Xpress Primer H20 Plus is a unique 1 component vapour barrier primer designed for use on concrete, screeds and mineral surfaces. Primer H20 Plus forms a vapour barrier to prevent blistering and delamination of membranes associated with residual dampness and surface moisture
Outstanding penetrating and adhesion properties once dried Primer H20 Plus will enhance the adhesion of overlaid coatings and finishes.
Fast drying properties, this unique vapour barrier forms a unique colour changing effect while drying. It is applied as milky white liquid and creates a light green tinge during the drying phase before becoming clear in its fully dry state when it is ready to be overcoated. Unlike traditional vapour barrier coatings, once cured the Primer H20 Plus will not change the surface properties of concrete and mineral surfaces, ensuring membranes and adhesives will bond as designed.
Primer H20 Plus is able to be applied on damp surfaces, and besides it performing as a vapour barrier on surfaces with residual moisture, it will prevent carbonation of concrete, providing outstanding anti-degradation properties. When used on screeds and renders, it reduces the phenomena of efflorescence forming in the mineral surface.
Features & Benefits
Forms a Vapour Barrier against residual moisture
Can be applied over damp and green concrete and mineral substrates
Fast drying, enabling application of finishes after only 1 hour
Unique colour changing formulation indicating when product is ready for overcoating
Reduces incidents of efflorescence when used over screed bases
Designed to use with Xpress Multi Pro Membrane on porous surfaces
Fully compatible with Gripset membranes, tile adhesives, water based vinyl and flooring adhesives, renders, mortars and acrylic paints and texture coatings.
Economical surface coverage of up to 1 litre/8m2.
Can be used as an exposed protective sealer over concrete against carbonation and general degradation
Suitable for internal and external applications.