Description
SAS Tradies Choice Mastic Adhesive – 20kg Bag
SAS Tradies Choice Mastic Adhesive is a white, polymer modified, cement-based tile adhesive designed for internal and external applications.
SAS Tradies Choice Mastic Adhesive can be used for ceramic, porcelain and vitrified tiles.
CLASSIFICATION
C2 Improved Adhesion
S1 Flexible
T Non Slump
E Extended Open Time
SUBSTRATES
Concrete Render
Rendered Brickwork
Plaster Board
Fibre-cement
SAS-approved wareproofing membranes
SURFACE PREPARATION
The surface must be clean, dry, firm and free of dust, oil, grease, wax and curing compounds.
The substrate must be installed according to the relevant standards and manufacturer recommendations.
All porous surfaces must be primed with SAS Master Primer.
For non-porous surfaces such as existing tiles, adhesives must be primed using SAS Master Primer neat.
Please contact SAS Technical Team for further information.
MIXING
Mix 5.5 to 6 litres of water to 20kg of SAS Tradies Choice Mastic Adhesive.
Mix with a mixing paddle until a creamy consistency is achieved, and the powder is free of lumps.
Allow the mixture to stand for 3 minutes, remix, then use the adhesive.
FIXING
Tiles should be fixed in accordance with Australian Standard AS 3958.
Apply the adhesive using a notched trowel.
For tiles up to 300mm x 300mm use a 10mm notch and for greater than 400 x 400mm use a 12mm notch and butter the back of each tile. Apply only up to 1m2 at a time. Press the tiles firmly into the adhesive before it skins.
Do not spot fix and remove all excess adhesive from the tile surface before it sets. For information that is not listed please contact the SAS Technical Team.
MOVEMENT JOINTS
Movement Joints must be installed in accordance with Australian Standard AS 3958.
DRYING TIME
Allow the adhesive to dry for at least 24 hours at 20ºC.
Note:Do not tile at temperatures above 40ºC or below 5ºC.
GROUTING
Grouting can commence 24 hours after tiling is completed (refer Drying Time above) using SAS approved range of grouts.
COVERAGE
A 20kg bag of SAS Tradies Choice Mastic Adhesive will cover approximately:
7m2 using a 10mm notched trowel
6m2 using a 12mm notched trowel
PACKAGING
20kg Bags
APPLICATION
• Tiles should be fixed in accordance with the Australian Standards AS3958.1-2007.
• Ensure the back of each tile is clean free form dust and other contaminants.
• Apply the adhesive onto the substrate but do not exceed more than 1m2 at a time.
• When back buttering is required use the straight side of the trowel and apply a thin coating of adhesive onto the tile.
• When laying the tiles make sure you move the tile forward and back 90 degrees across the direction of the beads of adhesive leaving no voids under the tile. It is important to lift a tile every now and then to check that sufficient coverage is achieved 90-100%.
• All adhesive residue must be removed from the tile and joint while the adhesive is still wet.
• After the tile adhesive is completely cured grouting can begin using Tradies choice range of grouts.
• For all other applications not mentioned please contact the SAS Technical team.
• Note: Protect tiling from other trades and weather. Do not allow traffic until all the tiling and grouting is completed.
PRECAUTIONS
• SAS Tradies Choice Mastic Adhesive CAN NOT be used for tiling over tongue and grooved timber flooring or particle board flooring.
• SAS Tradies Choice Mastic Adhesive CAN NOT be used for tiling over solvent based waterproofing membranes.
• SAS Tradies Choice Mastic Adhesive can be used for tiling in immersed situations such as swimming pools spas etc. as long as it is mixed with SAS Tradies Choice Master Additive.
• Do NOT use for tiling over existing tiles in immersed situations such as swimming pools and spas etc.
• SAS Tradies Mastic Adhesive CAN NOT be used when fixing moisture sensitive tiles or stone.
• When tiling externally that is above 2.7m high please contact the SAS Technical team for further information.
TECHNICAL DATA
• Open Time – 30 min at 23ºC
• Appearance – White powder
• Slump – No
• Time before grouting – 24 hours
• Return to service dry – 24 hours
• Return to wet service – 2 days
