Sikafloor® ProSeal W

• Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4

• Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU)

Water-dispersed acrylic emulsion

12 months from date of production

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

16 %

Beware of condensation. The substrate and uncured applied product must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the surface of the applied product. Low temperatures and high humidity conditions increase the probability of blooming.

Allow previous coats to become tack-free before applying additional coats.

Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.

Full cure times are approximate and will be affected by changing substrate and ambient conditions.

0.1–0.2 L/m² per coat

Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

5–10 m²/L per coat

SUBSTRATE PREPARATION

• High-pressure water or abrasive blast cleaning equipment

• Vacuum cleaner

MIXING

• Electric stirrer

APPLICATION

• Low-pressure spray unit

• Brush

• Roller

FRESH CONCRETE

The surface must be free of bleed water and of sufficient strength to withstand finishing operations.

The concrete must be prepared by suitable power or manual floating and tamping techniques.

HARDENED OR OLD CONCRETE

Surfaces must be sound, open textured, clean, free from frost, laitance, surface water, oil, grease, coatings, all loosely adhering particles and other surface contaminants.

1. Prepare the substrate using suitable mechanical preparation techniques such as high-pressure water or abrasive blast cleaning equipment.
2. Completely remove all dust, dirt, loose and friable material from all surfaces with a brush or vacuum cleaner.
3. If in doubt, apply a test area first.

1. Stir thoroughly for 2 minutes with an electric stirrer at low speed (approx. 300 rpm).

IMPORTANT

Incompatibility with other substances

Contact with certain substances impairs the Product's performance or that of the other substance.

1. Do not use sprayers which have been used to spray silicones or release agents.
2. Clean spraying equipment thoroughly before use and remove residues of previous membranes.
3. Do not mix differing formulations of Sika® or other curing membranes.
4. Remove the Product before applying a coating system.

Risk of yellowing on certain substrates

Note: Some yellowing may be perceptible if the Product is applied to white and non-absorbent substrates in exteriors.

Hot weather working above +25 °C

Note: In hot weather conditions gelling may occur before material has penetrated sufficiently.

1. Observe the recommended storage and application temperatures.

Cold weather working below +10 °C

Note: At low temperatures the product may thicken and be difficult to spray.

1. Observe the recommended storage and application temperatures.

Effects of exposure over time

Note: The Product increases abrasion resistance compared to uncoated C25 concrete, but will gradually de-grade and be removed by exposure to environmental conditions and traffic.

Preconditions

If applying to fresh concrete, apply immediately after completing finishing techniques.

If applying to concrete topped with a dry-shake hardener, apply immediately after completing power-floating.

1. Apply the Product in a continuous, even film using a low-pressure spray unit, brush or roller. Note If applying by spray equipment, check its suitability by applying to a trial area.
2. Wait for the first coat to dry tack-free.
3. To achieve the highest visual aesthetics and performance, apply a second coat.

Clean all tools and application equipment with water immediately after use. Hardened material can only be removed mechanically.