To obtain the protective properties of the Vetotop AC440, it is important to adhere to the correct rates of application and over-coating times. The application should not begin if the temperature of the substrate is below 5°C. Mask any areas of glass and protect plants, grass, joint sealants, asphalt, and bitumen-painted areas during the application.
Prime Porous cementitious surfaces with Vetoprime AP443. or use diluted coat of Vetotop AC440 by 50% with clean water as a primer.
This is best accomplished by using portable spraying equipment. If in doubt about the condition of the substrate, contact Saveto’s Technical Center.
Allow the primer to dry for a minimum of 8 hours (at 20°C) (for longer at lower temperatures). Under no circumstances should the primer be overcoated with Vetotop AC440 until the surface is entirely dry.
Vetotop AC440 may be applied using suitable brushes or rollers. Get in touch with Saveto’s Technical Department for information relating to the spray application method before you begin the work.
Treat all primed substrates with two coats of Vetotop AC440. Stir the material thoroughly before use and the first coat can be diluted 10-15% with clean water if required depending on the substrate. Apply the first coat on all the areas using suitable brushes or rollers, keep until a uniform coating with a wet film thickness of fewer than 400 microns appears. Allow this coat to dry before continuing.
Apply the second coat of Vetotop AC440 exactly as detailed above.
Under poor drying conditions or at low temperatures, it may be more practical to apply three thinner coats (270 microns wet film thickness each) of Vetotop AC440 to achieve better ‘through drying. This method will achieve the correct recommended dry film thickness.
