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Davco tile adhesives


Davco-Ultraflex – premium grade, thick or thin bed, fast setting, rubber modified, flexible,powdered

By  Last updated: 15th June 2012

ULTRAFLEX

DESCRIPTION
Ultraflex is a premium grade, thick or thin bed, fast
setting, rubber modified, flexible, powdered cement
based adhesive, specifically formulated to bond tiles onto
a variety of substrates.
USES
• Ultraflex can be used on both walls and floors, in
interior and exterior applications.
• Ultraflex can be used to fix tiles onto concrete, cement
renders/screeds, blockwork, rendered brickwork,
plasterboard, fibre cement sheeting, old ceramic tiles
(prepared as per instructions in the surface preparation
section) and particular waterproofing membranes.
• Ultraflex is suitable for tiling over timber floors,
provided that a fibre cement sheet tile underlay is
initially installed over the timber floor.
• Ultraflex is recommended for the thin or thick bed
fixing of all types of ceramic, mosaic, fully vitrified,
porcelain, terracotta, slate, quarry, granite and marble
tiles, with the exception of green marble.
• When using Ultraflex with translucent tiles the colour of
the adhesive must be considered.
FEATURES AND BENEFITS
• Flexible, cement based adhesive – just add water!
• Fast setting – cures in 6 – 8 hours
• Can be used over most building board surfaces
• Ideal for same day grouting
SURFACE PREPARATION
• All surfaces must be structurally sound, dry, clean and
free from movement, oil, grease, wax, curing
compounds and any other loose or contaminating
materials.
• All building boards must be flat and firmly fixed
according to the manufacturer’s instructions and
relevant Australian Standard(s).
• Painted surfaces must be scabbled/abraded to expose
at least 80% of the original substrate.
• Newly rendered/screeded surfaces must be allowed to
cure for at least 24 hours and have a wood float finish.
• Old rendered/screeded surfaces must be thoroughly
cleaned prior to tiling and have a wood float finish.
• New concrete must be allowed to cure for 1 week and
should have a wood float finish.
• Steel trowel finished concrete must be acid etched or
mechanically abraded prior to tiling.
• Old concrete surfaces must be thoroughly cleaned
prior to tiling.
• Make sure all release agents are removed from
concrete surfaces, especially on tilt-up slabs.
• Existing ceramic tiles can be tiled over with Ultraflex
after the use of Davco Ultrabond. Refer to Ultrabond’s
data sheet for further details.
• Porous/dusty surfaces must initially be primed using
Davco Ultraprime.
• Certain non-absorbent/contaminated surfaces can
easily be prepared for tiling via the use of Davco
Ultrabond. Refer to Ultrabond’s data sheet for further
details and suitability.
Movement joints should be provided as follows:
1. Over movement joints in the background.
2. At a junction between different background materials.
3. At fixtures interrupting the tile surface e.g. columns.
4. At internal vertical corners.
5. Around the perimeter of the tiling system.
6. At a maximum of 5 metre intervals in a grid pattern.
Note: Movement joints should go right through the tile
adhesive bed to the background and be kept free from
dirt and adhesive droppings. Movement joints must not
be less than 6mm nor greater than 10mm wide. All
movement joints that are 6mm wide can be filled with
Davco Sanitized® Colorcaulk. For wider applications use
Davco Davsil or polysulphide and polyurethane type
fillers.
MIXING
• Add Ultraflex to a bucket of clean water mixing
constantly until a thick creamy consistency is
achieved.
• The mixing ratio is 20kg of Ultraflex to approximately 6
litres of water.
• Allow the mixture to stand for 10 minutes, remix, then
use the adhesive.
APPLICATION
• Spread the adhesive onto the substrate using a 6mm x
6mm notched trowel for the installation of wall tiles up
to 150mm x 150mm.
• For the installation of floor tiles or wall tiles larger than
150mm x 150mm use a 10mm x 10mm to a 12mm x
12mm notched trowel.
• Tiles with lugs, grooves or an uneven back must
initially be butter coated with the adhesive, in addition
to the adhesive being trowelled onto the substrate.
• A 6mm x 6mm-notched trowel can be used to lay
mosaic tiles.
• For wall tiling a minimum final bed thickness of 2mm is
recommended, whilst for floor tiling a minimum final
bed thickness of 3mm is recommended.

