What are the color and material standards for the surface of stainless steel water bottles? What should be paid attention to in daily use?

Many of the stainless steel water bottles purchased by everyone are painted or powder coated on the surface, some are glossy and some are matte. Many friends have found that some paints have poor surface adhesion and begin to peel off after a period of use. The occurrence of such problems is due to production processes, as well as the use of paint or color powder on the surface of stainless steel water cups that does not meet the execution standards.

1、 Must meet food safety standards

Both national and international industry standards have clear requirements for the paint used on the surface of water bottles to be food grade and not harmful to human health. When purchasing a water bottle, it is advisable to ask the product salesperson whether the paint or color powder used on the surface of the water bottle is food grade and meets food safety standards.

Based on Doyoung’s over ten years of industry experience, most water cup manufacturers use paints that meet food safety standards when producing water cups. However, some unscrupulous manufacturers do not use food grade paint or color powders in order to gain more market profits. It is difficult for consumers to distinguish from the processed effect. Therefore, in the procurement process, if a product with a very low price is encountered, the first consideration should be whether the manufacturer used non food grade paint or color powder on the materials, resulting in a reduction in costs.

2、 Wear resistance and high temperature resistance of paint or color powder

At the beginning of the article, it was mentioned that the paint on the surface of the water cup would peel off after a period of use. The main reason for this is that the paint’s high temperature resistance does not meet the standard. Both are food grade paint materials, including low-temperature quick drying paint and high-temperature paint. These two methods not only have a significant cost difference, but also have a lot of differences in production management, which ultimately directly affects the production cost of water bottles.

At present, some water cup production factories do use low-cost low-temperature quick drying paint to achieve the goal of reducing manufacturing costs. Here is a simple explanation. Compared with high-temperature paint, low-temperature quick drying paint uses lower electricity consumption for baking temperature and saves more labor and energy costs for baking time.

For wear resistance, it can be simply understood as the higher the baking temperature and longer the baking time of the paint material, the better the wear resistance will be. That’s why people have found that stainless steel water bottles purchased with colored powder on the surface are more wear-resistant than those sprayed with paint. The stainless steel water cup with powder coating has a higher baking temperature and longer baking time.

3、 Avoid using paints containing harmful substances

Some unscrupulous manufacturers spray non food grade paint on stainless steel water bottles in order to save costs, with the aim of improving the adhesion of the paint, as well as enhancing the texture and saturation of the paint, making the finished product of the water bottle look more pleasing to the eye. These special paints may pose potential hazards to human health, especially those with excessive lead and mercury content. To avoid choosing unsafe products, consumers can check the product’s environmental certification, testing reports, and other information to determine if it meets relevant safety standards.

4、 Precautions for daily use and maintenance for stainless steel water bottle

The main thing is to regularly clean the paint on the surface of the water cup. During daily use, it is inevitable that beverages will adhere to the paint surface. Some beverages are corrosive, and if not cleaned in time, it may cause the paint to discolor and even peel off. When cleaning water bottles, we also try to choose weakly acidic detergents, avoid using hard brushes during cleaning, and try to avoid vigorous cleaning to avoid scratching the paint surface. Affects aesthetics and service life. When storing the insulated cups we use, we should keep them away from corrosive or soluble chemicals. For example, storing them in an environment with high salt concentration can also damage the paint.

Doyoung hereby promises that our products comply with international market standards and use food grade materials. During the procurement process, we will provide you with product identification certificates, product quality assurance agreements, and other relevant documents. Ensure that customers can obtain the highest quality products at the best price. Our company’s business philosophy has always been to maximize the benefits for our customers.

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