Wet Bench / Fume Hood for Electropolishing, Citric / Nitric Passivation, and Wet Chemical Processing

System Description

Common Applications

Common Configurations

Our wet bench and fume hood systems are used for wet chemical handling of various applications, electropolishing and/or citric / nitric acid passivation as well as other chemical wet process applications. Typical construction materials include polypropylene, stainless steel, PVDF as well as Teflon®, PFA, and  ECTFE (HALAR®) depending on the chemical handling properties required for the application.  Our manufactured wet benches include simple polymer based tanks typically made from polypropylene (PP).

Part Cleaning, Passivation, Electropolishing Wet Bench with Ultrasonics

This integrated wet bench has intank cross flow exhaust allowing for cleaning, rinsing, passivation and final rinsing in an open top wet bench.

Enclosed Fume Hood Wet Bench for Electropolishing and Nitric Acid Neutralization / Passivation with Exhaust

Above enclosed wet bench allows for post clean processing electropolishing, rinsing, nitric acid neutralization and passivation, and a final rinse.

Enclosed Fume Hood Nitric Acid Passivation Wet Bench with Rear & Top Exhaust

Nitric passivation with cascade overflow rinse stations and side flow & top exhaust

Large Scale Electropolishing in Separate Tanks and Side Exhaust

Integrated multistage wet bench allows for complete part processing through wash, rinse, deoxidation, rinse, electropolish, rinse, nitric neutralization, rinse, final rinse

Wet Bench for Semiconductor & Other FM 4910 Applications

Our wet bench systems are used for semiconductor chemical handling of various applications, electro-chemical processing and/or acid processing as well as other chemical wet process applications.

Common Applications for Wet Benches and Chemical Handling Benches

• Medical device stent polishing / deburring of stainless steel and cobalt chrome
• Industrial, aerospace and medical device stainless steel passivation per ASTM A967 with:
  • Nitric acid passivation type 1, 2, 3, 4 with sodium dichromate
  • Citric acid passivation type 1, 2, 3, 4, & 5 ASTM A967 using Stellar Solution’s Citrisurf
• Printed circuit board and silicon semiconductor photoresist stripping using chemistry like ACT970 etch residue remover and others
• Medical device electropolishing of titanium (Ti) and nickel titanium (nitinol) which require exhausting

Common Configurations

Since the wet bench equipment are made from highly customizable materials like polypropylene, stainless steel, PVDF as well as Teflon®, PFA, and  ECTFE (HALAR®), Best Technology is able to easily build a wet bench to fit the customer specific wet processing chemical requirements.

Our wet benches ensures well ventilated process enclosures for repeatable surface treatment processes for industrial, medical device and aerospace metal parts.