MasterSeal 550 Acrylic reinforced cementitious, flexible waterproof coating

Formerly: Masterseal 550

How does MasterSeal 550 work?

MasterSeal 550 is a two component acrylic modified cementitious coating that requires only on site mixing. Once mixed the product is applied by stiff brush, roller or trowel to form a waterproof, flexible protective coating. MasterSeal 550 provides an effective barrier to waterborne salts and atmospheric gases.


Fluid applied, MasterSeal 550 provides a hard wearing, seamless, waterproof membrane for roofs and foundation protection.

What is MasterSeal 550 used for?

MasterSeal 550 is designed for use for the following applications:

To reface and even out variations in concrete surfaces.

As a waterproof lining for water retaining structures.

For coating seawater channels.

Sealing and coating tie bar holes to ensure watertightness.

For waterproofing and protection against brackish water.

To provide foundation protection.

As a waterproof coating for roofs.

As a backing to marble and granite to prevent tile adhesive mix water absorption and thus alleviate surface staining.

To provide protection to concrete surfaces from carbonation and chloride attack.

For use on pedestrian walkways in marine areas.

What are the benefits of MasterSeal 550?

MasterSeal 550 offers the following advantages:

Waterproof

Excellent adhesion.

Bonds to porous and nonporous surfaces.

Flexible.

Non toxic suitable for contact with potable water.

Suitable for light pedestrian traffic.

Breathable - whilst repelling water, allows substrate to breathe.

High resistance to chloride ion diffusion.

Unlike conventional coatings which require a 7- 28 day cure of concrete, MasterSeal 550 can be applied to 24 hour-old concrete thereby giving immediate protection.

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