Sikafloor curehard-24 - Transparent surface hardener - Sika

Sikafloor curehard-24 - Transparent surface hardener - Sika

Sikafloor CureHard-24 is a single-component , transparent , sodium silicate- based liquid, with a high solids content, used for curing, surface hardening and sealing fresh or hardened concrete.

Features

• Ready to use.
• Easy to apply.
• Improved resistance to abrasion and chemicals compared to untreated concrete.
• Limits dust emissions from concrete floors.
• Reduces premature drying of fresh concrete during hardening.
• Makes cleaning easier.
• Does not yellow.
• Good penetration.
• Without solvents.
• Colorless and odorless.

Application areas

• On horizontal surfaces of new or old concrete, where a hard surface with light to moderate abrasion resistance is required, for example in warehouses, industrial buildings, shops, shopping centers, car parks, service stations, hangars, etc.
• On concrete slabs for situations requiring no efficiency or curing standards.
• Suitable for interior or exterior applications.
• Dust reducer for precast concrete elements.
• Suitable for protection against penetration (Principle 1, method 1.2 of EN 1505-9).
• Suitable for increasing physical resistance (Principle 5, method 5.2 of EN 1504-9)

Application

Fresh concrete

1. Apply in a continuous film using a high volume, low pressure spray gun as soon as the surface is firm enough to walk on.
2. Apply in sufficient quantity to keep the surface wet for at least 30 minutes.
3. After about 30 to 45 minutes, the material will begin to gel and become slippery.
4. Lightly spray the material with water to reduce slipperiness, and work the product into the surface by rubbing it with a soft brush or single-brush machine for 10 to 20 minutes.
5. After about 20 minutes the material will gel again.
6. Rinse the floor and remove any excess product using a squeegee, vacuum cleaner or mop.

Hardened concrete

1. Apply in a continuous film using a high volume, low pressure spray gun.
2. To ensure maximum penetration, work the product into the surface using a soft brush or single-brush machine for a minimum of 30 minutes, until the material begins to gel and becomes slippery.
3. Lightly dampen the material by spraying with water and work the product into the surface again for an additional 10 to 20 minutes.
4. Then rinse the floor and remove any excess product using a squeegee, vacuum cleaner or mop.
5. A second coat may be necessary on porous concretes with a rough structure or which are finished by brushing.
6. For large surfaces and higher application rates, mechanical equipment such as ride-on scrubber dryers can also be used to apply, penetrate or remove excess product.
7. Thanks to the gradual chemical reaction, the waterproof rate gradually increases while the maximum sealing and surface hardening effect is achieved after 7 days at the earliest.
8. The surface shine gradually increases over 30 to 90 days, depending on the frequency of cleaning.

Consumption

0.15 – 0.25 l/m²/coat (4 - 7 m²/l/coat).
These values are theoretical and do not include the additional material possibly required to compensate for the porosity of the surface, and the roughness of the support, variations in levels and losses, etc.

Yield: 4–7 m2/l/layer

Conditioning

• 25 L bucket, transparent liquid.