Cementitious Waterproofing SikaTop-551 Seal

Get a Price/Quote

Cementitious Waterproofing SikaTop-551 Seal Specification

HS Code
3824

Smell
Slight, cementitious

Physical Form
Powder and Liquid (two-component system)

Type
Cementitious Waterproofing Slurry

Feature
Flexible, two-component waterproofing coating

Ph Level
~12 (mixed state)

Usage
Waterproofing and protection of concrete and masonry structures

Grade
Construction Grade

Molecular Formula
N/A (Mixture)

Other Names
SikaTop-551 Seal, Sika Waterproofing System

CAS No
Mixture

Application
Bathrooms, balconies, terraces, water tanks, swimming pools, external and internal waterproofing

Poisonous
Non-poisonous

Appearance
Grey powder and white liquid polymer

Water Content
Contains water in liquid component

Chemical Name
Modified Cementitious Blend

Purity
Proprietary blend

Color
Grey (after mixing)

Mix Ratio
Powder : Liquid = 3 : 1 by weight

Storage Conditions
Store in cool, dry place, protected from moisture and direct sunlight

Compressive Strength
> 20 N/mm2 after 28 days at 27C

Bond Strength to Concrete
> 1 N/mm2

Dry Film Thickness
Approx. 1 mm per coat

Curing Time
Allow 7 days full cure for immersion

Water Permeability
Impermeable up to 5 bar (positive pressure)

Shelf Life
12 months from manufacturing date in unopened, original packaging

Number of Coats Recommended
2 coats

Pot Life
~30 minutes at 27C

Flexural Strength
> 5 N/mm2 after 28 days

Cementitious Waterproofing SikaTop-551 Seal Trade Information

Delivery Time
1 Days

About Cementitious Waterproofing SikaTop-551 Seal

91 000 74051 SikaTop-551 Seal is a two-component acrylic modified cementitious coating applied by brush, roller or trowel to waterproof and resurface concrete, masonry, and most other construction materials.It is manufactured locally in India . SikaTop-551 Seal provides an effective barrier to waterborne salts and atmospheric gases. Fluid applied, SikaTop-551 Seal provides a hard wearing, seamless, waterproof membrane for wet areas, roofs and foundation protection.

Reliable Cementitious Waterproofing

SikaTop-551 Seal provides a robust and flexible solution for waterproofing, combining the durability of modified cement with innovative polymer technology. The two-component formulation ensures deep adhesion and a seamless barrier against water ingress, making it suitable for demanding construction applications in both new and retrofit projects.

Multi-purpose Use and High Performance

Designed specifically for the Indian environment, SikaTop-551 Seal is ideal for a range of waterproofing needs including bathrooms, swimming pools, terraces, and water tanks. Its impermeability up to 5 bar and excellent bonding strength guarantee superior waterproofing and extended service life of concrete structures.

Easy Application and Lasting Protection

The system is user-friendly and straightforward to mix and apply, requiring only simple tools and basic preparation. With a curing time of just 7 days for immersion and a recommended two-coat application, users enjoy both speed and reliability, ensuring long-term protection against water-related damage.

FAQ's of Cementitious Waterproofing SikaTop-551 Seal:

Q: How should SikaTop-551 Seal be mixed and applied for optimal results?

A: Mix SikaTop-551 Seal in a 3:1 weight ratio of powder to liquid. Stir the liquid component first and then gradually add the powder, blending until a lump-free, smooth slurry is achieved. Apply with a brush or trowel in two coats, allowing sufficient drying time between each layer. Ensure substrate is clean and moistened but without standing water.

Q: What are the main benefits of using SikaTop-551 Seal for waterproofing?

A: This product offers excellent adhesion, flexibility, and resistance to water under positive pressure (up to 5 bar). It enhances the longevity and durability of treated structures, prevents water ingress and subsequent deterioration, and is suitable for both indoor and outdoor applications, delivering high compressive and flexural strengths.

Q: When can the waterproofed surface be subjected to water immersion or regular use?

A: Allow at least 7 days of curing at 27C after the final coat before exposing the surface to immersion conditions, such as in swimming pools or water tanks. For regular foot traffic or light use, ensure that the system has set thoroughly-typically after 24 to 48 hours.

Q: Where is SikaTop-551 Seal most commonly applied?

A: It is commonly used for waterproofing in bathrooms, balconies, terraces, water tanks, swimming pools, and other concrete or masonry structures that require strong waterproofing and protection from water ingress.

Q: What is the shelf life and storage requirement for SikaTop-551 Seal?

A: SikaTop-551 Seal has a shelf life of 12 months from the manufacturing date when stored unopened in its original packaging. It should be kept in a cool, dry place, protected from moisture and direct sunlight to maintain its efficacy.

Q: Is SikaTop-551 Seal suitable for both internal and external waterproofing applications?

A: Yes, this flexible cementitious waterproofing system is engineered for both internal (like bathrooms) and external (such as terraces, balconies) surfaces, offering durable protection under varying environmental conditions.

Tell us about your requirement