Unistrut Surface Finishes Key to Durability and Performance

In demanding industrial environments where harsh corrosion constantly threatens equipment and structures, selecting the appropriate surface treatment for Unistrut support systems becomes crucial for ensuring long-term durability and reliability. Unistrut offers multiple surface treatment options, each designed for specific applications and performance requirements.

Unistrut support systems are renowned for their flexibility and reliability, with surface treatments playing a critical role in their performance across various environments. Different treatments provide varying levels of corrosion resistance, durability, and aesthetic qualities.

This standard treatment involves immersing steel components in a zinc-ion solution through electrochemical deposition. The resulting zinc layer (0.2-0.5 MIL thickness) offers cost-effective protection for dry, non-corrosive environments.

• Advantages: Cost-effective, smooth finish, suitable for indoor use
• Limitations: Moderate corrosion resistance
• Applications: Indoor pipe supports, light equipment mounting

The standard treatment for Unistrut channels involves coating steel strips before cold-forming. With 0.75 MIL zinc thickness, it provides better outdoor protection than electro-galvanizing.

• Advantages: Uniform coating, good outdoor durability
• Limitations: Not for severe corrosive environments

Similar to electro-galvanizing but with a gold hue (0.5 MIL thickness), this treatment is ideal for electrical applications and static-sensitive areas like data centers.

This advanced coating outperforms conventional treatments in resisting chalking, cracking, and fading while withstanding acidic gases and chemicals. Its eco-friendly formulation eliminates toxic metals.

• Applications: Chemical plants, wastewater facilities, coastal areas

Untreated carbon steel with temporary oil coating is weld-friendly and economical, typically requiring secondary finishing like painting.

With 2.6 MIL zinc thickness from molten zinc immersion, this offers superior corrosion protection for severe environments.

• Applications: Marine settings, chemical plants, heavy structures

Available in 304 and 316 grades, stainless steel provides unmatched corrosion resistance and hygiene, though at higher cost and longer lead times.

These extruded profiles offer lightweight corrosion resistance for weight-sensitive applications, though with lower strength than steel.

This multi-layer patented system (zinc, epoxy, UV-resistant topcoat) delivers ultimate protection for extreme industrial environments.

Choosing the optimal treatment requires evaluating:

• Environmental conditions (humidity, chemicals, temperature)
• Required service life
• Budget constraints
• Aesthetic requirements
• Regulatory compliance

By carefully matching surface treatment properties to application demands, users can ensure optimal performance and longevity for their Unistrut support systems across diverse operating conditions.