Sika Seal-107 SikaTop Seal-107 DRYSEAL 20KG

Waterproofing damp-proofing cementitious slurry

SikaTop® Seal-107 DRYSEAL is a two part polymer modified cement based waterproof mortar slurry comprising of a liquid polymer and a cement based mix incorporating special admixtures. SikaTop® Seal-107 DRYSEAL complies with the requirements of EN 1504-2 as protective coating.

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• Easy to apply by brush or in thin trowel applications
• No water required
• Prebatched components

Usage

SikaTop® Seal-107 DRYSEAL 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
• Sealing fine “hairline” cracks in concrete structures (not subject to movement)
• Levelling mortar for concrete repair works

SikaTop® Seal-107 DRYSEAL can be used for concrete protection, in particular it is:

• Suitable for protection against ingress (Principle 1, method 1.3 in EN 1504-9)
• Suitable for moisture control (Principle 2, method 2.2 in EN 1504-9)
• Suitable for increasing for the resistivity (Principle 8, method 8.2 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

5 kg unit and 20 kg unit

Application Information

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

If waiting time period exceeds 24 hours, lightly blastclean the surface. SikaTop® Seal-107 DRYSEAL can be overpainted using solvent based primers or coatings. SikaTop® Seal-107 DRYSEAL must cure for a minimum of 7 days before overcoating.

Consumption

Consumption

Consumption is 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.).

• 1 unit of 20 kg yields ~ 10 litres of mortar
• 1 unit of 5 kg yields ~ 2.5 litres of mortar

Application steps

MIXING

Used as slurry:   A : B = 1 : 4 (parts by weight)
Used as mortar:  A : B = 1 : 4.5 (parts by weight)

Mixing Time: ~ 3 minutes. Mixing Tools: SikaTop® Seal-107 DRYSEAL 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

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. As a slurry: Apply the mixed SikaTop® Seal-107 DRYSEAL either mechanically, by spray or by hand using a stiff brush. Apply the first layer in one direction. Apply the 2nd coat of SikaTop® Seal-107 DRYSEAL, by brush, in a crosswise direction to the first application as soon as the first coat has hardened. As a mortar: When SikaTop® Seal-107 DRYSEAL 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 DRYSEAL 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 DRYSEAL 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