weber.setUltra-flex 24 WB17 

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weber.set Ultra-flex 24 is a flexible, extremely high strength, cement-based tile adhesive for wall and floor applications.

Produced from carefully selected raw materials for consistency of product, it only requires the addition of water on site.



Use

Tylon Ultra-flex 24 is used for fixing porcelain-, dark marble-, granite-, mosaic-, ceramic, stone-, brick- and clay tiles.

  • Suitable for walls and floors
  • Suitable for interior and exterior use

It is most suitable for levelling and repairing surfaces with depressions up to 8mm before applying tiles.


Features & benefits

  • Exceptional and consistent quality
  • 24 hour set
  • Suitable for areas that will be dry or intermittently wet
  • Suitable for levelling and repairing surfaces with depressions up to 8mm before applying tiles
  • Can be used in conjunction with under tile heating.

Technical data

  • Initial setting time: approximately 24 hours
  • Final setting time: approximately 48 hours
  • Correction time: approximately 30 minutes
  • Open time: approximately 15 minutes
  • Pot life: approximately 2 hours
  • Grouting time: approximately 24 hours
  • Water demand: 5 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

6m2 per 20kg bag on walls when applied using a 6mm notched trowel 4m2 per 20kg bag on floors when applied using a 10mm notched trowel


Suitable surfaces

Tylon Ultra-flex 24 ensures a flexible bed on critical surfaces like :
• Pre-cast concrete
• Post tensioned floors
• Heated screed
• Tile on tile applications
• Power-floated floors


Surface preparation

The following minimum curing periods should be observed before tiling commences :

  • New concrete floors : 28 days
  • New screeds : 28 days
  • New brick walls : 28 days
  • New plastered walls : 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 Ultra-flex 24 with 5 litres of clean water and stir until completely free of lumps. If less than the complete bag is used, the mix proportions are 5 parts by volume of powder to 2 parts 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 45 minutes.


Application

Spread adhesive using a notched trowel to a minimum bedded thickness of 3mm on walls and 6mm on floors.

Heavily lugged, grooved or dove-tailed tiles must be back-buttered to fill any voids with adhesive before placing into wet adhesive.

Press tiles firmly 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. Do not butt joint tiles.

Clean excess adhesive off the surface once tiles are firmly set using a damp sponge. Once the adhesive has hardened, only mechanical removal is possible. Minimum grouting joints for walls is 2mm and 3mm for floors.

Adhesive must be allowed to dry for 24 hours before grouting commences.


Grouting

Ensure that the joints are free from tile adhesive and any other foreign matter.
Allow 24 hours before grouting with Tylon Tile Grout. Allow 48 hours for sealed or non-porous surfaces.
In wet or permanently wet conditions, replace the water in the mix with Tylon 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.