Aussietex II - What is it?

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Description:
Aussietex II is a two component flexible cementitious waterproof membrane ideal for use in internal wet areas. Aussietex II provides toughness and tensile strength through the employment of integral fibre reinforcement. Advanced acrylic polymers combined with cements and special fine fillers achieve an excellent flexible waterproof membrane barrier particularly suited for under tiles in internal locations.

Recommended For:
As a waterproof membrane for:

  • Terraces and balconies
  • Internal bathrooms, shower stalls and laundries
  • Commercial kitchens

Aussietex II is also suitable as a membrane below concrete, mortar and tiles:

  • Bridge decks
  • Wet rooms and kitchens
  • Waste water treatment plants
  • Drained planter boxes

Features and Benefits:

  • Waterproof
  • UV-resistant
  • Resistant to freezing and thawing
  • Recommended in all climates
  • Remains flexible even at very low temperatures
  • Good bond to concrete, wallboard, cement sheeting, masonry, plywood and particleboard
  • Easily applied by roller
  • Tough and durable
  • Good crack bridging capability
  • Non-toxic, water based
  • Excellent for internally tiled locations

Technical Data

  Part A Part B
Supply Form Colour Liquid Powder
Specific gravity(+20ºC) 1.04kg/L -
Physiological effect neutral same as cement
Toxicity non-toxic same as cement
Mix ration by weight 1 1.5
  Mixed Product  
Min. application temp. 5ºC  
Specific gravity mixed 1.4kg/L  
Colour of cured material Medium grey  

Performance Data (typical*):

Bonding Strength 1.65Mpa
Elongation at tear >100%
Crack bridging up to 1mm@ 20ºC

Application Directions:
Substrate preparation
The surface must be clean and sound, free of dust, loose particles, cement laitance, grease, rust, sawdust, paint and mortar droppings. All wall and flooring boards must be fixed as per manufacturer’s instructions. Drainage needs to be provided and locations of constant water exposure (e.g. shower stalls) and falls in the order of 15mm per 1m should be provided.

All connecting building parts of different materials, construction joints and cracks, wall and floor junctions, drainage outlets, door to sill on slider doors, internal and external corners, allow the Aussietex II to accommodate movement by filling the joint with polyurethane sealant before applying the Aussietex II.

Priming
Apply 1 coat of Hi-Tek WB to a clean substrate by roller or brush at 7 to 10m² per litre depending on substrate. Allow Hi-Tek WB to dry before application of Aussietex II. (Approximately 15 to 30 minutes depending on temperature and porosity of substrate).

Mixing
Leave part A (liquid) in mixing bucket and gradually add part B (powder) while using an electric drill/mixer equipped with a grout-mixing paddle. Mix for 5 minutes and until a homogeneous and lump free consistency is achieved. Allow to stand for 5 minutes, and then restir before use. Do not change mixing proportions nor add water.

Application
Aussietex II can be applied with roller, squeegee, brush or trowel. For large areas it may be sprayed using a suitable worm type mixer/pump. Apply at least 2 coats of Aussietex II with an average thickness of 1mm WFT each. Apply evenly to the surface achieving a continuous film allowing the first coat to dry before application of second coat. Ensure the system terminates correctly under flashings if being turned up and down into the floor wastes or drainage outlets. A one coat prestripe is recommended over cracks, wall floor intersections, down into drainage wastes etc as these locations are where movement is to be expected in service.

NB. Do not apply externally if rain is anticipated within 2 hours.

Estimating Data:
The consumption of Aussietex II depends on substrate smoothness and requirements, however as a guide:

Waterproofing 2litres/m²
Yield per kit is 18 litres

Coverage of mixed kit is 9m² based on 2 applications at 1mm WFT with cured thickness of 1.5mm to 1.6mm.

Hi-Tek WB (as a primer)
As a guide: 7-10m²/L

Curing:
Curing depends on the ambient temperature; however as a guide Aussietex II becomes firm touch dry after 2 hours curing at 23ºC. Full cure is achieved after approx. 7 days. In locations where the membrane is thick (e.g. corners) and/or applied over sealant curing will be slowed down.

Homogeneous hardening and waterproofing are only achieved when too rapid drying out is avoided. Protect fresh coats against exposure to strong wind and direct sunlight. Once dry, Aussietex II needs no additional after treatment and is ready for tiling over.

Cleaning:
Tools should be cleaned with water before the Aussietex II hardens.

Shelf Life:
When stored in the cool and dry. Aussietex II can be stored for 12 months in tightly closed original containers. Do not allow Part A to freeze. Once frozen, Part A becomes unusable.

Packaging:
Available in 40kg kit comprising:

Part A 20kg
Part B 20kg

Precautions:
Ausietex II is non-toxic, but as with other product containing Portland cement, it has an alkaline nature and thus can be irritating to skin and eyes. Wear dust masks, goggles and gloves when handling. Wash off splashes of material with clean water. If irritation persists, seek medical advice. For full safety and first aid instructions, refer to the product Material Safety Data Sheets.