Mainstay DS-4 is designed for use where corrosion is anticipated or known to be active and aggressive. 100 mils or more is recommended for the most extremely corrosive locations in a collection system, such as in manholes near a force main, in lift stations, or in pulp and paper processing plants. Mainstay DS-4 is also ideal for secondary containment applications where aggressive chemicals are often encountered.

Mainstay DS-4 product data PDF Download our product detail sheet (37 KB, opens in separate window).

Product Overview

Coating Type

100% solids, two-component epoxy coal tar coating


4.5 gallon kits standard; special packaging available


Approximately 16 square feet per gallon at .1" (100 mils); 72 square feet per kit at .1"; allowances should be made for waste

Mix Ratio

1 part A to 2 parts B by volume



Working Time

Approximately 45 minutes at 90º Fahrenheit

Application Equipment

Contact us for information regarding the proper equipment to apply this product.