Sealcoat Elastic 380 – Malaysia’s Trusted 2K Cementitious Waterproofing Solution

Protecting Buildings Against Water Ingress with Advanced Cementitious Technology

Water leakage remains one of the most common and costly defects in Malaysian buildings. With our tropical climate, heavy rainfall, high humidity, and continuous exposure to moisture, selecting the right waterproofing system is critical for ensuring long-term durability and structural integrity.

Sealcoat Elastic 380 by Topkrete is a high-performance two-component (2K) polymer-modified cementitious waterproofing coating specifically designed to provide reliable waterproofing protection for concrete and masonry structures. It has been widely used throughout Malaysia in residential, commercial, industrial, and infrastructure projects. The flexibility, strong adhesion, and crack-bridging capability of 2K cementitious systems make them a preferred choice for wet areas, water-retaining structures, balconies, roofs, and basements.

What is Sealcoat Elastic 380?

Sealcoat Elastic 380 consists of:

• Component A: Cementitious powder blend
• Component B: Special polymer liquid emulsion

When mixed together, the two components form a seamless waterproof membrane that bonds tightly to concrete surfaces while maintaining flexibility to accommodate minor structural movements.

Unlike traditional rigid waterproofing coatings, Sealcoat Elastic 380 offers excellent elasticity and crack-bridging performance, enabling it to withstand hairline cracks and thermal movement without compromising waterproofing integrity.

Key Benefits of Sealcoat Elastic 380

1. Excellent Waterproofing Performance

The coating forms a continuous waterproof barrier that prevents water penetration while maintaining strong adhesion to concrete and masonry substrates.

2. Crack Bridging Capability

Hairline cracks often develop due to concrete shrinkage and thermal movement. Sealcoat Elastic 380 is designed to bridge these micro-cracks, helping to prevent future leakage. Crack-bridging performance is one of the key advantages of flexible polymer-modified cementitious waterproofing systems.

3. Strong Adhesion to Concrete

The polymer modification enhances bonding strength, allowing the coating to become an integral part of the concrete substrate without peeling or delamination.

4. Breathable Membrane

Sealcoat Elastic 380 allows water vapor to escape from the substrate while preventing liquid water ingress, reducing the risk of trapped moisture and blistering.

5. Easy Application

The product can be applied by brush, roller, trowel, or spray equipment, making it suitable for both new construction and repair projects.

6. Suitable for Potable Water Structures

Once cured, the coating is non-toxic and suitable for water-retaining structures such as water tanks and reservoirs.

Typical Applications

Sealcoat Elastic 380 is widely specified for:

Bathrooms & Wet Areas

• Bathrooms
• Shower rooms
• Toilets
• Kitchens

External Areas

• Balconies
• Roof slabs
• Terraces
• Podium decks

Below-Ground Structures

• Basements
• Lift pits
• Retaining walls
• Foundation walls

Water-Retaining Structures

• Water tanks
• Swimming pools
• Reservoirs
• STP and WTP structures

Industrial Applications

• Utility rooms
• Mechanical rooms
• Industrial wet process areas
• Infrastructure projects

2K cementitious waterproofing systems are commonly used in these applications due to their flexibility, durability, and ability to resist hydrostatic pressure.

Why Consultants and Contractors Choose Sealcoat Elastic 380

Topkrete has supplied waterproofing solutions to some of Malaysia’s most prestigious developments, including luxury hotels, high-rise residences, industrial facilities, and infrastructure projects.

Sealcoat Elastic 380 is trusted because it offers:

• Proven performance in Malaysian weather conditions
• Excellent crack-bridging capability
• Strong adhesion to concrete
• Compatible with tile adhesive systems
• Suitable for internal and external applications
• Easy maintenance and repair
• Cost-effective long-term waterproofing solution

The combination of flexibility, adhesion, and durability makes polymer-modified 2K cementitious coatings one of the most widely used waterproofing technologies in modern construction.

Recommended Application System

1. Surface preparation and crack repair
2. Saturate the surface with clean water
3. Apply the first coat of Sealcoat Elastic 380
4. Embed reinforcing mesh at critical areas if required
5. Apply the second coat perpendicular to the first coat
6. Allow curing before protective screed or tile installation

Proper surface preparation and correct application thickness are essential for achieving long-term waterproofing performance.

Conclusion

When it comes to reliable waterproofing protection, Sealcoat Elastic 380 delivers the performance demanded by consultants, contractors, and building owners throughout Malaysia. Its superior adhesion, flexibility, crack-bridging properties, and long-term durability make it an ideal solution for both new construction and refurbishment projects.

Whether protecting a bathroom, balcony, basement, water tank, or roof slab, Sealcoat Elastic 380 provides the confidence of a proven waterproofing system designed for Malaysia’s challenging tropical environment.

Topkrete – Waterproofing Excellence Since 1991

With more than 35 years of waterproofing experience, Topkrete continues to provide innovative waterproofing solutions that protect buildings and infrastructure across Malaysia and the region.

Topkrete – Waterproofing is a System, Not Just a Product.