Anti-corrosion systems: ISO 12944 standard ranges from C1 to C5.

Corrosion is the phenomenon in which materials—primarily metals—undergo chemical or electrochemical reactions with their surrounding environment, leading to a deterioration of their performance. In the fields of construction, industry, and marine engineering, corrosion prevention has always been a critically important issue. Whether it’s towering steel structures reaching into the clouds or offshore facilities deep beneath the sea, corrosion can become a source of safety hazards. The international standard ISO 12944 is the most widely used standard for specifying corrosion protection levels and is extensively applied in the protective design of steel structures, industrial equipment enclosures, and outdoor equipment.

Waterproofing Solution for the Bottom Edge Plate of Steel Storage Tanks

Currently, the conventional practice for waterproofing tank bottom plates in China involves sealing joints with asphalt or applying asphalt-sand coatings. Some also use rubber-modified asphalt or epoxy glass cloth for waterproofing. However, the former suffers from poor aging resistance and insufficient bonding strength, while the latter exhibits poor elasticity, leading to cracking and delamination after use—both resulting in less-than-ideal performance. Additionally, there has been an attempt to employ ternary ethylene-propylene-diene monomer (EPDM) rubber sheets for corrosion protection; yet, their surface tends to crack easily, thereby losing their waterproof and anticorrosive effectiveness. In response to these issues, our company has conducted on-site investigations and research, and has developed a highly effective and comprehensive waterproofing and anticorrosion solution. Specifically, building upon our CTPU elastic polyurethane waterproofing coating, we have adjusted the formulation by adding a certain amount of filler to create granular compounds and paste-like materials. We then employ a construction technique that involves laminating polyester waterproof mesh fabric to enhance the coating’s strength, thereby effectively blocking the pathways through which corrosive agents such as rainwater and dew can penetrate the edge plates and tank bottom plates, thus achieving the goal of protecting the tank bottom plates.

Dust off the old and start a new journey together.

As the year-end chimes draw near, and to bid farewell to the old year and welcome the new spring, a warm and enthusiastic clean-up has quietly begun at the company. Employees have transformed into artists of daily life, meticulously refining every corner of the workspace with their deep affection for their work environment.