Product Data Sheet Show all documents
Parex High Build Protective Coating

Parex High Build Protective Coating

2-component, solvent-free, epoxy resin high build protective coating

Parex High Build Protective Coating is a two-part, solvent-free epoxy resin product consisting of a pigmented base resin component plus a pale yellow hardener component. The colour coding enables homogeneous mixing to be easily achieved. The product is applied as a high build protective coating to steel, iron, aluminium, concrete, masonry, hard natural stone and other construction materials. Applied coating is resistant to mechanical damage, abrasion and will give protection against weathering, chemical attack and corrosion. The product gives a high build coating in a single application which cures to hard semi-gloss finish within 24 hours.

  • Easy to mix and apply. 
  • Different coloured components for mixing control. 
  • Excellent adhesion to most construction materials. 
  • No primer required. 
  • Impermeable to most liquids and water vapour. 
  • Good adhesion to dry and matt damp concrete. 
  • Hardens without shrinkage. 
  • Outstanding abrasion and mechanical damage resistance. 
  • Offers excellent protection against weathering and chemical attack. 
  • Protects against corrosion of reinforcement. 
  • Extremely high carbon dioxide permeability. 
  • Very effective as equivalent concrete cover (173µm dry film thickness will provide the same protection as ~600mm of 'good quality' concrete). 
  • Temperature application range +10 oC to +35 oC. 
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Product Data Sheet Show all documents

Usage

Parex High Build Protective Coating offers protection in a variety of applications, including:        
  • Steel fabrications and reinforcements.
  • Floors, walls and soffits.
  • Marine and sewage works.
  • Warehouse storage areas plus industrial factory areas.
  • Exposed reinforcing strand ends.
  • Exposed reinforcing steel ends.
  • Precast concrete elements. 
  • Concrete found to have 'low cover' to the reinforcement. 
 

Advantages

  • Easy to mix and apply. 
  • Different coloured components for mixing control. 
  • Excellent adhesion to most construction materials. 
  • No primer required. 
  • Impermeable to most liquids and water vapour. 
  • Good adhesion to dry and matt damp concrete. 
  • Hardens without shrinkage. 
  • Outstanding abrasion and mechanical damage resistance. 
  • Offers excellent protection against weathering and chemical attack. 
  • Protects against corrosion of reinforcement. 
  • Extremely high carbon dioxide permeability. 
  • Very effective as equivalent concrete cover (173µm dry film thickness will provide the same protection as ~600mm of 'good quality' concrete). 
  • Temperature application range +10 oC to +35 oC. 

Packaging

1.655 kg Combined Units 

Colour

Resin Component

Dark Grey

Hardener Component

Pale Yellow

Mixed Product

Concrete Grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Carbon Dioxide Permeability in accordance with EN 1062-6: Paints and varnishes - Coating materials and coating systems for exterior masonry and concrete - Determination of carbon dioxide permeability - Classification C1.

 
Product Information

Shelf Life

12 months from the date of manufacture

Storage Conditions

The Product should be kept in dry conditions at a temperature of +5 oC to +35 oC. Storage at higher temperatures and high humidity may reduce the shelf life.

Density

Mixed product: ~1.65 kg/l

Solid content by volume

~100 %
Technical Information

Reaction to Fire

When mixed, Parex High Build Protective Coating is classified as non-flammable.

Permeability to CO2

302m

Classification C1

EN 1062-6

Application

Application Information

Product Temperature

Maximum

+35 oC

Minimum

+10 oC

Ambient Air Temperature

Maximum

+35 oC

Minimum

+10 oC

Dew Point

Beware of condensation. Steel substrate temperature during application must be at least +3 oC above dew point.

Substrate Temperature

Maximum

+35 oC

Minimum

+10 oC

Pot Life

~45 Minutes

Curing Time

Initial usage: ~24 Hours (at +20 oC)
Full cure: ~7 Days (at +20 oC)

Tack Free Time

~6 Hours
Consumption

Consumption

Coverage is approximately 3m2 per litre / each 1.655 kg unit. 

Yield

Each 1.655 kg unit will yield approximately 1 litre of mixed material.
Application steps

SUBSTRATE QUALITY

CONCRETE / MASONRY / MORTAR / STONE

    

Concrete and mortar must be at least 3 to 6 weeks old. Substrate surfaces must be sound, clean, dry or matt damp. The surfaces shall be free from standing water, ice, dirt, oil, grease, coatings, laitance, efflorescence, old surface treatments, all loose particles and any other surface contaminants that could affect adhesion of the Product.

       

STEEL

       

Surfaces must be clean, dry, free from oil, grease, coatings, rust, scale, all loose particles and any other surface contaminants that could affect adhesion of the bonding agent.

        

WOOD

      

Substrate surfaces must be sound, clean, dry and free from dirt, oil, grease, coatings, all loose particles and any other surface contaminants that could affect adhesion of the Product.

      

POLYESTER / EPOXY / CERAMICS / GLASS

      

Surfaces must be clean, dry, free from oil, grease and any other surface contaminants that could affect adhesion of the Coating.

SUBSTRATE PREPARATION

CONCRETE / MASONRY / MORTAR / STONE

       

Substrates must be prepared mechanically using suitable abrasive blast cleaning, needle gunning, light scabbling, bush hammering, grinding or other suitable equipment to achieve an open-textured, gripping surface profile.

      

STEEL

      

Surfaces must be prepared mechanically using suitable abrasive blast cleaning, grinding, rotating wire brush or other suitable equipment to achieve a bright metal finish with a surface profile to satisfy the necessary tensile adhesion strength requirement. Avoid dew point conditions before and during application.

      

WOOD

      

Surfaces must be prepared by planing, sanding or other suitable equipment.

      

POLYESTER / EPOXY

      

Surfaces must be prepared by abrading using suitable equipment.

       

CERAMICS / GLASS

        

Surfaces must be prepared by abrading using suitable equipment. Do not apply to siliconised substrates.

       

ALL SUBSTRATES

      

All dust and loose material must be completely removed from all substrate surfaces before application of the product by vacuum / dust removal equipment.

MIXING

Parex High Build Protective Coating base resin component is supplied in a container which is large enough to receive the hardener component and act as the mixing vessel.

Pour the entire hardener component into the base container and mix using a slow speed high torque drill with a Mortar Stirrer.

Mixing should be continued for two minutes to achieve a uniform consistency and colour.

APPLICATION

Apply the Parex High Build Protective Coating as a single thick coat using a stiff bristle brush.

Do not attempt to brush out the applied material.

The applied thickness of 300 microns may be monitored using a simple thickness gauge to check the application during the work.

CLEANING OF TOOLS

All tools and equipment should be cleaned with Sika® Thinner C.

Hardened Parex High Build Protective Coating may only be removed mechanically.

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