Merks Acry Seal AB 585: Ready-to-Use Elastic Waterproofing Solution

Merks Acry Seal AB 585 is a ready-to-use liquid waterproofing membrane based on acrylic copolymer elastomeric resin technology. Its highly elastic structure accommodates substrate movement while creating a durable and seamless waterproofing layer. Suitable for both horizontal and vertical applications, it provides long-lasting protection against water penetration in a wide range of construction projects.

Its solvent-free formulation, ease of application, and excellent adhesion make it an ideal waterproofing solution for balconies, terraces, roofs, and wet areas.

Key Features

  • Ready-to-use acrylic waterproofing membrane
  • Elastic structure accommodates substrate movement
  • Suitable for horizontal and vertical surfaces
  • Excellent adhesion to various construction substrates
  • Solvent-free and environmentally friendly
  • Can be applied by brush, roller, or spray equipment
  • Water-thinnable for priming absorbent surfaces
  • Creates a seamless waterproofing layer
  • Paintable after curing
  • Long-term flexibility, even at low temperatures

Applications

Merks Acry Seal AB 585 is suitable for:

  • Protected balconies, terraces, and roof systems
  • Bathrooms, showers, and wet rooms
  • Horizontal and vertical concrete surfaces
  • Cementitious substrates
  • Renovation and refurbishment projects requiring flexible waterproofing

Advantages

Ready-to-Use Formula

No mixing is required. The product can be applied directly from the container, reducing preparation time and ensuring consistent performance.

High Flexibility

Maintains elasticity even in low-temperature conditions and helps absorb minor structural movements.

Strong Adhesion

Provides excellent bonding to concrete, cement-based substrates, and properly prepared surfaces.

Seamless Waterproofing

Creates a continuous membrane without joints, reducing potential leakage points.

Easy Application

Can be applied using a roller, brush, or spray equipment, making it suitable for both small and large areas.

Surface Preparation

Before application:

  • Remove dust, dirt, grease, oil, rust, and loose particles.
  • Clean heavily contaminated surfaces using water jet cleaning if necessary.
  • Repair cracks, voids, and damaged sections using Merks Repair Plus repair mortars.
  • Form proper coves and fillets at corner transitions in wet areas.
  • Apply anti-corrosion primer to steel surfaces before waterproofing.
  • On highly absorbent substrates, the product may be diluted with water and used as a primer coat.

The substrate must be sound, clean, and sufficiently cured before application.

Application Procedure

First Coat

Apply the product uniformly using a roller, brush, or spray equipment in a single direction.

Second Coat

Apply the second coat perpendicular to the first coat to achieve complete waterproof coverage.

Reinforcement

In areas with a high risk of cracking or movement, the use of Merks Bandix DB 888 reinforcement tape is recommended.

Application Consumption

Application ThicknessConsumption
1 mm ThicknessApprox. 1.5 kg/m²

A minimum of two coats is recommended for optimum waterproofing performance.

Technical Specifications

PropertyValue
Material CompositionElastomeric resin with polymer additives
AppearanceGrey or white liquid
DensityApprox. 1.35 kg/L
Application Temperature+5°C to +35°C
Waiting Time Between Coats4–5 hours at 20°C
Service Temperature-20°C to +80°C
Commissioning TimeMinimum 3 days
Adhesion Strength≥ 1.00 N/mm² (28 days)
Application MethodBrush, roller, spray

Packaging and Storage

Merks Acry Seal AB 585 is supplied in:

  • 20 kg plastic bucket

Store in unopened packaging under dry, frost-free conditions. Shelf life is 12 months when stored properly.

Important Notes

  • Apply only to surfaces exposed to positive water pressure.
  • Ambient and substrate temperatures must remain between +5°C and +35°C.
  • The second coat should always be applied perpendicular to the first coat.
  • Waterproofed surfaces must be protected with an appropriate finishing layer after application.
  • Keep the container closed during long application breaks.
  • Clean all tools with water immediately after use.

Why Choose Merks Acry Seal AB 585?

Merks Acry Seal AB 585 combines flexibility, ease of application, and durable waterproofing performance in a ready-to-use solution. Its seamless membrane structure, strong adhesion, and solvent-free formulation make it an excellent choice for protected exterior surfaces and interior wet areas requiring reliable waterproof protection.

Frequently Asked Questions (FAQ)

1. On which surfaces can Merks Acry Seal AB 585 be applied?

It can be applied to horizontal and vertical surfaces, including balconies, terraces, roofs, bathrooms, and other wet areas.

2. Is the product ready to use?

Yes. Merks Acry Seal AB 585 is supplied ready for application and does not require mixing.

3. How many coats should be applied?

A minimum of two coats is recommended for effective waterproofing performance.

4. How long should I wait between coats?

At an ambient temperature of 20°C, allow approximately 4–5 hours between coats.

5. Can it be applied by spray equipment?

Yes. The product can be applied using a brush, roller, or spray equipment depending on project requirements.

6. Is it suitable for exterior applications?

Yes. It is suitable for protected balconies, terraces, and roof systems where a flexible waterproofing membrane is required.