SikaTop® Seal-107 Elastic | Cement-Based Elastic Waterproofing Coating

14/07/2026

SikaTop® Seal-107 Elastic | Cement-Based Elastic Waterproofing Coating

What is Sikatop® Seal-107 elastic?

SikaTop® Seal-107 Elastic is a cement-based, two-component, flexible waterproofing coating material. It consists of a liquid polymer component (Component A) and a cement-based powder component (Component B) containing special additives.

When applied to surfaces, it forms a waterproof protective layer that safeguards concrete and mineral-based construction elements against water and moisture effects. Thanks to its elastic structure, it can bridge fine cracks and provide long-lasting waterproofing performance.

Key Features

✔ Cement-based, two-component waterproofing system
✔ Crack-bridging capability thanks to its elastic structure
✔ Resistant to positive water pressure
✔ Excellent adhesion to concrete and mineral substrates
✔ Resistant to freeze-thaw cycles
✔ Approved for contact with drinking water
✔ Provides long-lasting and reliable waterproofing protection

Applications

SikaTop® Seal-107 Elastic is a versatile waterproofing solution suitable for various structural elements in both indoor and outdoor applications.

Main application areas:

  • Concrete, plaster, brick, and block surfaces
  • Foundation and basement waterproofing
  • Waterproofing under ceramic tiles in bathrooms, showers, balconies, and terraces
  • Swimming pools
  • Drinking water tanks
  • Concrete surfaces exposed to freeze-thaw conditions
  • Waterproofing of fine and non-moving cracks

Advantages

Easy Application

The product can be prepared quickly and practically by mixing the two components together.

Flexible Structure

Its elastic formulation bridges fine cracks and creates a flexible yet durable waterproofing layer on the surface.

High Adhesion Strength

Provides strong bonding performance on concrete and mineral-based substrates.

Durable Protection

Offers high resistance against freeze-thaw cycles and various environmental effects.

Suitable for Drinking Water Contact

The product has approval for use in applications where contact with drinking water is required.

Technical Specifications

Product Type:
Cement-based, two-component elastic waterproofing material

Mixing Ratio:

  • Fluid consistency: 1 : 2 (A : B)
  • Plastic consistency: 1 : 2.5 (A : B)

Layer Thickness:
0.75 – 1.5 mm

Application Temperature:
+8°C to +30°C

Waiting Time Between Coats

  • +10°C → approximately 12 hours
  • +20°C → approximately 6 hours
  • +30°C → approximately 3 hours

Curing Time

Approximately 3–5 days depending on curing conditions. The surface should be protected using polyethylene sheets or suitable curing methods.

Packaging Options

  • 15 kg set
  • 30 kg set

Why Choose SikaTop® Seal-107 Elastic?

Choosing the right waterproofing product is essential for improving the durability and service life of structures.

SikaTop® Seal-107 Elastic provides a reliable waterproofing solution with its:

  • Flexible structure
  • High adhesion strength
  • Water impermeability
  • Crack-bridging capability
  • Long-lasting protection

It can be safely used in a wide range of applications, from foundations and basements to terraces, pools, and industrial structures.

Frequently Asked Questions (FAQ)

Where can SikaTop® Seal-107 Elastic be used?

It can be used on concrete and mineral-based surfaces exposed to water, including foundations, basements, balconies, terraces, bathrooms, showers, swimming pools, and drinking water tanks.

Is SikaTop® Seal-107 Elastic suitable for drinking water contact?

Yes. The product has official approval for applications involving contact with drinking water.

What is the recommended application thickness?

A coating thickness between 0.75 mm and 1.5 mm is generally recommended.

Is the product resistant to cracking?

Yes. Thanks to its elastic structure, it can bridge fine cracks and maintain waterproofing performance.

What is the packaging size?

SikaTop® Seal-107 Elastic is available in 15 kg and 30 kg sets.