Description
Ardex WJ50 Wide Joint Grout – 20kg
Ardex WJ50 Wide Joint Grout is a sanded, cement-based grout for internal or external wall and floor tiling. It is ideal for use in joints from 2mm up to 50mm wide without shrinking. A special additive is included to combat efflorescence and achieve superior colour consistency. Ardex WJ50 Wide Joint Grout is exceptionally easy to use, available in a range of colours and is suitable for both commercial and domestic applications.
TILE TYPES
Ardex WJ50 Wide Joint Grout is suitable for use with Ceramic tiles, terrazzo, slate, quarry tiles and natural stones (excluding dimensionally unstable or moisture sensitive).
LOCATION
• Internal, External
(Swimming pools and timber floors use with undiluted ARDEX Grout Booster)
SURFACES
• Floors, Walls COLOURS
• See ARDEX Website for Colour Selection
COVERAGE
• See ARDEX Website for Coverage Chart
PACKAGING
• 5kg and 20kg
ARDEX WJ50 QUICK FACTS
• Improved colour consistency – special additive to combat efflorescence
• Excellent workability – easy to apply and clean off
• Non-shrink – ideal for use in joints from 2mm up to 50mm with cobble stones without shrinkage
DRYING TIME
Ardex WJ50 Wide Joint Grout requires approximately 24 hours at 23°C and 50% relative humidity for substantive drying. Grout joints can be sealed once fully dried, usually after 24 hours. Allow longer for dense tiles, lower temperatures or high relative humidity.
PACKAGING
Ardex WJ50 Wide Joint Grout is packed in poly bags and polylined paper sacks – net weight 5kg and 20kg.
SHELF LIFE
Ardex WJ50 Wide Joint Grout has a shelf life of not less than 12 months for 20kg and not less than 24 months
for 5kg when stored in the original unopened packaging, in a dry place at 23ºC and 50% relative humidity.
PAY ATTENTION TO THE FOLLOWING:
Do not use Ardex WJ50 for chemical resistant joints, use Ardex epoxy grouts.
For pourous tiles a minimum joint width of 5mm is recommended.
Ardex WJ50 has special additives to reduce efflorescence, this may still occur at low temperatures and wet conditions, especially in external applications. The effect, whilst more noticeable in dark coloured grouts, is also evident in the discolouration of lighter grouts. Keeping the amount of water used in the mixing and clean up of grouts to a minimum will reduce initial efflorescence.
Ardex does not guarantee against shade variations and efflorescence caused by factors beyond its control, including nature of cement, job site conditions, finishing techniques and uneven drying conditions.
Porous face tiles e.g. terracotta, should be sealed prior to grouting to prevent staining.
In swimming pool applications, colours may bleach over a period of time. Use Ardex WJ 50 Off White mixed with undiluted Ardex Grout Booster. The chemical balance of swimming pools must be maintained, full cure and ready for chemicals after 14 days. For public pools or spas Ardex epoxy grouts are recommended.
Some polished or stone surfaces may be prone to scratching, always conduct a trial application prior to use.
For expansion or movement joints, use Ardex silicone sealant.
SAFETY PRECAUTIONS
This product is considered non dangerous in normal usage.
The presence of cement in the product gives an alkaline mortar which may cause some irritation if prolonged contact with skin takes place.
Avoid contact with skin and eyes; in case of contact with the eyes, rinse immediately with plenty of water and seek medical advice; wear suitable gloves and eye protection.
KEEP OUT OF THE REACH OF CHILDREN
Avoid generation of airborne dust during mixing.
If swallowed do not induce vomiting, give a glass of water and contact a doctor.
For further material safety data, consult the latest Material Safety Data Sheet.
COVERAGE
Coverage will vary according to tile size, joint width and depth, as well as the method of application and on site conditions. Allow an additional 15 – 20% for wastage..
TECHNICAL DATA
Colours: Off White, Mid Grey, Light Grey, Charcoal, Sand Beige, Neutral
Mixing Ratio: Approx 3.6L water per 20kg powder
Application Properties
(at 23ºC and 50% RH)
Pot Life: 1 hour
Drying Time: Approx. 24 hours
Underfloor Heating: Yes
