Vetotop XT423 is a single-component, ready-to- use, sodium-silicate-based liquid hardener, dust proofer, and densifier. It’s ideal for concrete as it works by reaction with free lime present in the concrete to prevent surface dusting or hardening. The product has penetration properties that enable it to perform permanently across a, layer of the concrete surface rather than superficially.
Surfaces to be treated with Vetotop XT423 must be structurally sound and free from loose materials. Repair cracks or holes using a recommended Saveto repair material (which should be allowed to cure before proceeding with the application of Vetotop XT423). Treat oil and grease contaminated surfaces with a suitable chemical degreaser followed by washing with clean water and then allowing it to dry. Remove any laitance or existing coats before application, as these will prevent the Vetotop XT423 from penetrating the concrete surface.
Allow new concrete floors to cure for 14 days before treatment. Allow colored floors to cure for 28 days before treatment. Test a small area with Vetotop XT423 to assess the effect on the color. Vetotop XT423 must be applied only to dry surfaces to maximize penetration.
Vetotop XT423 can be applied at a rate of approximately 1 liter to every 6.5 - 10 m2 , depending on the surface condition and concrete porosity. Use a soft broom or brush.
Allow the solution to be absorbed into the floor for up to 2 hours; remove any solution not absorbed after this period. Failure to do so will result in forming a weak, glossy surface film following the drying.
Normally a two or three-coat application is recommended for complete treatment. However, very dense, well-trowelled surfaces such as granolithic toppings, power floated, or vacuumed dewatered concrete will generally require only a single coat. If a second application is necessary, re-apply the solution after 24 hours, ensuring that the floor is dry. All surplus solutions must be removed as stated previously. Apply the same procedure for a third application if required.