Fume Hoods for Wet Chemical Processes

A fume hood offers a safe way to contain and ventilate hazardous fumes. Wet chemical processes often call for the use of a fume hood. Industrial chemical fume hoods are used in a variety of applications, from laboratory chemical research to full-scale manufacturing with wet chemical processes like electropolishing, passivation, part etching, and semiconductor wafer processing.

Typical construction materials for industrial fume hoods depend on the chemical handling properties required for the application, but commonly can include: polypropylene, stainless steel, PVDF, Teflon® / PFA, or ECTFE (HALAR®). Lab fume hoods can be as simple as polypropylene polymer-based tanks with an enclosure to contain and ventilate vapors from the manufacturing or lab process.

Below are a few examples of systems built for customers in various applications and industries like: medical device, semiconductor, and aerospace.

Multistage wet process fume hood with in-tank heat and circulation pumps

System includes rear tank venting exhausted from top of system, with integrated rectifiers for electropolishing and pumps for electrolyte circulation.

3-Stage Chemical Etching and Passivation Fume Hood

System includes rear tank venting on two tanks and fresh water rinse in the third tank.

Nitric Passivation Enclosed Chemical Fume Hood

Semiconductor Wafer Chemical Processing Fume Hood

System includes large integrated PVDF tanks with water, air and nitrogen guns and magnehelic pressure gauge for ensuring proper ventilation requirements.

Common Applications for Industrial Fume Hoods

• Medical device stent polishing and deburring of stainless steel and cobalt chrome
• Industrial, aerospace and medical device stainless steel passivation per ASTM A967
• Printed circuit board and silicon semiconductor photoresist stripping using chemistry like ACT970 etch residue remover and others
• Medical device electropolishing of titanium (Ti) or nickel titanium (nitinol) which requires exhausting using a fume hood

Common Configurations

Since fume hoods are made from highly customizable materials like polypropylene, stainless steel, and PVDF, as well as Teflon® / PFA, and ECTFE (HALAR®), Best Technology is able to easily build a fume hood to fit customer-specific wet chemical process and lab requirements.

Ready to expand your wet chemical processing capabilities? To get your project started, contact a fume hood expert at Best Technology to discuss your project and receive a free quote.