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Sigma Etch (T Wash) 5ltrSKU: 069SETW5
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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