Product Data Sheet Show all documents

Parex Paraguard

WATER & STAIN REPELLENT COATING 

PARAGUARD is a water based coating, which provides a weatherproof, lotus leaf effect, water resistant surface to a range of render, paving, masonry and timber substrates. PARAGUARD is safe to the environment and to those using it. The product may be applied by brush, lambswool roller or airless spray gun* followed by lambswool roller to achieve a non-staining, clear, natural coating which is easily cleaned. Subject to the type of substrate applied to, the product offers resistance to the following; water, dirt, oil, grease, atmospheric pollutants and vehicle fumes. PARAGUARD is pre-packaged and ready for on-site use. The product is non-sacrificial, so once cleaned, will not need to be re-coated. Aesthetically, the exterior remains cleaner as dirt merely runs off the surface whenever water hits the facade. PARAGUARD finish is specially formulated with exceptional hydrophobic properties. Buildings specified with PARAGUARD finish are cleaned time and time again with natural rain water. As water hits the surface, it simply beads off the exterior and takes any dirt, grime or soil in its path with it.  The hydrophobic qualities also make the surface more resistant to mould, algae and mildew. Overall, buildings will remain cleaner and dryer.  

  • Protects facades with non-film forming coating.
  • Does not alter surface appearance.
  • Vapour permeable
  • Excellent substrate penetration.
  • Long lasting protection.
  • Water-based with zero VOC’s.
  • Improved protection against mould and mildew.
  • Can be used on damp substrates. 
  • UV and weather resistant.
Product Data Sheet Show all documents

Usage

PARAGUARD is ideal for horizontal and vertical surfaces on new construction, retrofit and refinish projects, over Parex External Insulation
Facades, render, masonry, timber or concrete substrates. PARAGUARD is ideal for protecting facades or surfaces that are located near the coast, situated in highly exposed locations or where the wind driven index ratings are ‘Severe’ or Very Severe’.

Advantages

  • Protects facades with non-film forming coating.
  • Does not alter surface appearance.
  • Vapour permeable
  • Excellent substrate penetration.
  • Long lasting protection.
  • Water-based with zero VOC’s.
  • Improved protection against mould and mildew.
  • Can be used on damp substrates. 
  • UV and weather resistant.

Packaging

5 litre container
25 litre container

Product Details

Product Information

Shelf life

12 months

Storage conditions

When kept unopened in dry conditions at a temperature between +5 °C and +25 °C. Storage at higher temperatures and high humidity may reduce shelf life.
Technical Information

Water absorption

Water Absorption – low - <0.1 kg/(m2 · h0.5)

Permeability to water vapour

PARAGUARD does not create a vapour barrier and allows the building to breathe and assists in keeping the substrate dry from rain and
moisture. PARAGUARD allows moisture inside the building to escape into the atmosphere in a controlled way.

Application

Application Information

Curing time

Typical curing times at +20 °C
Touch dry: 1-2 Hours (Depending on the substrate and temperature)
Surface dry: 6 Hours (Depending on the substrate and temperature)
Overcoat: Wet on wet (30 mins)
Consumption

Consumption

This information is provided as guidance only, excludes wastage and will vary subject to the application and substrate. Due to surface density, some masonry and render substrates andother high absorption substrates may have higher consumption rates.

SUBSTRATE WATER REPELLENCY - Based upon a single coat application

  • Sandstone: 5 m2/L
  • Brickwork: 5 m2/L
  • Concrete: 5 m2/L
  • Concrete blocks: 3 m2/L
  • Reconstructed Stone: 3 m2/L
  • Granite: 15 m2/L
  • Marble: 13 m2/L
  • Terrazzo: 8 m2/L
  • Engineering bricks: 8 m2/L
  • Polished concrete: 8 m2/L
  • Render: 5 m2/L
Application steps

SUBSTRATE PREPARATION

  • All contact surfaces must be sound, clean and dry.
  • Remove all loose material, paint, plaster and oily deposits.
  • Subject to application, protect adjacent surfaces, plants, pathways, walls etc. from splashes. Remove all splashes immediately with clean water.
  • Apply at temperatures between +5 °C and +25 °C. Work in the shade and avoid applying to walls that have just received direct sunlight or are still warm as the PARAGUARD will dry too quickly before subsequent coats can be applied.

MIXING

Product is ready to use. However, if the product is stored for a long period of time, it may need to be stirred or shaken.

APPLICATION

Application for Water Repellency
Subject to substrate porosity, PARAGUARD is applied to the surface in two or more flood coats (the surface must become fully saturated with PARAGUARD), either by paint brush, lambswool roller or airless spray gun followed immediately by the use of a lambswool or paint brush, working the product well into the substrate, ensuring all areas are fully coated. Make sure that applications commence from the bottom of the work area and continue vertically up the substrate, brushing in any runs as you go with a suitable painter’s brush. Ensure a single elevation is completed in a single application otherwise uneven coverage may occur. Subsequent coats must be applied before the previous coating has dried i.e. wet on wet within 30 minutes of the first application. If substrate starts to dry quickly then there isn’t enough PARAGUARD present and more should be applied immediately. For surfaces that are located near the coast, situated in highly exposed locations or where the wind driven rain index ratings are ‘Severe’ or Very Severe’, always apply a third flood coat. Avoid streaking of the products and ensure you take note of the recommended preparation and important considerations.


Application for Pavements and Walkways
PARAGUARD is to be applied to the surface in 1 - 2 flood coats, depending on the porosity of the surface. Make sure that you work from one side to the other to ensure an even coverage is provided throughout. If the substrate starts to dry quickly then there isn’t enough PARAGUARD present and more should be applied immediately.

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