Chemical-Resistant Tank Lining Offers Versatility, Cost Control


Plasite 4550 HT, the newest addition to the Plasite family of tank linings, is a robust, reinforced, plural component applied epoxy novolac designed for efficient, trouble-free application, according to manufacturer Carboline. The high-performance tank lining was created with the applicator in mind, formulated to ensure quality installation at low pressures. Its ease of application results in a smooth, uniform film from 12 mils to 40 mils in a single coat. The company notes that, because the finish is less susceptible to attack, Plasite 4550 HT provides an extended maximum service life compared to other linings.


As many painting contractors know, there are often trade-offs with coating properties. Typically, if a lining has a long recoat window, it cures slowly, extending the return-to-service time. Plasite 4550 HT has a rapid return to service and allows for a long recoat window — an unusual combination. The lack of amine blush simplifies holiday testing, spot repairs and unnecessary delays. Blush resistance is a distinct feature, particularly when applying in cold conditions known to cause amine blush. Carboline reports that the 4550 HT lining continues to cure as low as 20 degrees F (-7 C), extending the painting season into the cold winter months.

With strong chemical resistance, the lining is appropriate for a variety of services, eliminating the need to specify multiple coatings for the same project or facility. This simplifies specifications and develops contractor familiarity.

Plasite 4550 HT was applied to the floor and walls of a bolted fuel storage tank.

the value of durability

The cost of relining crude oil tanks has outpaced inflation dramatically over the years. Since relining costs can only be expected to grow in the future, lining durability is critical now more than ever.

Typically applied as a one-coat lining, Plasite 4550 HT is also fully compatible with the primer Phenoline Tank Shield FP.  This two-coat system provides even more durability and is suitable for most service conditions. It is ideal for heavily pitted tanks.

These application properties result in higher-quality lining installations. Smooth finish, wide acceptable thickness range, curing in cold conditions and a long recoat/touch-up period all contribute to scheduling flexibility, quicker return to service, and user-friendly, problem-free applications.

All brands are registered trademarks. Claims or positions expressed by sponsoring authors do not necessarily reflect the views of TPC, PaintSquare or its editors.




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