Sikafloor-29 PurCem, 22Kg

3 – 9 mm (0.118 – 0.354 in)

Beware of condensation. To reduce the risk of condensation or efflorescence on the finished surface, the temperature of the substrate and the freshly applied material must be at least +3 °C (+37 °F) higher than the dew point temperature. Low temperatures and high relative humidity increase the probability of surface efflorescence.

The product can be applied to substrates with a high moisture content without standing water. Check for rising damp. The support must be visibly dry and have a pull-out strength of at least 1.5 N/mm² (218 psi).

Before re-covering the Product, a waiting time will be ensured as follows:

Note: Times are approximate and are affected by changes in ambient conditions, especially temperature and relative humidity.

Note: If instead of the Sikafloor® PurCem®-based leveling and pore-closing layer you use another Sika® priming product, please observe the recoating times indicated in the Technical Data Sheet of the respective Product. Ensure that the primer or leveling and pore-closing layer is fully cured before applying the next layer of Sikafloor® PurCem®.

~2.0 kg/m²/mm

MIXING EQUIPMENT

• Single paddle electric mixer (300 – 400 rpm)
• Electric mixer with two paddles (>700 W, 300 – 400 rpm)
• Forced action mixer / rotary bowl / two paddles or continuous action mortar mixer (300 – 400 rpm)

APPLICATION EQUIPMENT

• Straight trowel with rounded corners
• Tools for shaping boats

TREATMENT OF JOINTS AND CRACKS

IMPORTANT

Incorrect treatment of cracks

Incorrect assessment and treatment of cracks can lead to a reduced life of the finish and re-occurrence of cracks.

Existing construction joints and static surface cracks require treatment before the system is applied. Use resin-based products from the Sikafloor® and Sikadur® ranges to level and fill them.

The system can be applied to freshly poured or wet concrete without standing water. Wait at least 3 days after pouring the concrete to allow the initial shrinkage to wear out, thus preventing shrinkage cracking on the wearing surface.

The cement support layer (concrete / screed) must be solid and have sufficient compressive strength (minimum 25 N/mm 2 (3626 psi) ) with a pull-out strength of at least 1.5 N/mm 2 (218 psi) .

The substrate must be clean and free of contamination, such as: impurities, residues, oil, grease, coatings or previous surface treatments, friable materials, etc.

To prevent detachment of the material from the support in the end areas, place anchor grooves along exposed edges (perimeter, joints, connections, plinths, posts, gutters/siphons, etc.) as indicated and detailed in Method of Application: Sikafloor® PurCem®. The width and depth of the grooves must be equal to twice the thickness of the applied system.

IMPORTANT

Only mix complete sets

PROCEDURE FOR MIXING 3 COMPONENTS

1. Mix Component A (resin) until the pigment is dispersed and a uniform color is obtained.
2. Add Component B (the hardener) to Component A.
3. Continuously mix Components A + B for 30 seconds until a mixture of uniform color is obtained.
4. After 30 seconds gradually add Component C while continuing to mix.
5. After adding all the components continue mixing for 2 minutes, until a uniform mixture is obtained. Note: At temperatures below +15 °C (+59 °F) the mixing time increases by 30-60 seconds.
6. To ensure thorough mixing, pour the material into another container and mix again until a homogeneous and uniform mixture is obtained.
7. To ensure thorough mixing, scrape the sides and bottom of the container at least once during the final mixing step with a straight-edged trowel.

PROCEDURE FOR MIXING 4 COMPONENTS

1. Mix Component A (resin) for 30 seconds.
2. Add Component D (pigment) to Component A.
3. Mix Components A + D for 30 seconds until you get an even color.
4. Add Component B and continue mixing for 30 seconds.
5. Gradually add Component C while continuing to mix.
6. After adding all the components continue to mix for 2 minutes, until a uniform mixture is obtained. Note: At temperatures below +15 °C (+59 °F) the mixing time increases by 30-60 seconds.
7. To ensure thorough mixing, pour the material into another container and mix again until a homogeneous and uniform mixture is obtained.
8. To ensure thorough mixing, scrape the sides and bottom of the container at least once during the final mixing step with a straight-edged trowel.

IMPORTANT

Protection of the material after application

After application, protect the System from moisture, condensation and direct contact with water for at least 24 hours.

IMPORTANT

Protection of the material from condensation and accidental leaks

During application, protect the Product from condensation or any leaks from ceiling fixtures.

IMPORTANT

Ventilation of closed spaces

Always ensure good ventilation when applying the Product in enclosed spaces.

IMPORTANT

Applications on screeds based on modified polymer cement

Do not apply to polymer modified cementitious screed substrates. When sealed with an impermeable resin, in the presence of moisture they can expand.

IMPORTANT

Waiting time for food products

In food processing areas, always allow a waiting time of at least 48 hours after applying the product before putting the floor into use.

SCAFFE MODELING MORTAR AND DETAILS

1. Apply the mixed Product, "wet in wet", on the prepared and primed support.
2. Shape the hull to the required dimensions and connection radius using specific hull and detail tools. Note: To ensure a seamless finish, keep the "wet edge" during application.

Clean all tools and application equipment with Sika® Thinner C immediately after use. The already hardened material can only be removed mechanically.