independent Brand ExpoJuly 1, 2022During the exhibition, CNPC was invited to participate in the "Chinese Enterprise Brand Building Sub-Forum" by the State-owned Assets Supervision and Administration Commission."Lubricat...view
The Prospect Of Industrial Waterborne Coating Is Bright!June 30, 2022In recent years, profound changes have taken place in the understanding and imagination of coatings in China, and the output of environmentally friendly coatings has increased year by year. From tradi...view
Importers Should Pay Special Attention To Take What Measures?July 4, 2022First, it is necessary to make clear the type of the product, to determine whether it belongs to the scope of application of the above-mentioned national standards, when coating products are applicabl...view
Vale's Chief Executive Says Iron Ore Is Not In A SupercycleJuly 1, 2022Iron ore is not starting a new supercycle, according to Vale chief executive Eduardo Bartolomeo. In a FinancialTimes interview, the ceo estimates that demand will level off in two years.Bartolomeo say...view