Use
Weber.set Versa-flex is used for fixing ceramic-, porcelain-, dark marble-, granite-, stone-, clayand terrazzo tiles.
- Suitable for medium and thin bed floor applications 3 to 12mm
- Suitable for interior and exterior use
The 4 hour set makes it ideal for quick installations.
Not suitable for light coloured-, natural stone- or marble tiles.
Features & benefits
- Exceptional and consistent quality
- Extremely high strength
- 4 hour set
- Ensures a flexible adhesive bed and prevents shearing on critical surfaces
- Particularly suitable for the application of large tiles
- Can be used in conjunction with under-tile heating
Technical data
- Initial setting time: approximately 2 hours
- Final setting time: approximately 4 hours
- Correction time Glazed tiles: approximately 20 minutes
- Open time: approximately 15 minutes
- Pot life: approximately 1.5 hours
- Grouting time: approximately 6 hours
- Water demand: 5.2 to 6 litres per 20 kg
- Temperature resistance: 5oC to 30oC during application, frost resistant when set
- Application temperatures: Do not apply in temperatures below 5oC or above 30oC
Note : all the data given was obtained at a temperature of 20oC and 50% relative humidity
Coverage
Depending on the nature and evenness of the surface and method of application, approximately 4m2 per 20kg on floors when applied using a 10mm notched trowel.
Suitable surfaces
Tylon Versa-flex ensures a flexible bed on critical surfaces like :
- Screeds and concrete
- Existing ceramic tiles
- Primed fibre cement floors
- Primed timber floors
Note : not suitable for wall tiling
Surface preparation
The following minimum curing periods should be observed before tiling commences :
New concrete floors : 28 days
New screeds : 28 days
Ensure that all surfaces are clean, dry, sound and free from dust, grease or any contamination that could impair bonding.
Make good any unsound areas and remove flaky or peeling layers before tiling.
Organic growth must be removed and the spores killed using household bleach. PVA paint and gypsum plaster must be chipped to expose 80% of the substrate. Enamel paint and bitumen should be scraped and chipped to expose 80% of the substrate. Do not use a solvent or heat to remove bitumen from the surface. Existing ceramic tiles must be thoroughly cleaned using undiluted Tylon Tile Cleaner. Rinse using clean water.
Highly absorbent surfaces must be primed using a mix of 2 volumes of Tylon Plaskey and 1 volume Tylon Key-it. Apply to a thickness of approximately 2mm using a blockbrush. Leave to dry for 24 hours.
General
- Tiles should be installed providing for adequate movement joints. Movement and expansion joints to be provided for at approximately 3 metre centres externally or at 4 metre centres internally, in both directions or as per the engineer’s specifications.
- All expansion and movement joints in the substrate must extend through the adhesive bed and tiles.
- Use only dry tiles - do not soak tiles.
Mixing
- Combine a 20kg bag of Weber.set Versa-flex with 5.2 litres to 6 litres of clean water and stir until completely free of lumps. If less than the complete bag is used, the mix proportions are 2 parts by volume of powder to 1 part by volume of water.
- Allow the mixture to mature for 5 minutes and re-mix thoroughly. The consistency can be adjusted by adding a small amount of water.
Do not add too much water or attempt to extend the working time by adding more water as this will cause the adhesive to be weak with a tendency to crumble.
Do not mix more adhesive than can be applied within 90 minutes.
Application
Spread adhesive using a notched trowel to a minimum bedded thickness of 6mm. No back buttering is necessary for heavily lugged, grooved or dovetailed tiles before placing into wet adhesive. Do not spread more adhesive than can be laid in 10 minutes.
Press the tiles gently into wet adhesive with a twisting action. Use a rubber mallet to bed large or heavy tiles.
Occasionally lift a tile to check that full contact is being made between the tile and the adhesive. Minimum grouting joints for floors is 3mm. Do not butt joint tiles.
Excess adhesive can be removed with water when still fresh, but once hardened only mechanical removal is possible.
Grouting can take place after 6 hours. We recommend the use of Weber.grout Tile grout. For increased flexibility in the grout, replace water with Weber.ad Bond it.
Grouting
Ensure that the joints are free from tile adhesive and any other foreign matter. Allow 6 hours before grouting with Weber.grout Tile Grout.
Allow 48 hours for sealed or non-porous surfaces.
In wet or permanently wet conditions, replace the water in the mix with Weber.ad Bond-it.
Storage
When stored, unopened in a dry place at temperatures above 5oC, shelf life is 6 to 9 months from date of manufacture.
Safety instructions
Contains cement, which is alkaline when wet and can cause skin irritation. Use eye protection and gloves and avoid prolonged skin contact. Avoid inhalation of dust. Wash skin contamination away with warm soapy water. Remove splashes to the eyes by prolonged irrigation and consult a doctor. Do not ingest.
Guarantee
We agree that Weber products meet the product specifications and will be free from any defect. Any guarantee with regard to the performance of Weber products will be subject to the professional and practical application of Weber products in accordance with our instructions and specifications.
However, we have no influence over specific site conditions and therefore, if in doubt, the user should first carry out sufficient tests to ensure that the product is suitable. In special cases, obtain advice.
Should our product prove defective, we undertake to replace any defective material. This guarantee will fall away in the event of Weber products being contaminated by the addition of sand, cement or substance other than recommended by us.
Technical services
Weber has a team of experienced advisors available to provide technical support.
Technical helpline : 0860 27 28 29 or visit www.weber-tylon.co.za
Saint-Gobain Construction Products SA (Pty) Ltd
77 Ostend Road, Germiston South, Johannesburg Tel.: +27 11 345-5300 Fax: +27 11 345-5301 Sales : 0860 27 28 29 or visit www.weber-tylon.co.za
To the best of our knowledge and belief, this information is true and accurate. As the conditions of use and any labour involved are beyond our control, the end-user must satisfy himself by prior testing that the product is suitable for his specific application. Products are sold subject to our Standard Conditions of Sale.
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