YAPIFINE HYDRA® CRYSTAL

Cement based single component crystallized waterproofing material with a capillary effect which can be used on both negative and positive sides that provides waterproofing by permeating into the concrete.

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Technical profile

Material data,
at a glance.

Key properties and declared technical characteristics for product selection and initial evaluation.

Appearance: Grey powder Pressurised Water Strength 7 bars (Negative & positive side)
Application Temperature: Between +5°C and +35°C Capillary Water Absorption ≤ 0,1 kg/(m².h0,5)
Pot Life: 20 minutes Water Vapour Permeability Class I; Sd < 5
Time Before Use: 5 days Reaction to Fire A1
Concrete Adhesion Resistance: ≥ 0,8 N/mm²

Performance

Product advantages

Provides waterproofing by being applied to concrete surfaces on both positive and negative sides and protects the concrete from the harmful effects of water.
The mixture that is prepared by mixing the product with water only, reacts with the free lime particles on the concrete surface. The crystals formed diffuse into the concrete and by filling the capillary gaps provides waterproofing.
When applied on fresh concrete surfaces slows down the hydration process and reduces the cracks formed by shrinkage.
Is permeable to water vapor.
Is resistant to the freeze-thaw cycle.
Protects both the concrete and the reinforcement from the corrosive effects of water.

Application range

Areas of use

On both horizontal and vertical applications
To provide waterproofing on the exposed concrete surfaces of all buildings
Elevator pits
Foundation and basement walls
To provide waterproofing on both the negative and the positive sides of both old and new structurally intact concrete surfaces.
Waterproofing for both underground and aboveground structures
Water tanks and swimming pools
Irrigation canals
Elevator shafts, tunnels and metros

Use guidance

From selection
to application.

Application

WET MORTAR: Prepared mortar, is applied on the surface which has had its underlayer preparation finished and is already saturated with water with a brush, a trowel or with a spray machine in a minimum of 2 layers. It should be made sure of that the layers are homogeneous, smooth and even. The application should be done in the same direction on any specific layer. When the first layer finishes drying the second layer can be applied. The layers should be applied perpendicular to each other. 4-8 hours should pass between the application of the layers. After the application the surface should be protected from rain and frost for 24-48 hours. As it is in the normal curing process of the concrete HYDRA CRYSTAL should also be prevented from immediately drying, in order not to let it dry off, the application area should be kept wet with water 3 times a day for 5 days. DRY COATING (negative side): Once the freshly poured concrete somewhat sets itself in place, it is simply coated with YAPIFINE HYDRA CRYSTAL. DRY COATING (positive side): Right before the pouring of the concrete the surface is simply coated with YAPIFINE HYDRA CRYSTAL and the concrete is poured on top of it.

Specification & supply

Standards, formats
and handling.

Packaging

25 kg kraft bag

Storage

The shelf life of the product is 12 months when stored in its original packaging in dry (maximum relative humidity 60%), cool (ambient temperature between +10°C and +25°C) and moisture-free environment.