T-Wash Solution Pre-treatment Etch Galvanised Steel & Zinc Treated Surfaces – 5L
Item Description
- A pre-treatment to etch galvanised steel and zinc treated surfaces.
- Promotes good adhesion for subsequent coatings.
- Will turn the surface black.
Apply to new galvanising within 7 days. Zinc surfaces which are contaminated should be cleaned down using an abrasive pad, water and cleaning agent followed by rinsing and allowing to dry. If contaminated with oil or grease surfaces should be wiped over with Universal Degreaser before carrying out the cleaning down procedure. Can be applied to weathered galvanised surfaces although reactivity of the treatment will diminish as the age of the galvanising increases and can result in an uneven colouration from light grey to dark grey.If no colour change takes place, these areas should be considered contaminated. Successive coats should not be applied to overcome the lack in change of colour of the zinc surface.
