Thompson's Water Seal

Thompson's Water seal is a transparent, water based waterproofer that is designed to penetrate dry, porous, exterior substrates to prevent ingress of moisture.

New improved Thompson’s Water seal is a high performance transparent water repellant that penertrates exterior brickwork, wood and cementatious substrates to form a long lasting barrier against rain damage. Its formular contains a silicone micro-emulsion which prevents water penertration and subsequent problems caused by “freeze-thawing” which can break-up the substarte.

Thompsons Water seal has been reformulated to last longer than the standard waterproofers, continuing to repel water and help prevent water damage long after other products have begun to fail. Penetrating deep into the surface it repels more water for longer than standard clear waterproofers and can provide effective water repelancy for years, assuming application instructions and coverage guidlines are adhered to. It is long lasting, even under heavy moisture conditions, and is not destroyed by ultraviolet light.

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Thompson's Water Seal
Available sizes: 1L & 5L
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step1Preparation

Thompson's Water seal should only be applied to clean, dry surfaces that are sufficiently porous to allow full penetration of the product. Ensure that sufficient Thompson's Water seal is applied to mortar joints, in particular the junction between mortar and bricks or blocks. Thompson's Water seal should not be applied to recently sealed surfaces and any film forming coatings, for example, paint should be removed or allowed to weather for at least two years.

Any surface discoloration should be treated prior to the application of Thompson's Water seal or marks, stains or blemishes in the substrate will show through after treatment.

For more specific preparation methods read: Preparation of general substrates before using Thompson’s Water Seal and Preparation of special substrates before using Thompson’s Water Seal

step2Application

Thompson's Water seal may be applied by brush, roller, low pressure spray (under 200 psi) or poured on and allowed to settle naturally into the surface.

On horizontal surfaces, leave Thompson's Water seal for 15 minutes then redistribute any unabsorbed material to dry areas. When treating vertical surfaces start at the bottom and work upwards.

When spray application is used specific recommendations of equipment manufacturers or suppliers should always be observed.

In general, a two coat application is specified in all cases using the recommended coverage guidelines.

step3Drying

Thompson's Water seal normally dries within 24 - 48 hours. Drying time will vary with absorbency of substrate and prevailing weather conditions. on masonry the second coat may be applied as soon as the first coat has soaked into the surface. on other substrates allow at least 24 hours between coats.

Features & Benefits

 
  • Transparent
  • Low viscosity
  • High penetration
  • Water based

Perfect For

substrates of:

  • Brick
  • Concrete
  • Masonry
  • Slate
  • Wood 

Areas Of Use

Multi-surface waterproofer
Multi-surface waterproofer
Multi-surface waterproofer

Technical

Waterproofing Level

Apply: Brush, Roller, Dipping,
or Low Pressure Spray
Coverage: See below.
Apply: 2 Coats
Drying Time: 24 - 48 hours depending on substrate

Coverage

Coverage rate will vary with the absorbency of the substrate. The coverage guidelines given below are the minimum recommended quantities required to give adequate waterproofing protection based on practical experience. older substrates in particular may require additional applications of Thompson's Water seal to ensure full repellency. A site trial is recommended.

Surface First Application m²/litre Second Application m²/litre
Brick 3.5 7
Concrete 5 10
Light Concrete Block 1 2
Clay/ Quarry Tile 5 10
Rendering 5 7
Wood (varying on type & finish) 2.5 - 5 3.5 - 7.5
Weatherboard 2.5 3.5

 

Tips

  • Ensure that surface and air temperature are above 5°C.
  • Observe and follow all warnings and instructions for use shown on the pack.

Clean - Up

Cleaning is as easy as 1-2-3!

  • Clean all equipment promptly after use with mineral turpentine
  • Rinse in fresh water with a drop of detergent.
  • Please dispose of waste material responsibly.

Safety

  • Store out of reach of children.
  • Skin: wash the area well with running water.
  • Eyes: flush the eye with running water for several minutes, contact your doctor.
  • Breathing: use in a well ventilated area; when spraying, use a suitable respirator.
  • Swallowed: drink water, do not induce vomiting and contact your doctor or the Poison Information Centre on 13 11 26