Merks Waterproofing Products | Acry-Seal, Polyseal, Bitu-Rub for Reliable Protection

28/07/2026

Merks Waterproofing Products | Acry-Seal, Polyseal, Bitu-Rub for Reliable Protection

Merks Waterproofing Products | Acry-Seal, Polyseal, Bitu-Rub for Reliable Protection

Merks Waterproofing Systems: Acry-Seal, Bitu-Rub, Polyseal and Sealmax

Merks waterproofing products offer polyurethane, bitumen, and acrylic-based solutions designed to provide maximum protection in foundations, terraces, roofs, and wet areas. These systems help prevent water and moisture damage, increase structural durability, and contribute to the long-term performance of buildings.

Product Groups and Application Areas

Product GroupProduct SeriesApplication Areas
Acrylic-BasedAcry-Seal AB580 / AB585Bathrooms, balconies, interior surfaces
Bitumen-Rubber BasedBitu-Rub BB593, Bituma 2KFoundations, retaining walls, parking structures
Polyurethane-BasedPolyseal PB520, Purseal P1000Terraces, roofs, UV-exposed areas
Elastomeric Resin-BasedSealmax CB 504Under-tile waterproofing, interior and exterior surfaces
Injection SystemsPolyinject, EpoInjectCrack injection and structural repairs
Drainage SystemsDrenflowRoof and floor drainage applications

1. Acry-Seal AB580 / AB585 – Acrylic-Based Waterproofing

Features

  • Water-based, elastic, ready-to-use formulation
  • Easy application by brush, roller, or trowel
  • AB585 offers enhanced UV resistance for exposed areas
  • Excellent crack-bridging performance due to high flexibility

Areas of Application

  • Bathrooms and toilets
  • Balconies
  • Under-terrace waterproofing
  • Exterior render and plaster surfaces

2. Bitu-Rub BB593 / Bituma 2K – Bitumen-Rubber Waterproofing Systems

Features

  • Elastomeric bitumen technology providing excellent waterproofing
  • Available in single-component and two-component versions
  • Elongation exceeding 400%
  • Strong adhesion to most construction substrates
  • Can be applied without primer on many surfaces

Areas of Application

  • Foundation walls
  • Basement waterproofing
  • Retaining walls
  • Water tanks
  • Parking structures

3. Polyseal PB520 & Purseal P1000 – Polyurethane Waterproofing Systems

Advantages

  • Available in one-component and two-component formulations
  • High UV resistance
  • Excellent temperature resistance
  • Walkable waterproof membrane surface
  • Resistant to impact and thermal expansion

Areas of Application

  • Terraces and roofs
  • Metal roofing systems
  • Walkways and exposed surfaces

4. Sealmax CB 504 – Elastomeric Resin-Based Waterproofing System

Technical Features

  • Cement-based formulation with elastomeric resin technology
  • Density: approximately 1.6 g/cm³
  • Low water vapor permeability
  • Excellent adhesion to construction surfaces

Areas of Application

  • Under ceramic tile waterproofing
  • Interior and exterior wall applications
  • Floor preparation systems

5. Polyinject and EpoInject – Injection Systems

Purpose

Designed to stop water ingress through cracks and improve structural stability.

Product Types

Polyinject

A polyurethane-based injection system suitable for sealing active water leaks and cracks.

EpoInject

An epoxy-based injection system used for structural crack repair and strengthening applications.

6. Drenflow – Drainage and Water Management Systems

Function

Drenflow systems help prevent water accumulation and hydrostatic pressure while supporting the effectiveness of waterproofing systems.

Areas of Application

  • Terrace drainage systems
  • Roof drainage systems
  • Basement drainage applications
  • Wet-area water management

Advantages of Merks Waterproofing Systems

Comprehensive Protection

Provides reliable protection against water penetration and moisture-related damage.

High Flexibility

Accommodates structural movement and minor crack formation.

UV Resistance

Selected products offer long-term durability in exposed outdoor environments.

Easy Application

Can be applied using brush, roller, trowel, or spray equipment depending on the product.

Long Service Life

When properly installed and maintained, waterproofing systems can provide decades of reliable performance.

Frequently Asked Questions (FAQ)

1. Which products provide UV resistance?

Polyseal PB520, Purseal P1000, and Acry-Seal AB585 are designed with UV-resistant properties for exposed outdoor applications.

2. Which products are recommended for wet areas?

Acry-Seal AB580 and Sealmax CB 504 are suitable for waterproofing bathrooms, kitchens, and other wet areas beneath ceramic tiles.

3. How long do Merks waterproofing systems last?

With proper application and maintenance, Merks waterproofing products can provide protection for 20–30 years or longer, depending on environmental conditions and system selection.

4. Can bitumen-based products be applied without primer?

Yes. Products such as Bitu-Rub BB593 can often be applied directly to suitable substrates without the need for a primer.

5. Which waterproofing system is best for terraces and roofs?

Polyseal PB520 and Purseal P1000 are commonly preferred for terraces and roofs due to their flexibility, UV resistance, and long-term weather durability.

Why Choose Merks Waterproofing Products?

Merks waterproofing systems combine advanced waterproofing technologies with durability, flexibility, and ease of application. Whether protecting foundations, terraces, roofs, wet areas, or structural cracks, Merks offers reliable solutions designed to extend the service life of buildings and infrastructure.

Merks Acry-Seal, Bitu-Rub, Polyseal, Sealmax, Polyinject, and Drenflow systems provide comprehensive waterproofing and moisture protection for modern construction projects.