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Sika Sikatop 121 Plus
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
$72.46
SKU
17902
Sika SikaTop-121 Plus Cementitious Leveling Mortar – 46.5 lb Bag + 1 Gal Jug
SikaTop-121 Plus is a two-component, polymer-modified cementitious mortar enhanced with FerroGard 901 penetrating corrosion inhibitor. Designed for vertical, horizontal, and overhead applications, this system creates a smooth, dense surface ready for protective coatings. It provides exceptional adhesion, high flexural and compressive strengths, and superior resistance to freeze/thaw cycles, carbonation, and deicing salts. The included corrosion inhibitor protects steel reinforcement—even in adjacent concrete—making it an ideal solution for long-lasting repairs and leveling work.
Key Features:
- Polymer-modified system with penetrating corrosion inhibitor (FerroGard 901)
- Excellent adhesion to concrete and mortar substrates
- High compressive strength: 6,000 psi at 28 days
- Improves carbonation resistance without blocking vapor transmission
- Durable against freeze/thaw cycles and deicing salts
- Compatible with protective coatings and primers
- Non-flammable and VOC-compliant
Applications:
- Leveling and pore sealing mortar before applying protective coatings
- Concrete repairs on interior and exterior surfaces
- Block filler and skim coating on vertical or overhead surfaces
- Minor repair of gouges and broken edges in concrete
- Above grade, on-grade, and below grade concrete or mortar substrates
Technical Specifications:
| Property | Value |
|---|---|
| Compressive Strength | 6,000 psi @ 28 days |
| Flexural Strength | 2,000 psi @ 28 days |
| Tensile Strength | 2,000 psi @ 28 days |
| Splitting Tensile Strength | 750 psi |
| Chloride Permeability | ~500 Coulombs @ 28 days |
| Coverage | 65 ft² at 1/12" thickness per kit |
| Layer Thickness | 1/12" (min) to 1/6" (max) |
| Working Time | ~45 minutes at 73°F |
| Packaging | 46.5 lb bag + 1 gal jug (Component A & B) |
| Color | Concrete gray |
Frequently Asked Questions:
Can I apply coatings over SikaTop-121 Plus?
Yes, but avoid curing compounds as they interfere with coating adhesion. Follow surface prep guidelines before applying coatings.
Can this product be used on vertical and overhead surfaces?
Yes, SikaTop-121 Plus is formulated for use on vertical, horizontal, and overhead surfaces.
Does it require a primer before use?
You can use a wet scrub coat of the product itself or apply Sika Armatec 110 EpoCem to prime the concrete substrate.
| Brand | Sika |
|---|---|
| Manufacturer | Sika |
