SikaTop® Seal-107 ZA
Liquid applied, cementitious waterproofing slurry
SikaTop® Seal-107 ZA is a two part polymer modified cementitious waterproof mortar slurry comprising of a liquid polymer and a cement based mix incorporating special admixtures. SikaTop® Seal-107 ZA complies with the requirements of EN 1504-2 as a protective coating.
- Easy to apply by brush or in thin trowel applications
- No water required
- Prebatched components
- Hand or spray applied
- Easy and fast mixing
- Very good adhesion
- Protects concrete against carbonation
- Protects against water penetration
- Non-corrosive to steel or iron
- Overpaintable
- Approved for potable water contact
Usage
SikaTop® Seal-107 ZA is used for:- Interior and exterior waterproofing and damp-proofing of concrete, cementitious rendering, brickwork and blockwork
- Protection of concrete structures against the effects of de-icing salts and freeze-thaw attack
- Rigid waterproofing of basement walls in new construction and refurbishment
- Pore/blowhole filling
- Waterproofing basement and cellars (not subject to hydrostatic water pressure)
- Sealing fine “hairline” cracks in concrete structures (not subject to movement)
- Levelling mortar for concrete repair works
- Suitable for protection against ingress (Principle 1, method 1.3 of EN 1504-9),
- Suitable for moisture control (Principle 2, method 2.2 of EN 1504-9)
Advantages
- Easy to apply by brush or in thin trowel applications
- No water required
- Prebatched components
- Hand or spray applied
- Easy and fast mixing
- Very good adhesion
- Protects concrete against carbonation
- Protects against water penetration
- Non-corrosive to steel or iron
- Overpaintable
- Approved for potable water contact
Packaging
| Component A | 5 kg |
| Component B | 20kg |
Colour
| Component A | White liquid |
| Component B | Grey powder |
Product Details
Chemical Base
| Component A | Liquid Polymer and Additives |
| Component B | Portland cement selected aggregates and admixtures |
Shelf Life
12 Months from date of production
Storage Conditions
Product must be stored in original, unopened and undamaged sealed packaging in dry condition at temperatures between +5ºC and +30ºC. Always refer to packaging
Maximum Grain Size
Dmax:
Compressive Strength
| 3 Days | ~7 N/mm2 |
| 28 Days | ~20 N/mm2 |
Coefficient of Thermal Expansion
13 x 10-6 per °C
Diffusion Resistance to Water Vapour
µH2O ~ 500
Equivalent Air Layer Thickness for Water Vapour
2mm thickness of SikaTop® Seal-107 ZA attains 0.8m, better than 100mm of concrete
Permeability to Carbon Dioxide
µCO2 ~ 35000
Application
Mixing Ratio
| Used as a slurry | A:B = 1:4 (parts by weight) |
| Used as a mortar | A:B = 1:4.5 (parts by weight) |
Fresh mortar density
Fresh mortar density: ~2.00kg/l
Layer Thickness
Min. 0.75mm min – max. 1.5mm/coat
Ambient Air Temperature
+8°C min. / +35°C max.
Substrate Temperature
+8°C min. / +35°C max.
Pot Life
~ 30 minutes at +20°C
Waiting Time / Overcoating
Waiting time between coats:
| +10ºC | ~12 hours |
| +20ºC | ~6 hours |
| +30ºC | ~3 hours |
If waiting time period exceeds 24 hours, lightly blast clean the surface.
SikaTop® Seal-107 ZA can be overpainted using solvent based primers or coatings. SikaTop® Seal-107 ZA must cure for a minimum of 7 days before overcoating.
Consumption
Dependent on the substrate roughness, surface profile and thickness of the layer applied.
As a guide, ~ 2.0 kg/m2/mm (excluding allowances for loss wastage, surface profile and porosity, etc.).
Yield
1 unit of 25kg yields ~ 12.5 litres of mortar.
MIXING
Shake part A before using it. Pour approximately half of part A into the mixing container and add part B slowly while mixing. Add the remainder of part A and continue mixing until a uniform lump free consistency is achieved. The surface must be pre-wetted to a saturated surface dry condition before application. SikaTop® Seal-107 ZA must be mechanically mixed using a forced action mixer or in a clean drum using a drill and paddle (max. 500 rpm). A normal concrete free fall mixer is NOT suitable.
Mixing should take place for at least 3 minutes.
APPLICATION
As a slurry:
Apply the mixed SikaTop® Seal-107 ZA either mechanically, by spray or by hand using a stiff brush. Applied in the same direction.
Apply the 2nd coat of SikaTop® Seal-107 ZA, applied by brush in crosswise direction to the first application as soon as first coat has hardened.
As a mortar:
When SikaTop® Seal-107 ZA is applied by trowel (e.g. for a smooth surface finish), the product must be mixed with a 10% reduction of part A (~ 1A : 4.5B).
Apply the 2nd coat of SikaTop® Seal-107 ZA as soon as the first coat has hardened.
For pore/blowhole filling, tightly trowel into the pores/blowholes of the surface.
CURING TREATMENT
It is essential to cure SikaTop® Seal-107 ZA immediately after application for a minimum of 3 to 5 days to ensure full cement hydration and to minimise cracking. Use polythene sheeting or similar approved methods.
CLEANING OF TOOLS
Clean all tools and application equipment with clean water immediately after use. Hardened / cured material can only be removed mechanically.