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BAL Supercover Rapid Flex 15Kg – Pallet Deals & Bulk Buy – High Yield, Flexible & Rapid-Setting Tile Adhesive For Walls & Floors

BAL

BAL Supercover Rapid Flex

Flexible High Yield Tile Adhesive For Walls & Floors

Rapid-setting, highly polymer-modified, water/frost-resistant cementitious tile adhesive for walls and floors. BAL ‘Go Greener’ range of environmentally responsible adhesives.

BAL Supercover Rapid Flex is a rapid-setting, highly flexible high yield tile adhesive for walls and floors,  providing further coverage per bag. Available in grey and white, BAL Supercover Rapid Flex is suitable for fixing ceramics, porcelain and vitrified tiles, mosaics, certain natural stones, terrazzo, rigid foam insulating materials and brick slips in dry or wet interior and exterior environments. Also recommended for large format wall tiles, areas of total immersion, installations with limited movement/vibration and heated screeds.

It provides outstanding benefits for the fixer, including a high yield for further coverage per bag, rapid-setting in only 3 hours for quick installations, and highly flexible nature for with difficult backgrounds which may be subject to total immersion, lateral movement or vibration. Typical coverage on a dry wall and mosaic trowel is 1m2 per kg, meaning you get more for your money and get the job done in double-quick time.

  • Most tile types including porcelain
  • Dry/Wet – Interior/Exterior
  • Swimming Pools/Total immersion areas
  • Showers

POT LIFE AT 20C: 45 Minutes

GROUT AFTER: 3 Hours

COLOUR: Grey & White

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BAL Supercover Rapid Flex extended information

Coverage:

DRY WALLWET WALLFLOOR
SIZE:15kg12.0m²9.6m²6.4m²

Use for

  • Fixing ceramics, porcelain and vitrified tiles, mosaics, certain natural stones, terrazzo, rigid foam insulating materials and brick slips in dry or wet interior and exterior environments.NOTE: Certain types of natural stone (i.e. limestone, marble, travertine and some granite) may be susceptible to water staining. In this case, use of a BAL RAPIDSET FLEXIBLE FIBRE WHITE or BAL STONE & TILE PTB WHITE.
  • Recommended for large format wall tiles, areas of total immersion in water e.g. swimming pools and showers.
  • Installations subject to limited movement and vibration.
  • Heated screeds.

Restrictions: NOT suitable for

Metal, painted, glass/metal tiles with water-sensitive coating on back, plywood walls and tiling to existing glazed tiles.

PRODUCT INFORMATION

Composition: Rapid-setting highly polymer-modified cement- based powder.
Colours: Grey & White.
Type/Classification: Exceeds BS EN 12004 C1FTS1 (grey) – Cementitious Adhesive with Normal Characteristics, Fast Setting, Reduced Slip and Deformable.
Pack sizes: 15kg
Key Features:

  • High yield adhesive for further coverage per bag.
  • BAL ‘Go Greener’ range of environmentally responsible adhesives.
  • Highly Flexible.

Grout after: 3 hours (at 20°C)

BAL Supercover Rapid Flex usage & service conditions

WallsFloor
InteriorExterior
DryWet
Worktops (1)Showers (a)(5)
Swimming Pools (b)Heated Screeds
(9)(11)
Hydrotherapy Pools (b)(1)Limited Movement / Vibration (11)

BAL Supercover Rapid Flex backgrounds & bases

Brick/Concrete (2)
Rendering
Lightweight Blockwork (2)(3)(4)
Cement:Sand Screed (11)
Plaster (3)(5)
Plasterboard (5)
Tile Backer/Fibre Cement Boards (9)
Unglazed Ceramic Tiles / Hard Natural Stone (11)
Timber Floors (10)
Overlaid Timber Floors – 15mm min. (5)(6)(11)
Vinyl Tiles/Sheets
Mastic Asphalt (7)
Anhydrite/Calcium Sulfate Screeds (8)(11)

USAGE: Bed Thickness / Time at 20°C

COVERAGE

AreaTrowelCoverage ^^
Dry WallMosaic1.m2/kg
Dry WallRound Notched0.8m2/kg
Wet WallThin Bed Solid Bed0.64m2/kg
Exteriors / FloorsThick Bed Solid Bed0.42m2/kg

^^ May vary dependent on nature and flatness of surface, and on trowel used.

