Epoxy resins are not a material that can be used for outdoor sun exposure, as epoxy itself is UV-unstable in direct sunlight, so we assume you have something similar to a mosaic that contains marble sands in the acrylic binder.

We suggest testing the product on a small surface first. Buy SPEKTRA acrylic impregnation and SPEKTRA acrylic paint for concrete in the desired shade and follow the procedure below:

1. wash the surfaces with water,

2. impregnate the washed and dried surfaces with SPEKTRA acrylic impregnation, thinned with water in a 1:1 ratio (minimum 6 hours of drying),

3. then, following an interval of at least 8 hours, paint the surfaces with SPEKTRA acrylic paint for concrete.

If you have decided to paint the concrete paving, epoxy coatings are definitely the most resistant ones, however, it can hardly be expected that no traces will be left on the surface from sand abrasion, claws or other sharp objects.

Epoxy coatings are definitely more solid than parquet lacquers and classic paints for concrete. They are traffic suitable surfaces, resistant to oils and mild acids.

If you wish to use SPEKTRA 2K epoxy paint for concrete, you can choose one of the four available shades.

Warning:

The surface for both coatings must be dry (a maximum of 3% of grease in the concrete), solid, and slightly sanded and dusted off beforehand. The application is then carried out according to the guidelines from the technical information.

Painting a concrete fence is a delicate job, as only few concrete fence structures have waterproofing that would prevent the influence of capillary moisture on the concrete structure. The lines below describe two different treatment systems.

Preparation of surface:

Sand the surface with sanding paper with grain size 80. Remove dust and poorly bonded particles. Check the moisture in the concrete which must not exceed a volume of 3%.

Painting concrete without waterproofing:

1x SPEKTRA silicone impregnation

2 – 3x SPEKTRA silicone facade paint

Painting concrete with thermal insulation:

1x SPEKTRA deep impregnation

2 – 3x SPEKTRA paint for concrete

As soft water is the major enemy of coatings, horizontal surfaces must be inclined to enable the out-flow of water and prevent its collection.

Coloured concrete must be restored very frequently. A partial renovation can be carried out each year, whereas a comprehensive one depends on the condition of the concrete, the humidity and other factors.

A good solution for your bathroom that would not involve a major intervention in your wall surfaces is hard to find, as the development of mould depends on the condensation of humidity in the wall surface. If you only planning to paint it, we recommend the following procedure:

Coat the mould with SPEKTRA biocide agent SANITOL. SANITOL destroys mould only as long as it is wet. Once dry, it no longer has an effect. The agent does not visually change mould, so the surface must be sanded once dry in order to remove the destroyed mould that is still visible on the surface.

When sanding, we recommend removing old lime paint thoroughly, as in most cases, it constitutes a separation layer between now coatings.

Once the surfaces are dusted off, impregnate them with SPEKTRA acrylic impregnation, thinned with water as indicated in the instructions on the packaging.

Paint the surfaces with one of SPEKTRA interior wall paints, to which you have added SPEKTRA protection against mould ZP.

If you want a long-term solution, you will first need to install thermal insulation on the object and a functional vent in the bathroom, and then follow the above described procedure.

Please also note the following: SPEKTRA biocide agent SANITOL is not to be added to the paint, but used independently.

More information on the products described is available on our websites and in the technical information.