• Do not spread more than 1m2 of adhesive at any one
time.
• Press tiles firmly into position before the adhesive
skins, ensuring that all the tiles are well bedded and
that no voids occur under the tiles.
• Occasionally, in order to ensure that full coverage is
being maintained, a tile should be removed, the
adhesive coverage noted and the tile be relaid
accordingly.
• Once the tiles have been laid, they must not be
disturbed or trafficked upon for 6 hours at 20oC.
GROUTING
• Grouting can be carried out 6-8 hours after the
completion of the tiling.
• Grouting can be carried out 24 hours after the
completion of tiling.
• Use the Davco grout that best suits the tiling
installation. Refer to the Davco Adhesive and Grout
Selection Guide for further information.
• To enhance colour, increase water resistance and
flexibility of the grout, use Davco Grout Additive. This
is particularly recommended when grouting over timber
or fibre cement sheeted floors, to minimise the
likelihood of the grout cracking/powdering.
• Allow 24 hours after grouting before putting the area
into service.
PRECAUTIONS
• Do not apply Ultraflex in temperatures above 400C or
below 50C.
• Do not allow the adhesive to skin prior to laying the
tiles. If the adhesive skins, remove and dispose of it,
then re-apply fresh adhesive.
• Ultraflex is not suitable for fixing tiles directly onto
timber floors.
• Ultraflex is not suitable for the tiling of areas where
continual immersion occurs i.e. swimming pools, spas,
etc.
• For other uses or the use of Ultraflex over substrates/
situations not mentioned in these instructions, contact
your Davco Construction Materials state office
• Being cement based, Ultraflex is alkali in nature, which
can cause dermatitis. Thus, when using Ultraflex, it is
recommended that applicators wear PVC or similar
gloves and safety goggles.
• For a full MSDS on this product, contact your Davco
Construction Materials state office.
COVERAGE
A 20kg bag Ultraflex will cover approximately 12m2 using
a 6mm x 6mm-notched trowel.
CLEAN UP
• Remove any excess adhesive from the face of the tiles
with a damp cloth, while the adhesive is still wet.
• Clean tools and equipment with water before the
adhesive dries.
PACKAGING
Ultraflex is available in 20kg bags.
SHELF LIFE
Up to 12 months in unopened bags, stored in an
elevated, cool dry place.
TECHNICAL DATA
Properties:
Appearance: Off-White Powder
Bulk Density: ~1.4 kg/litre
Open Time at 200C: 10 minutes
Adjustment Time at 20oC: 15 minutes
Pot Life at 20oC: 90 minutes
Drying Time at 200C: 6 hours
DISCLAIMER
The use of this product is beyond the manufacturer’s control, and
liability is restricted to the replacement of material proven faulty. The
manufacturer is not responsible for any loss or damage arising from
incorrect usage. All workmanship must be carried out in accordance
with AS 3958.1 – 1991.
The information contained herein is to the best of our knowledge true
and accurate. No warranty is implied or given as to its completeness or
accuracy in describing the performance or suitability of the product for a
particular application. Users are asked to check that the literature in
their possession is the latest issue.

 

http://www.davco.com.au/images/product/Ultraflex%20MSDS%2004_10.pdf

http://www.davco.com.au/images/product/ULTRAFLEX%20DATASHEET%2020100528.pdf

 

 

Toll Free Technical Advice
1800 653 347
NEW SOUTH WALES – Head Office
67 Elizabeth Street
Wetherill Park NSW 2164
Tel:  (02) 9616 3000
Fax:  (02) 9725 5551    QUEENSLAND
6 Mackie Way
Brendale QLD 4500
Tel:  (07) 3205 5677
Fax:  (07) 3205 3443
VICTORIA
PO Box 4426 Dandenong Sth Business Centre
Dandenong VIC 3175
Tel:  (03) 8791 8300
Fax:  (03) 8791 8399     WESTERN AUSTRALIA
65 Challenge Boulevarde
Enterprise Park Wangara WA 6065
Tel:  (08) 9302 1466
Fax:  (08) 9302 1174
SOUTH AUSTRALIA
Unit C
Day Avenue
Ashford SA 5035
Tel:  (08) 8371 3511
Fax:  (08) 8371 3577

 

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