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Powerflex Lite-fast setting, rubber based tile adhesive-Technical Data Sheet.

Powerflex Lite-fast setting, rubber based tile adhesive-Technical Data Sheet.

* High Flexibility
* Enhanced Handling Characteristics
* Grout in 6 hours

Powerflex Lite is an off white, cementitious one pack, flexible, fast setting, rubber based tile adhesive. When mixed with water, Powerflex Lite becomes a smooth creamy paste that has extraordinary trowelling characteristics. Powerflex Lite, when cured, exhibits water resistance, high bond strength & high flexibility. Powerflex Lite installations can usually be grouted after only 6 hours.
Powerflex Lite 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.


All surfaces to be tiled must be flat and true, free from oil, dirt, grease or any other contaminants. Very porous surfaces should be primed with Plastinex (1 part Plastinex mixed with 4 parts water). Incorporate expansion joints in accordance with AS 3958.1 1991.

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. Surface must be washed with a commercial cleaner such as Sugar Soap. Acrylic based paints to be treated in the same manner as oil based paints. PVA based paint surfaces must be scabbled to expose at least 80% of the original substrate. (Call us for free site specific technical advice)

Tilt Up Slabs: Silicon or diesel release agents must be thoroughly removed prior to tiling. Liaise with the manufacturer to identify the release agent and removal strategy. Gyprock sheeting or sandblasting is recommended.

Tile Over Tile: A light sanding is required. Tiles should be thoroughly cleaned with a commercial cleaner such as Sugar Soap.
Add Powerflex Lite 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. Powerflex Lite has a pot life of approximately 1 hour at 23°C and 50% relative humidity.

Powerflex Lite has an open time of approximately 30 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.

Always install the tiles in accordance with AS 3958 1:1991 and ensure the backs of the tiles are free of dust. Spread Powerflex Lite evenly across one square metre at a time with a 6mm notched trowel for walls and a 10mm notched trowel for floors. 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 and floor tiles should have a finished joint width of 3mm – 6mm. Tiles can be adjusted for approximately 10-15 minutes after laying.

20kgs of Powerflex Lite will cover approximately 12 square meters with a 6mm notched trowel for walls and approximately 10 square meters with a 10mm notched trowel for floors.

Powerflex Lite cures in approximately 6 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.

Remove excess Powerflex Lite from the grout joints after 10 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.

Depending on environmental conditions, commence grouting after approximately 6 hours. Use Regular or Superior Grout for grout joints between 3mm to 6mm. Morgan Slate & Quarry Grout should be used for joint sizes between 6 – 20mm. 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.

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.

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

Powerflex Lite is available in 20kg bags.

The wall & floor adhesive shall be Morgan Powerflex Lite – a high performance tile adhesive complying with all relevant Australian & International technical standards.

Powerflex Lite is manufactured and distributed to a quality system based on ISO 9001:2000. Powerflex Lite 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.


Morgan Ceramic Tile Adhesives
11 Raymond Avenue
Bayswater 6053
Western Australia

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


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