Floor coating & garage floor – FAQ

A floor coating is a seamless synthetic resin covering that is applied to concrete, screed, or appropriately prepared tiles. Epoxy resin (EP) and polyurethane (PU) coatings are used particularly frequently.

Floor coatings are suitable for, among other things, garages, workshops, basements, warehouses, production areas, and other floors subject to heavy wear.

The most important types are epoxy resin, polyurethane, and acrylic coatings.

• Epoxy resin (EP): very durable and resistant to chemicals – ideal for garages, workshops, and industry.
• Polyurethane (PU): more elastic; depending on the system, also UV-resistant and suitable for outdoor surfaces.
• Acrylic: thin, primarily decorative topcoats.

Which system is suitable depends on the substrate, load, UV exposure, and desired surface finish.

An epoxy self-leveling coating is suitable for garages – for example, Sikafloor-150 Plus as a primer and Sikafloor-2600 as a coating. Sikafloor-2600 is designed for normal to medium mechanical loads and results in a seamless, glossy, and liquid-tight surface.

Proven system: prepared substrate → Sikafloor-150 Plus → Sikafloor-2600, optionally with color chips and anti-slip sealer.

Both are available together as a complete floor coating set with a consumption calculator.

A typical structure consists of substrate preparation, priming, and coating – optionally supplemented by color chips, sealing, and anti-slip additives.

1. Substrate preparation (grinding or shot blasting, vacuuming)
2. Priming, e.g., Sikafloor-150 Plus
3. Self-leveling coating, e.g., Sikafloor-2600
4. Optional: Broadcast color chips
5. Optional: Sealing with Sikafloor-256 W, if necessary with Sikafloor anti-slip agent

The exact structure depends on the substrate and the subsequent load.

The substrate must be sound, clean, and dry, and must be mechanically prepared – by diamond grinding or shot blasting, followed by thorough vacuuming.

It must be free from dust, oil, grease, and any substances that could impair adhesion; the cement laitance must be completely removed. Cracks, unevenness, and defects must be professionally treated prior to coating. For Sikafloor-150 Plus, Sika requires a compressive strength of at least 25 N/mm² and a pull-off strength of at least 1.5 N/mm².

For the Sikafloor-150 Plus primer, cementitious substrates must have a maximum residual moisture content of 4 CM-%, and anhydrite screeds a maximum of 0.3 CM-%.

If the residual moisture content is higher, a temporary moisture barrier is required – alternatively, the Sikafloor-1590 primer is suitable.

Yes, as a rule, always: The primer ensures the bond between the substrate and the coating.

The floor coating complete set includes Sikafloor-150 Plus for this purpose – a solvent-free 2-component epoxy resin that serves as a bonding agent for all epoxy or PU-based Sikafloor coatings. Which primer is required and how much is needed depends on the substrate and the coating system.

For primer and self-leveling coating, allow for approx. 0.30–0.50 kg/m² of Sikafloor-150 Plus per application and approx. 1.2–1.5 kg/m² of Sikafloor-2600.

• Primer Sikafloor-150 Plus: 1–2 applications of 0.30–0.50 kg/m² each – a 25 kg container covers approximately 60 m² at 0.40 kg/m².
• Self-leveling coating Sikafloor-2600: approx. 1.2–1.5 kg/m².

The exact quantities for your surface area can be calculated using the consumption calculator in the Floor Coating Complete Set.

The costs depend on the area, the condition of the substrate, the coating system, and the desired slip resistance – our consumption calculator in the floor coating complete set will show your exact material costs.

In addition to the primer and self-levelling coating, you should also plan for substrate preparation as well as, if necessary, quartz sand, anti-slip agents, and tools.

Sikafloor-150 Plus primer is applied at +10 °C to +30 °C – this applies to the material, air, and substrate – at a maximum relative humidity of 80%.

The warmer it is, the shorter the pot life: approx. 60 minutes at +10 °C, 30 minutes at +20 °C, and 15 minutes at +30 °C. For the coating, please refer to the information in the product data sheet.

At +20 °C, the primer Sikafloor-150 Plus can be recoated after 9 hours and up to a maximum of 2 days later.

At +10 °C, the waiting time increases to 17 hours up to a maximum of 4 days. If this time window is exceeded, the adhesion of the subsequent layer can no longer be reliably guaranteed.

Yes, with careful surface preparation and a coordinated system such as our floor coating complete set, you can coat a garage floor yourself.

Surface preparation, correct mixing ratios and application quantities, as well as the processing and recoating times of the products are particularly important. If you are uncertain, we are happy to advise you free of charge: To personal consultation.

The complete floor coating set contains the coordinated quantity of Sikafloor-150 Plus primer and Sikafloor-2600 self-leveling coating in your desired RAL color.

You choose the color, enter your area in m² into the consumption calculator, and automatically receive the appropriate amount of material. The system can optionally be finished with color chips and anti-slip properties.

There are 20 RAL colors available to choose from directly in the floor coating complete set.

RAL shades are standardized colors that allow a hue to be clearly defined and reproduced. Special RAL colors are ordered on a per-order basis, which may extend the delivery time. The colors displayed on the screen serve as a guide.

Yes, color chips are scattered into the still-wet coating to create an individual, textured look.

You will need spiked shoes to walk on the fresh coating. Afterward, the surface can be sealed with Sikafloor-256 W.

A smooth floor coating is not automatically slip-resistant – a slip-resistant surface is created by additives in the sealer or by broadcasting quartz sand.

In the Sikafloor system, the Sikafloor anti-slip agent is added to the silk-matt sealer Sikafloor-256 W – dosed at 2–4% of the sealer quantity. Which version is appropriate depends on the area of application.

A sealer is a thin protective layer, whereas a coating is applied significantly thicker and can withstand greater mechanical loads.

For garages, workshops, and high-traffic areas, a coating consisting of a primer and a self-leveling compound is therefore usually recommended – optionally with an additional sealer.

Yes, concrete is the typical substrate for floor coatings. It must be sufficiently load-bearing and free from contaminants that could reduce adhesion.

Mechanical preparation by grinding or shot blasting creates the right surface for the primer.

Basically yes, provided the tiles are firmly bonded to the substrate and prepared accordingly.

The surface must be cleaned and mechanically prepared. We would be happy to determine which system structure is suitable for your tiles during a personal consultation.

A professionally applied floor coating will last for many years if used appropriately.

The actual service life depends on surface preparation, coating thickness, material, workmanship, mechanical stress, cleaning, and environmental factors.

The biggest advantage: floor coatings are seamless – dirt and water cannot collect in joints, making cleaning significantly easier.

• highly resilient and resistant to abrasion, chemicals, and mechanical stress
• customizable in many colors, textures, and gloss levels
• can be made slip-resistant
• easy to maintain and cost-efficient in the long term

The most common areas of application are garages, basements, workshops, storage and technical rooms, industrial areas and parking garages.

According to Sika, Sikafloor-2600 is also suitable for production facilities, loading ramps, as well as areas in the beverage and food industry.