Sika MonoTop®-620

USES

Sika MonoTop®-620 can be applied with or without a reinforcement mat over concrete or mortar surfaces, including over SikaTop® or Sika MonoTop® mortars. Its main applications include:

• Concrete/mortar pore sealing or leveling mortar
• Thin-layer rendering over vertical or horizontal structural elements
• Repairing minor defects like pores and honeycombed concrete
• Restoration of edges and joints
• Suitable for restoration work (EN 1504-9, Principle 3, methods 3.1 and 3.3)

CHARACTERISTICS / ADVANTAGES

• Easy to apply
• Complies with class R3 of EN 1504-3
• Adjustable consistency for improved workability
• No bonding primer needed even when applied manually
• Can be applied by hand or machine
• Low shrinkage
• Non-corrosive
• A1 fire rating for the grey version

PRODUCT INFORMATION

• Chemical Base: Cement, selected aggregates, silica fume, and synthetic resins
• Packaging: 25 kg bags
• Appearance/Color: Light grey powder
• Shelf Life: 12 months when stored correctly
• Storage: Keep in the original sealed packaging, in dry, cool conditions
• Fresh Mortar Density: ~2.2 kg/l (at 20°C)
• Maximum Grain Size: 0.7 mm
• Soluble Chloride Ion Content: < 0.01% (EN 1015-17)

TECHNICAL INFORMATION

• Compressive Strength: ~43 MPa (EN 12190)
• Modulus of Elasticity in Compression: ~22 GPa (EN 13412)
• Tensile Strength in Flexure: ~8 MPa (28 days) (EN 196-1)
• Restrained Shrinkage/Expansion: ~2.0 MPa (EN 12617-4)
• Tensile Adhesion Strength: ~2 MPa (EN 1542)
• Reaction to Fire: Euro Class A1
• Capillary Absorption: ~0.4 kg.m-2.h-0.5 (EN 13057)
• Carbonation Resistance: dk = 3.7 mm (EN 13295)

SYSTEM INFORMATION

Sika MonoTop®-620 is part of the Sika range of mortars, all of which comply with the relevant parts of European Standard EN 1504. It works alongside:

• Bonding Primer/Reinforcement Corrosion Protection: Sika MonoTop®-910 S
• Repair Mortar: Sika MonoTop®-412, 352, 211 series
• Levelling Mortar: Sika MonoTop®-620

APPLICATION INFORMATION

• Mixing Ratio: ~4.0 liters of water per 25 kg bag (100:16 powder to water)
• Consumption: Approximately 17.4 kg of powder per m² per cm thickness (depends on substrate roughness and layer thickness)
• Yield: 25 kg powder yields approximately 14.5 liters of mortar
• Layer Thickness: Minimum 1.5 mm / Maximum 5.0 mm
• Ambient Air Temperature: Minimum +5°C, Maximum +30°C
• Substrate Temperature: Minimum +5°C, Maximum +30°C
• Pot Life: ~30-45 minutes at +20°C