PROHESIVE MEGAPRO®
PROHESIVE MEGAPRO® is a fine brilliant white, polymer fortified, flexible, cement based adhesive, suitable for Tile and stone internal applications on both floor and wall substrates. PROHESIVE MEGAPRO® is suitable for light coloured or opaque stone due it its brilliant white colour.
- Fine, smooth trowelable adhesive
- S1, flexible performance
- Internal use
- Suitable for light and opaque stones (non moisture sensitive)
- Wall and floor use
- Suitable for use over Sika approved waterproof membranes
Usage
PROHESIVE MEGAPRO® is suitable for fixing tile and stone by thin bed application for internal applications only. SUITABLE TILE TYPES ARE;- Ceramic tiles
- Porcelain tiles
- Natural stone (non moisture sensitive stone)
- Manufactured stone (non moisture sensitive stone)
- Mosaics
- Concrete (concrete greater than 35 MPa compressive strength requires mechanical preparation)
- Compressed cement boards*
- Ceramic tile underlay / fibre cement boards*
- Existing tiles (used in conjunction with Prep N Prime)
- Masonry
- Sika approved waterproof membranes
- Cement mortar beds / screeds
- Gypsum plasterboard
Advantages
- Fine, smooth trowelable adhesive
- S1, flexible performance
- Internal use
- Suitable for light and opaque stones (non moisture sensitive)
- Wall and floor use
- Suitable for use over Sika approved waterproof membranes
Packaging
20 kg bags / 64 bags per pallet
Colour
Fine white powder
Product Details
Chemical Base
Cement, Polymer, lime stone & special additives
Shelf Life
12 months from date of manufacture.
Storage Conditions
Store off ground in cool dry conditions for maximum shelf life (high humidity with reduce shelf life).
Product Declaration
C1ES1 Class adhesive AS ISO 13007:2013
Tensile Adhesion Strength
| Initial Tensile | ≥1N/mm² |
| After water immersion | ≥0.5N/mm² |
| After heat ageing | ≥0.5N/mm² |
Transverse deformation
| S Class ≥ 2.5 mm < 5 mm | (AS ISO 13007.2:2010) |
Application
Slip Resistance
| T Class <0.5 mm | (AS ISO 13007.2:2010) |
Mixing Ratio
6.5 - 7 Litres of water per 20kg Bag
Ambient Air Temperature
+5°C Min / +35°C Max
Substrate Temperature
+5°C Min / +35° Max
Pot Life
3.5 hours at 23°C & 50% RH
Open Time
30 minutes at 23°C & 50% RH
Applied Product Ready for Use
| USE | WAIT TIME |
| Grouting on walls Grouting on floors | 8-10 hours 20 - 24 hours |
| Light foot traffic Full service | 20-24 hours 5-7 days |
Values determined at laboratory conditions: 23°C & 50% RH.
Higher temperatures will reduce times and lower temperatures with increase times.
Consumption
| Notched Trowel Size | Aproox Coverage per bag |
| 6 mm | 9.5 m² |
| 10 mm | 5.5 m² |
Consumption is dependant of surface profile, roughness, and application technique.
MIXING
Pour clean cool water into a mixing container and gradually pour the the PROHESIVE MEGAPRO® powder into the container and stir with a slow speed mixing drill (approx 500RPM). Mix for 2-3 minutes to a smooth lump free homogeneous consistency. Allow the product to stand (slake) for 5 minutes then restire for an additional minute. Do not add more water. Restirring the mixture may be required during the adhesives pot life.
APPLICATION
Tiles shall be fixed in accordance with AS3958.1-2007.
Ensure the backs of the tiles are clean and free from dust and contaminates.
Apply the adhesive to the substrate with the appropriate sized trowel to achieve coverage requirement on both substrate and the back of the tile. Tiles may require "back-buttering" to acheive minimum coverage requirements.
Apply the adhesive with the notched trowel in a single direction. While pressing the Tile into the wet adhesive, break the ridges with the tile to fully bed the tile into the adhesive.
It is advisable to periodically check the back of the tiles to ensure adequate adhesive coverage is acheived in accordance to the standard.
Only apply as much adhesive that can be covered by the tiles prior the the adhesive skinning. If skinning occurs prior to placement of tiles remove and replace.
Remove any excess adhesive from the face of the tiles with a damp sponge and ensure grout joints are clean and free from excess adhesive and uniform depth.
Movement, Expansion, and Control joints must be installed as per AS ISO 3958.1-2007.
For tile over tile applications use Eco Systems Prep n Prime. Ensure existing tiles are soundly fixed and free from defect. Gloss finished or polished tiles need mechanical preparation prior to priming with Eco Systems Prep n Prime.
CLEANING OF TOOLS
Tools and equipement can be cleaned with water while adhesive is still wet.