



SikaTop®-107 Seal HK
SikaTop®-107 Seal HK is a two part polymer modified cementitious waterproof slurry composed of a liquid polymer and a cement based mix incorporating special admixtures. It is applied to concrete and mortar to prevent water infiltration.
- Easy to apply by brush or in thin trowel applications
- Prebagged components with consistance quality
- Hand or spray applied
- Very good adhesion
- Protects against water penetration
- Non toxic
- Non-corrosive to steel or iron
- Overpaintable
Usage
- Interior waterproofing and damp-proofing of concrete, cementitious rendering, brickwork and blockwork
- Pore / blowhole filling
- Sealing fine “hairline” cracks in concrete structures (not subject to movement)
- Protection against water ingress
- Concrete water tanks / reservoirs
- Terraces and balconies
- Retaining walls
- Bathroom / toilets
- Tile grouting in water tank
Advantages
- Easy to apply by brush or in thin trowel applications
- Prebagged components with consistance quality
- Hand or spray applied
- Very good adhesion
- Protects against water penetration
- Non toxic
- Non-corrosive to steel or iron
- Overpaintable
Packaging
25 kg set (20 kg bag and 5 kg pail)
Colour
Part A : white liquid
Part B : grey or white powder
Mixed product : cement grey or off-white
Product Details
APPROVALS / STANDARDS
Sikatop 107 Seal HK is certified by CIC (Construction Industry Council) achieved compliance with the Assessment Standard and is rated Platinum grade environmental friendly product. (Application no.: CICGPC-L-21179 (P&C))
Chemical Base
Part A : liquid polymer and additive
Part B : portland cement, selected aggregate and admixtures
Shelf Life
9 months from date of production
Storage Conditions
If stored properly in undamaged and unopened original sealed packaging in cool dry conditions. Protect from direct sunlight and frost.
Density
Approx. 1.9–2 kg/L (Freshly mixed mortar)
Compressive Strength
~ 32 MPa | (ASTM C109-05) |
Tensile Strength in Flexure
~ 10 MPa | (ASTM C348-95) |
Tensile Strength
~ 2.5 MPa | (ASTM D412-16) |
Tensile Adhesion Strength
~ 1 MPa | (ASTM D4541-09) |
Application
Mixing Ratio
Used as slurry : A : B = 1 : 4 (by weight)
Used as mortar : A : B = 1 : 4.5 (by weight)
Used as water tank tile grout : A : B = 1 : 5.2 (by weight)
Ambient Air Temperature
+8 °C min. / +35 °C max.
Substrate Temperature
+8 °C min. / +35 °C max.
Pot Life
~ 30 minutes at +30 oC
(Pot life will be shortened at higher temperatures.)
Waiting Time / Overcoating
Waiting time between coats:
+10 °C | ~ 12 hours |
+20 °C | ~ 6 hours |
+30 °C | ~ 3 hours |
If waiting time period exceeds 24 hours, lightly clean up the surface.
For overcoating with cementitious materials, please ensure SikaTop®-107 Seal HK is hardened and strong enough to hold the topping materials.
For use in water-retaining structures or for applying renders over it or for overcoating with non-cementitious materials, please consult our Technical Services Department.
Consumption
Dependent on the application area, substrate roughness, surface profile and thickness, consumption for one coat is :
- Waterproofing for bathrooms, terraces and balconies, etc.
~ 1.0 kg/m2/coat
- Waterproofing coating for crucial areas
~ 2.0 kg/m2/coat
Note:
- SikaTop®-107 Seal HK must be applied in minimum 2 coats.
- 3 coats may be required in areas of extremely high infiltration.
- Ronacrete Unicell® WF with primer as protective render is recommended.
EQUIPMENT
SikaTop®-107 Seal HK 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
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. Mixing time ~ 3 minutes.
MIXING TOOLS
SikaTop®-107 Seal HK 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.
APPLICATION
The surface must be pre-wetted to a saturated surface dry condition with no standing water at time of application.
As a slurry:
Apply the mixed SikaTop®-107 Seal HK by hand or spray using a stiff brush or roller or broom in the same direction. Apply the second coat of SikaTop®-107 Seal HK in crosswise direction to the first application as soon as first coat has hardened.
As a mortar:
When SikaTop®-107 Seal HK is applied by trowel (e.g. for a smooth surface finish), the product must be mixed with a 10 % reduction of part A (A : B = 1 : 4.5). Apply the second coat of SikaTop®-107 Seal HK as soon as the first coat has hardened. For pore / blowhole filling, tightly trowel into the pores / blowholes of the surface.
For floor applications, it is recommended to apply the second coat within 24 hours to avoid damage to the first coat. If the second coat is applied 12 hours or later, the first coat shall be slightly prewetted, preferably by using a fine spray. A better finish can be achieved by rubbing down with a soft, dry sponge after applying the second coat.
Sika® SealTape F is a recommended product to be used in conjunction with SikaTop®-107 Seal HK in order to achieve advanced water tightness in wet rooms and around wet area.
For more details, please contact our Technical Services Department.
CURING TREATMENT
For cement based products, proper curing is important. Protect newly applied SikaTop®-107 Seal HK against direct sunlight, wind, rain and frost to ensure full cement hydration and minimise cracking.
CLEANING OF TOOLS
Clean all tools and application equipment with clean water immediately after use. Hardened / cured material can only be removed mechanically.