MPM (Morgan Powdered Mastic) – interior wall tile adhesive-Technical Data Sheet.

* Cost Effective
* User Friendly
* Grout in 6 hours
Description

MPM (Morgan Powdered Mastic) is an interior wall tile adhesive with all the properties that you need of a mastic adhesive in one pack. MPM exceeds the requirements of the Australian Standard AS2358-1990, exhibiting high flexibility and high bond strength. MPM is a white cementitious, quick setting mastic designed to minimise the time between tiling and grouting an installation. MPM installations can usually be grouted after only 6 hours.
PRECAUTIONS

MPM is unsuitable for:

*
bonding moisture sensitive green marble;
*
bonding to MDF board or timber & wax impregnated wood – (Our technical advice – sheet with fibre cement boards).
*
bonding to substrates subject to constant water immersion such as swimming pools.

SUBSTRATE PREPARATION & EXPANSION JOINTS

All substrates to be tiled must be flat and true, free from oil, dirt, grease or any other contaminants. Very porous substrates should be primed with Plastinex (1 part Plastinex mixed with 4 parts water). Incorporate expansion joints in accordance with AS 3958.1 2007.

Concrete: New concrete must be allowed to cure for 6 weeks and should have a wood float finish. Use Floor Prep to acid etch an adhesive key into concrete finished with a steel float.

Cement Render: Render to be left with a wood float finish and allowed to cure for 7 days.

Fibre Cement Sheets: Fibre cement sheets must be primed with Plastinex (1 part Plastinex mixed with 4 parts water) and all joints must be taped with PVC duct tape and fixed according to the manufacturer’s instructions.

Plasterboard: Plasterboard must be fixed as per manufacturer’s instructions. Jointing compound must be primed with Plastinex (1 part Plastinex mixed with 4 parts water).

Painted Substrates: Oil based paints must be in good condition with all flaky paint removed. Surfaces must be washed with a commercial cleaner such as Sugar Soap. Acrylic based paint surfaces are to be treated in the same manner as oil based paint surfaces. PVA based paint surfaces must be scabbled to expose at least 80% of the original substrate. (Call us for free site specific technical advice)
MIXING & POT LIFE

Add MPM to clean water at a ratio of 20kg to 5 litres of water. Mix the adhesive to a smooth paste free from lumps by using a drill that has a speed lower than 300 rpm, or mix by hand. Slacken the adhesive and re-mix after 5 minutes. MPM has a pot life of approximately 1 hour at 23°C and 50% relative humidity.
OPEN TIME

MPM has an open time of approximately 15 minutes, which can be shortened to just a few minutes by the action of sun, wind, high temperatures or highly absorbent surfaces. Dampening or priming the substrate prior to tiling prolongs the open time of the adhesive. Tilers need to constantly check that the adhesive has not formed a surface skin and is still fresh to touch. Adhesive with a surface skin must be always removed and discarded.
APPLICATION, TOOLS AND ADJUSTABILITY TIME

Always install the tiles in accordance with AS 3958 1:1991 and ensure the backs of the tiles are free of dust. Spread MPM evenly across one square metre at a time with a 6mm notched trowel for walls and a 10mm notched trowel for large wall tiles. The choice of trowel should be governed by the depth of the knobs, grooves or ridges on the back of each tile and the evenness of the substrate. Lay the tiles with a fair pressure and at right angles to the adhesive notched pattern. The final bed of adhesive should be between 2mm and 4mm. Wall tiles should have a finished joint width of 2mm – 4mm. Tiles can be adjusted for approximately 10 minutes after laying.
COVERAGE

20kgs of MPM will cover approximately 14 square metres with a 6mm notched trowel for walls.
CURE TIME

MPM cures in approximately 24 hours at 23°C and 50% relative humidity. High density substrates or tiles and temperatures during installation below 10°C will significantly increase the cure time.
CLEAN UP

Remove excess MPM from the grout joints after 30 minutes and clean the tiles with a damp cloth or sponge. Tools and hands can be cleaned with water while the adhesive is still wet.
JOINT GROUTING

Depending on environmental conditions, commence grouting after approximately 6 hours. Use Regular or Superior Grout for grout joints between 3mm to 6mm. Use Aquapoxy, a three component anti-acid epoxy grout, if the joints are required to have a good chemical resistance. Grout Add may also be mixed with Regular Grout to impart extra flexibility, reduce porosity and increase water resistance.
JOINT GROUTING PRECAUTIONS

DO NOT use excessive amounts of water during mixing or initial cleaning as this will cause irregular colour finishes and also weaken the grout. DO NOT mix the grout with an electric drill above 300 RPM as this can entrap air into the mix causing grout to dry soft and powdery or with unsightly pin holes in the surface. All grouts should be Damp Cured for 48 hours. Refer to the Australian Standard AS 3958 Part 1 Section 5.7.3.
SHELF LIFE

Twelve months if stored in a dry & elevated position in the original factory sealed packaging.
PACKAGING

MPM is available in 20kg bags.
SPECIFICATION CLAUSE

The wall adhesive shall be Morgan MPM (Morgan Powdered Mastic) – a high performance tile adhesive complying with all relevant Australian & International technical standards.
MORGAN QUALITY POLICY STATEMENT

MPM is manufactured and distributed to a quality system based on ISO 9001:2000. MPM is guaranteed for 10 years when installed to the guidelines of AS 3958 Part 1 & 2 and in conjunction with written technical information supplied by Morgan Ceramic Tile Adhesives.

Guarantee

Morgan Ceramic Tile Adhesives

http://www.morganadhesives.com.au

11 Raymond Avenue
Bayswater 6053
Western Australia

Telephone +61 8 9272 4666
Facsimile +61 8 9370 1744

accounts@morganadhesives.com.au
info@morganadhesives.com.au