Protect Glovebox with Halar or Kynar Coating
Choosing the Right Stainless Steel
Inert gloveboxes are typically made from 304 stainless steel, which offers great long-term resistance to most of the risks encountered inside a glovebox. However, some applications that involve acidic solutions and vapors require stainless steel with enhanced resistance. Stainless Steel 304L or 316L, both of which have low carbon content, provide better corrosion resistance than standard 304 or 316.
For customers working with sulfuric acid, hydrochloric acid, or nitric acid, even in very low volumes, these substances can degrade the glovebox quality over time. Additional protective measures must be taken.
Halar or ECTFE Coating
Halar (ECTFE) coating is one of the most chemically resistant polymers available today. We use it in our gloveboxes for corrosion protection in various industries, such as dental, nuclear, and radioisotope industries, as well as other sectors dealing with reactive agents. Halar is applied to gloveboxes with rounded corners to ensure a uniform coating over the entire surface.
Halar coating is available in several colors, including green and white, and can also meet FDA regulations for use in pharmaceutical environments. The coating is applied in thicknesses ranging from 400 to 600µm, and needs to be baked at high temperatures. This process requires extreme precision from our metalworkers to account for thermal expansion while ensuring the glovebox remains perfectly sealed.
Key Features of Halar:
Mechanically tough with excellent cut-through and abrasion resistance
Dimensionally stable
Resistant to Cobalt-60 radiation
Does not contaminate high-purity fluids
Smooth surface
PVDF Coating
Kynar (PVDF) is another popular coating used on gloveboxes in the industry. Kynar is a strong, pure, and highly resistant material, applied mostly on stainless steel and aluminum, providing excellent resistance to acids, bases, and heat. It also offers great radiation resistance and can be used in a wide temperature range, from -20°C (-4°F) to 150°C (300°F).
Like Halar, Kynar is applied via spray and baked in ovens at high temperatures. Kynar is white and provides excellent chemical and abrasion resistance. Its properties are very similar to Halar, making it ideal for most glovebox applications in the nuclear industry.
Customized Solutions for Your Needs
Our engineering team is dedicated to designing gloveboxes that meet your specific needs and process requirements. Don’t hesitate to contact our sales team to discuss your project.