EPS: The Environmentally Friendly Replacement for Acid Pickling
Eco Pickled Surface, EPS, is changing the steel industry FOR THE BETTER. This patented process removes mill scale from hot roll black strip steel just as effectively as acid pickling, but uses water and steel grit instead of hazardous acids.
The surface of EPS processed steel is superior to hot roll black, HRPO, pickled dry, dry shot blasted and SCS. It's cleaner, more uniform and inherently rust-resistant in a 'dry' state. – no need for an oil film or other protective coating to prevent rusting. In fact, we offer a No Rust Guarantee for our EPS processing at TMW.
EPS processing offers additional product advantages over acid pickled steel:
- Superior Paint Adhesion and Corrosion Resistance
- Surface Roughness, Ra, Optimized for Paint Performance
- Mitigates Defects Like Pitting, Roll Marks, Silicon Streaks
Now service centers, processors and mills can offer EPS pickling and surface enhancement to their customers in coil, sheet or plate form. Compared to acid pickling, EPS production lines offer:
- 20% Less Capital Cost • 30% Lower Operating Cost
An EPS line needs only half the floorspace of an acid pickling line, and EPS modules can even be incorporated into existing acid pickling lines to increase line speed or replace acid tanks (get details).
Product Advantages Proven
In Labs and Fabrication Shops
EPS processed steel offers manufacturers many advantages over hot roll black, HRPO, pickled dry, SCS and dry shot blasted steel. The advantages have been proven through rigorous testing in accredited labs and on the production floor.
For example, EPS exceeded industry acceptance criteria in all automotive OEM paint performance tests it has undergone. In side-by-side tests against P&O and SCS samples from the same coil, EPS performed better in salt spray tests, paint adhesion tests and laser cutting speed tests. For complete documentation see the EPS Application Test Report.
- Faster Laser & Plasma Cutting
- Reduction in Toxic Welding Fumes
- Stronger Welds, More Uniform Bead
- Transform Rusted Coils into Prime
- Substantial Reduction in Paint Pretreatment
- Superior Base for Cold Rolling, Coil Coating
- No Rusting of Stock Steel or Finished Parts
- No Oil Means Cleaner Shop Environment
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