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Description
719 Polyetch is a top of the range, two-pack, anticorrosive self-etching primer. It is based on vinyl / butyral / phenolic resins and zinc tetroxy-chromate pigment. The catalyst contains phosphoric acid.
Uses:
Gives excellent adhesion to galvanised steel and nonferrous metals. Gives extra protection to ferrous metals when used as the first primer coat.
Spray apply 70-100 microns Wet Film Thickness to achieve 7-10 microns Dry Film Thickness.
Must be overcoated the same day - no sanding.
Allow 1 hour before overcoating with epoxies, 20 minutes for other coatings.
Must use intermediate primer when overcoating with single pack topcoats and 978
Aluminium - Degrease. Scour with Scotchbrite. Degrease again.
Galvanised steel - Clean and degrease. Use a proprietary acid wash if the surface has been chromate treated.
Drying:
Air dry in 15-20 minutes.
Recommend overcoating the same day. Allow at least 1 hour drying before overcoating with epoxies.
Do not stove.
Uses:
Gives excellent adhesion to galvanised steel and nonferrous metals. Gives extra protection to ferrous metals when used as the first primer coat.
Spray apply 70-100 microns Wet Film Thickness to achieve 7-10 microns Dry Film Thickness.
Must be overcoated the same day - no sanding.
Allow 1 hour before overcoating with epoxies, 20 minutes for other coatings.
Must use intermediate primer when overcoating with single pack topcoats and 978
Aluminium - Degrease. Scour with Scotchbrite. Degrease again.
Galvanised steel - Clean and degrease. Use a proprietary acid wash if the surface has been chromate treated.
Drying:
Air dry in 15-20 minutes.
Recommend overcoating the same day. Allow at least 1 hour drying before overcoating with epoxies.
Do not stove.
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