Sikafloor®-20 CureHard LI

Test report:China Standard JC/T 2158

1 component water-soluble agent based on lithium silicate

12 months from date of production

In original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5°C and +30°C. Protect from frost.

~1.115kg/L (at +23°C)

~17%

1-2 coats

According to JC/T2158 ,actual Abrasion Resistance Ratio

Note: According to JC/T2158 ,surface water absorption amount after 24h

Note: According to JC/T2158 ,Surface water absorption reduction rate after 24h

+2°C min, +40°C max

30% min, 100% max

+5°C min

Can be applied on green concrete, without any bleed water.

Where 2 coats are required to ensure maximum densification the second coat can be installed after the first one is dry. Allow previous coats to become tack free before applying additional coats.

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

The surface is touch-dry after 2 hours at +20 °C.
Maximum sealing and hardening effect achieved after curing 7 days at +20 °C.

Note: Times are approximate and will be affected by changing ambient and substrate conditions.

0.06-0.12kg/m²/coat(8-16 m²/kg/coat)
This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variations in level and wastage etc.

Fresh concrete
Surface must be free of bleed water and of sufficient strength to withstand finishing operations.
Hardened/old concrete
Surface must be sound, clean, free from frost, laitance, surface water, oils, grease, coatings, all loosely adhering particles and other surface contaminants.
If in doubt, please apply a test area first.

Fresh concrete: The concrete must be prepared by suitable power or manual floating/tamping techniques.
Hardened / old concrete: The substrate must be prepared by suitable cleaning method such as high pressure water cleaning or by ride-on cleaning machines.
Allowed to dry.
All dust, dirt, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and / or vacuum.

Fresh Concrete:
Apply in a continuous film using a high volume low pressure spray unit as soon as the surface is firm enough to walk on and in sufficient quantity to keep the surface damp for at least 30 minutes.
After 30 to 45 minutes, the material begins to gel and becomes slippery. Wet the material lightly with a water spray to reduce slipperiness and rework into the surface for 10 - 20 minutes with a soft bristle broom or floor-scrubbing machine. After about 20 minutes, the material will return to a gel. Rinse the floor and remove any excess material using a squeegee, wet vacuum or mop.
Hardened Concrete:
Apply in a continuous film using a high volume low pressure spray unit.
To ensure maximum penetration, scrub material into the surface with a soft bristle broom or floor-scrubbing machine (min. 30 minutes), until material begins to gel and become slippery. Wet the material lightly with a water spray and rework it into the surface for another 10 - 20 minutes. After this process, rinse the floor and remove any excess material using a squeegee, wet vacuum or mop.

On porous, rough-textured or broom-finished surfaces, a second coat may be required.
For large surfaces and greater placing rates, mechanical equipment such as ride-on cleaning machines can be also used to place, brush in and remove the excess material from the surface.
Thanks to proceeding chemical reaction the rate of water-tightness increases gradually, whereas maximum sealing and hardening effect occurs earliest after 7 days. Gloss of the surface gradually increases during 30 to 90 days depending upon cleaning frequency.

To maintain the appearance of the floor after application,Sikafloor®-20 CureHard LI must have all spillages removed immediately and must be regularly cleaned using rotary brushes, mechanical scrubbers, scrubber dryers, high pressure washers, wash and vacuum techniques, etc., using suitable detergents and waxes.
The frequency and intensity of the wet cleaning will directly influence the how soon and how deep the glossy anti-dust surface develops.