Waterproofing

MasterSeal 550

An acrylic reinforced, cement-based, flexible waterproof coating

 

Formerly MasterSeal 550M

Description

MasterSeal 550 is a two-component, acrylic modified cement-based coating that requires only on-site mixing forming the ideal product to waterproof and resurface concrete, masonry, and most other construction materials. Simply applied by stiff brush, roller or trowel, it forms a waterproof, flexible coating.

MasterSeal 550 provides an effective barrier to waterborne salts and atmospheric gases. Fluid applied, MasterSeal 550 provides a hardwearingseamlesswaterproof membrane for roofs and foundation protection.​

Where is MasterSeal 550 applied?

  • To reface and even out variations in concrete surfaces
  • As a waterproof lining for water retaining structures like water tanks, pools, reservoires, etc.
  • For coating seawater channels
  • Sealing and coating tie bar holes to ensure water tightness
  • For waterproofing and protection against brackish water
  • To provide foundation & retaining walls protection
  • As a waterproof coating for roofs
  • As a backing to marble and granite to prevent water ingress, 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 advantages of MasterSeal 550?

  • A 1mm coating provides anti-carbonation cover equivalent to over 80cm of concrete
  • Waterproof – resists up to 7 Bars (70 metre head) of pressure
  • Excellent adhesion – bonds to porous and non-porous 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 carbon dioxide and 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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