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Sika Sikatop 121 Plus 106574

Two component, polymer modified, leveling and pore sealing mortar with the additional benefit of FerroGard 901, penetrating corrosion inhibitor. SikaTop 121 Plus provides a smooth substrate, free of irregularities and bug holes.

  • Excellent Adhesion to Concrete
  • High Flexural and Compressive Strengths
  • Increased Freeze/Thaw Durability
$65.47
SKU
17902

Sika SikaTop 121 Plus – Polymer-Modified Leveling and Pore Sealing Mortar

SikaTop 121 Plus is a two-component, polymer-modified, cementitious leveling and pore sealing mortar enhanced with Sika FerroGard 901, a penetrating corrosion inhibitor. Designed to provide a smooth, uniform surface free of irregularities and bug holes, it is ideal for use before applying protective coatings. This highly durable mortar enhances carbonation resistance, withstands freeze-thaw cycles, and resists deicing salts while maintaining water vapor transmission. Its excellent adhesion and high flexural and compressive strengths make it suitable for both interior and exterior applications.

Key Features:

  • Two-component, polymer-modified cementitious leveling mortar
  • Contains Sika FerroGard 901 for enhanced corrosion protection
  • Excellent adhesion to concrete and mortar substrates
  • Improved resistance to carbonation, freeze-thaw cycles, and deicing salts
  • Compatible with Sika FerroGard 903 for additional corrosion resistance
  • Can be used on horizontal, vertical, and overhead surfaces
  • Ideal for preparing concrete surfaces before protective coatings
  • Not flammable and suitable for interior and exterior use

Technical Specifications:

Property Value
Compressive Strength (1 day) 1,250 psi (8.6 MPa)
Compressive Strength (7 days) 5,000 psi (34.5 MPa)
Compressive Strength (28 days) 6,000 psi (41.4 MPa)
Flexural Strength (28 days) 2,000 psi (13.8 MPa)
Splitting Tensile Strength (28 days) 750 psi (5.2 MPa)
Tensile Bond Strength (28 days) 2,000 psi (13.8 MPa)
Pull-Out Resistance (28 days) 350 psi (2.4 MPa)
Chloride Permeability (28 days) ~500 coulombs
Layer Thickness 1/12" to 1/6" (2 mm to 4 mm)
Coverage 0.4 ft³ per bag (65 ft² at 1/12" thickness)
Pot Life ~45 minutes
Application Temperature Above 45°F (7°C)

Frequently Asked Questions:

What is Sika SikaTop 121 Plus used for?
It is used for leveling and pore sealing on concrete surfaces before the application of protective coatings. It can also be used for minor repairs and as a block filler.

Can SikaTop 121 Plus be used for overhead applications?
Yes, it is designed for horizontal, vertical, and overhead applications on concrete and mortar substrates.

Does it require a bonding agent?
A scrub coat of SikaTop 121 Plus can be applied before the main application, or a bonding agent such as Sika Armatec 110 EpoCem can be used for enhanced adhesion.

More Information
BrandSika
ManufacturerSika