PREPARING SUBSTRATES FOR TILING
The following information
has been put together to assist you in preparation of the substrate (surface on
which tiles are being fixed). For choice
of adhesive, grout or levellers refer to “Tile to Substrate” guide or product
information that you will find within this website. If you have any doubts regarding your choice
of product please call our 24hr Helpline 01257 269243, we will be happy to
assist you.
The information contained on
this website is given voluntarily and in good faith. It is to the best of our knowledge true and
accurate, however it may contain information which is inappropriate under
certain conditions of use. The company
cannot accept responsibility for any loss or damage due to inappropriate use, or
the possibility of variations of working conditions and of workmanship outside
our control.
CONCRETE/SCREED:
NEW CONCRETE MUST BE ALLOWED TO DRY FOR A MINIMUM OF 4 WEEKS. MAKE SURE SURFACE IS FREE OF LOOSE DIRT AND
DUST. IF YOU WISH PRIME WITH FLEXMASTER
4 PARTS WATER TO 1 PART FLEXMASTER. PRIMING
WILL INCREASE SET TIME OF THE ADHESIVE SLIGHTLY.
ASPHALT:
MAKE SURE SURFACE IS FREE OF LOOSE DIRT AND DUST. YOU MUST PRIME WITH 3 PARTS WATER TO 1 PART
FLEXMASTER. SETTING TIME OF THE ADHESIVE
WILL INCREASE BY APPROXIMATELY 50%.
CERAMIC TILES:
SCORE THE SURFACE OF THE TILE TO PROVIDE A KEY. REMOVE LOOSE DIRT AND DUST. BOND SURFACE WITH 3 PARTS WATER TO 1 PART
FLEXMASTER.
THE SET TIME OF THE ADHESIVE WILL INCREASE BY APPROXIMATELY
50%.
PLASTER/PLASTERBOARD:
NEW PLASTER MUST BE ALLOWED TO DRY FOR A MINIMUM OF 4 WEEKS. MAKE SURE SURFACE IS FREE OF LOOSE DIRT OR
DUST. PRIME SURFACE WITH 4 PARTS WATER
TO 1 PART FLEXMASTER. WE RECOMMEND USING
A STANDARD SETTING ADHESIVE AS IT WILL ALLOW MORE WORKABLE TIME. IF YOUR CHOICE OF COLOUR FOR GROUTING IS A
LIGHT COLOUR USE A WHITE COLOURED ADHESIVE. THIS WILL ELIMINATE ADHESIVE
SHADOWING THROUGH THE GROUT. IF TILING
ONTO PLASTERBOARD IT IS ESSENTIAL THAT THE BOARD IS FIXED VERY FIRMLY. IF THE BOARD IS FIXED TO A TIMBER FRAME YOU
MUST ALLOW FOR SLIGHT MOVEMENT. WE
ADVISE YOU TO FIX TILES WITH A STANDARD SETTING ADHESIVE MIXED WITH 2 PARTS
WATER TO 1 PART FLEXMASTER.
CHIPBOARD:
MUST BE SCREWED (NOT NAILED) TO SUBSTRATE AT 6 INCH CENTRES. ENSURE THERE IS ENOUGH VENTILATION BENEATH
SUBSTRATE AND THAT THE CHIPBOARD HAS BEEN FITTED COMPETENTLY AND WILL TAKE THE
WEIGHT OF TILES AND ADHESIVE. MAKE SURE
SURFACE IS FREE OF LOOSE DIRT OR DUST. PRIME
WITH 3 PARTS WATER TO 1 PART FLEXMASTER.
THE SET TIME OF THE ADHESIVE WILL INCREASE BY 50%.
UNDERFLOOR HEATING:
IF TILING ONTO EXISTING UNDERFLOOR HEATING YOU MUST SWITCH
HEATING OFF 1 WEEK PRIOR TO TILING TO ALLOW SUBSTRATE TO COOL SUFFICIENTLY. WHEN TILING HAS BEEN COMPLETED ALLOW 1 WEEK
FOR FULL CURE OF ADHESIVE BEFORE SWITCHING HEATING ON. START WITH A LOW TEMPERATURE, GRADUALLY
INCREASING TEMPERATURE OVER 2 WEEKS.
PLYWOOD:
PLYWOOD MUST BE 12mm EXTERIOR GRADE, SCREWED (NOT NAILED) TO
SUBSTRATE AT 6 INCH CENTRES. ENSURE
THERE IS SUFFICIENT VENTILATION BENEATH SUBSTRATE AND THAT SUBSTRATE WILL TAKE
THE WEIGHT OF TILES AND ADHESIVE. MAKE
SURE SURFACE IS FREE OF LOOSE DIRT AND DUST.
PRIME WITH 3 PARTS WATER TO 1 PART FLEXMASTER. THE SET TIME OF THE ADHESIVE WILL INCREASE BY
50%.
T/G BOARDING AND FLOORBOARDS:
MAKE SURE SURFACE IS FREE OF LOOSE DIRT AND DUST. PRIME SURFACE WITH 3 PARTS WATER TO 1 PART
FLEXMASTER. THE SET TIME OF THE ADHESIVE
WILL INCREASE BY 50%.
BRICK/BLOCK:
ENSURE SURFACE IS FREE OF LOOSE DIRT AND DUST. PRIME WITH FLEXMASTER 3 PARTS WATER TO 1 PART
FLEXMASTER. THE SET TIME OF THE ADHESIVE
WILL INCREASE BY 50%.
METAL:
SCORE THE SURFACE TO PROVIDE A KEY. REMOVE GREASE, LOOSE PAINT, DIRT AND DUST. PRIME WITH 3 PARTS WATER TO 1 PART
FLEXMASTER. SET TIME OF ADHESIVE WILL
INCREASE BY 100%.
HELPLINE: 24HRS 01257 269243 TILEMASTER:Strength
Inxess
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