SikaTop® Seal-107

As with all cement-based materials avoid contact with aluminum to prevent adverse chemical reaction and possible product failure. Insulate potential areas of contact by coating aluminum bars, rails, posts, etc. with an appropriate epoxy such as Sikadur®-32 Hi-Mod.

Maximum application thickness per coat = 2 mm (80 mil). Do not apply less than 1 L/m2 = 1 mm (40 mil).

Minimum ambient and substrate temperatures are +7 °C (44 °F) and rising at the time of application.

As with all cement-based products, curing is important. Protect newly applied product against direct sunlight, wind, rain, and frost.
And if rain is anticipated within 1-2 days after the application, the surface should be protected to prevent streaking.
 

Fill in any spalled areas in the existing substrate with the appropriate Sika® repair mortar as required. Apply an appropriately sized closed cell backer rod along transition (wall slab) to prevent three-sided adhesion. Apply a continuous cant bead of Sikaflex®-1a or Sikaflex®-2c EZ Mix to a depth of 6 mm (1/4 in) minimum with a 10 mm (3/8 in) contact surface on each side of the joint. Allow sealant to cure sufficiently. Substrate must be SSD with no standing water at time of application. Apply a 1.5 mm (60 mil) thick layer of SikaTop® Seal-107CA over the entire balcony. While the material is still wet, apply a “360 degree pull” non-alkaline, woven fibreglass mesh (such as the Saint Gobain Adfors 0038/292 woven mesh, 145 g/m2 in weight, manufactured by Saint-Gobain Adfors America) to reinforce SikaTop® Seal-107CA layer along static hairline cracks, wall to slab transitions and patched areas. Using trowels, remove any wrinkles in the mesh by forcing the fabric down into the SikaTop® Seal-107CA. Ensure the mesh is completely embedded and covered with SikaTop® Seal-107CA. If any areas are not covered, apply additional SikaTop® Seal-107CA over top of the mesh to cover. Trowel to a smooth, uniform finish. Allow time for curing so that the surface can take foot traffic without harming the coating. Apply Sikagard® Color A50 Lo-VOC for a decorative and protective finish.

Use a hopper gun spray equipment, textured sprayer (e.g., Texspray E110c), or a rotor/stator pump equipment. Allow the first coat to harden (4 to 8 hours) prior to the application of the second coat. As soon as the mortar layer starts to set, a uniform surface texture can be obtained by rubbing the surface with a fine sponge or a plastic trowel. Do not overwork SikaTop® Seal-107CA during finishing and avoid the use of water. Where required, a third coat of SikaTop® Seal-107CA may be applied not later than 24 hours after the second coat (in this case, do not trowel or sponge finish the second coat). If waiting period exceeds 24 hours, light grit blasting is required prior to further applications.

Apply the first coat with a notched trowel and leave to harden (4 to 8 hours). Apply the second coat with a flat trowel.

Apply the first coat of SikaTop® Seal-107CA with horizontal brush strokes and leave to harden (4 to 8 hours). Apply the second coat with vertical brush strokes.

Concrete, mortar, and masonry surfaces must be clean, free from grease, oil, and loosely adhering particles. Steel and iron surfaces must be free from scale, rust, grease, and oil. All surfaces must be as true and flat as possible. An open-textured, sandpaper-like substrate is ideal (ICRI / CSP 3). All surfaces must be saturated surface dry (SSD), with no standing water at time of application. It is necessary to stop water ingress prior to the application of SikaTop® Seal-107CA. Use a quick setting, waterproof slurry (Sikaset® Plug) to seal water leaks.

Approximately 60 min at +20 °C (68 °F) and approximately 30 min at +30 °C (86 °F).

Component A:Component B
For Slurry consistency 1:4.1 by weight (full unit). And for Trowelable consistency 1:4.5 by weight (90 % liquid to full bag)
 

1 coat at 1.5 mm (60 mil) for approximately 6 m2/unit (65 ft2/unit).

2 coats at 1 mm (40 mil) per coat. Theoretical thickness (wet film) on smooth substrates: 2 kg/m2 (4.4 lb/10 ft2) = 1 mm (1 m2/L/mm). Three (3) coats may be required in areas of extreme high-water infiltration.

1 coat at 1 mm (40 mil).

One (1) kit yields 9 L (2.4 US gal.) of slurry.

Yes, SikaTop® Seal-107 has an excellent freeze/thaw resistance.

SikaTop® Seal-107 protects against concrete carbonation; 2 mm (80 mil) of SikaTop® Seal-107CA is equivalent to 150 mm (6 in) of concrete.

SikaTop® Seal-107 is applied to horizontal surfaces subject to light foot traffic, such as balconies.