Sherwin-Williams Mordant Wash L703 (formerly known as Leighs L703/Transgard TG155) is a blue mordant solution for application onto galvanized surfaces as a chemical pre-treatment to improve the adhesion of subsequent paint systems.
Where to use
For application onto galvanized surfaces as a chemical
pre-treatment to improve the adhesion of subsequent paint
systems. When applied, this solution turns bright zinc
surfaces black and this colour change can be used as an
indicator that the chemical reaction has taken place and the
surface is suitable for overcoating.
27.6m² per litre
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Don't forget your accessories...
Make sure you have everything you need with our essentials accessory pack which includes all you need to apply 2 coats of Ecoguard HB (2 coats are usually recommended)