Description:

PPG Sigma Etch Amercoat 59TW, T Wash or also known as Mordant Solution, is a phosphoric acid based etch solution for treating new un-weathered galvanised surfaces prior to painting.

Suitable for use for pre-treatment of new galvanised steel where blasting or abrasion is not possible. Highways Item No. 155.

Features & Benefits:

• PPG Sigma Etch Amercoat 59TW, T Wash or also known as Mordant Solution
• May be over-coated with a wide range of protective coating systems
• May be used to give adhesion of high temperature coatings to new galvanised steel
• Changes colour on application from blue to black to indicate the effectiveness of primary pre-treatment
• Not recommended for immersed conditions