Tri-Mer plating tanks were originally designed for use in hardcoat and hot anodizing operations, where continuous extreme temperatures (32°F, up to 85°F and above) are standard.
Tri-Mer plating tanks are fabricated using a proprietary protocol that assures seamless structural integrity and full strength at all bend sites. The POSCO tanks were engineered by Tri-Mer to close (±1.5") tolerances, to fit an existing configuration with strict space limitations. They replaced four steel/ rubber brick-lined tanks, which were demolished as part of the project.
Each Tri-Mer polypro tank is manufactured from 1.5" pre-stressed polypropylene sheet, and is 60' x 6' x 3'. Tank #1 operates 30% sulfuric acid at 212°F. Tank #2 is a mixed acid (30% nitric, 15% hydrofluoric) tank operating at 176°F.
The remaining tanks are a uniquely engineered configuration of “two tanks in one” (4 total modules) precisely sloped, with tight center-line requirements. Tank covers, also provided by Tri-Mer, are 1" polypropylene.
Tri-Mer is a leader in advanced plating tank technology and specializes in tight design tolerances and custom shapes. Proprietary protocols developed by Tri-Mer allow polypro tanks to be manufactured in larger sizes than is otherwise practical, because thermal expansion is less of a factor. As a result, fewer tanks can often fulfill a given process requirement, at lower project cost.
Posco has annual sales of $45.75B.