The electroplating industry relies on 4 main types of flexible hoses. Each is designed to resist corrosive chemicals and handle high-pressure flows. Below are the key kinds and their uses.
1. PTFE Flexible Hoses
First, PTFE flexible hoses are the top choice. They resist nearly all electroplating chemicals, including sulfuric acid and nickel plating solutions. Their non-porous inner lining doesn’t absorb chemicals, so no cross-contamination occurs. PTFE hoses also handle high temperatures (up to 260°C), which works for heated plating baths. They’re flexible enough to route around tanks and machinery, making them ideal for most electroplating lines.
2. EPDM Rubber Flexible Hoses
Next, EPDM rubber flexible hoses suit less aggressive chemicals. They work well with alkaline solutions used in pre-plating cleaning. EPDM hoses are durable, cost-effective, and easy to maintain. However, they can’t handle strong acids. So they’re often used for non-plating steps, such as rinsing parts after cleaning.
3. PVDF Flexible Hoses
Third, PVDF flexible hoses excel at heavy-duty electroplating. They resist strong acids and high pressures, which is needed for high-volume plating operations. PVDF hoses are also UV-resistant, so they work for outdoor plating setups. Their flexibility is lower than PTFE, but they’re more impact-resistant—great for busy factory floors.
4. NBR Flexible Hoses
Finally, NBR flexible hoses are used for oil-based electroplating steps. They resist mineral oils and greases used in lubricating plating equipment. NBR hoses are affordable and flexible, but they can’t handle chemicals—so they’re only used for non-chemical parts of the process, like transferring lubricants to pumps.