SURFACE PREPARATION

General

Ensure surfaces to be tiled are flat, clean, dry, sound and free from contamination.

Surface regularity:

Surface Regularity is defined as the deviation in height of the surface of a flooring layer over short distances in a local area. In simpler terms, it is the ‘flatness’ or ‘measure of unevenness’ of the screeded surface.

ClassMAXIMUM PERMISSABLE DEVIATION FROM a 2M STRAIGHT EDGE (MM)APPLICATION
SR13mmRecommended for direct fixing of tiles and slabs with a tile adhesive
SR25mmFor tiles & slabs bedded in a cement: sand mortar or a suitable tile adhesive (see the manufacturer's recommendations)
SR310mmFor tiles & slabs bedded in a cement:sand semi-dry mix.

In shower areas: waterproof background with BAL TANK-IT,

BAL WATERPROOFING KIT FOR SHOWERS or BAL WP1 TANKING SYSTEM.

SUITABLE SURFACES include:

Asphalt (suitable grade e.g. flooring)

Must be of a suitable grade, be clean, in sound condition (without brittleness, softening. etc.) and have adequate cohesive strength, a natural float finish and laid on a firm rigid base.

Ensure that surface is sufficiently regular to suit bedding depths of adhesive.
Clean thoroughly to remove surface dirt using warm water and a suitable detergent. Remove all detergent residues with clean water.

Concrete; cement:sand screeds and rendering

Before tiling, ensure that the substrate is flat (SR1), free from efflorescence, laitance, dirt, polished concrete and other loose materials. Remove by the use of suitable mechanical methods (see BAL TECHNICAL DATA SHEET on BAL BOND SBR or BAL PRIME APD for priming information).

Allow the following minimum drying times:
– Concrete/concrete block walls/clay brickwork: 6 weeks – Cement:sand screed: 3 weeks*
– Cement:sand rendering: 2 weeks (3 weeks for swimming pools)

*If BAL Rapid-mat is used, this may be fixed when the screed is sufficiently strong enough to receive foot traffic

BAL QUICKSET CEMENT:

  • Sand screeds and rendering
  • Bonded screeds: 4 hours**
  • Unbonded/floating screeds: 48 hours – Rendering (bonded): 4 hours**

BAL BOND SBR SLURRY

**1 part sand to 1 part BAL QUICKSET CEMENT by weight, mixed with appropriate amount of BAL BOND SBR pre-diluted 1:1 with clean cold water to achieve desired consistency.

BAL QUICKSET RENDER: 2 hours

Overlaid timber floors (min. 15mm)

Ensure timber floor (i) is sufficiently rigid and stable to receive tiles; (ii) can carry the additional static and dynamic load without excessive deflection; and (ili) has adequate ventilation under the timber.

Overlay existing timber floor with e.g. a suitable water resistant grade e.g marine plywood, min. 15mm thick, screwed (not nailed) at 300mm centres. Seal timber surface on the underside and edges with undiluted BAL BOND SBR. Allow to dry.

Tongued and grooved floorboards with BAL RAPID-MAT

Ensure boards are flat (SR1) dry, rigid and securely fixed (screwed to joints at 300mm centres, including any cross- noggings, if necessary). Sand (abrade) surface and ensure any surface coatings removed, e.g. varnish, lacquers, etc. Before priming with 2 coats of (second coat applied at 90° to
the first):

  • BAL PRIME APD (undiluted) or
  • BAL BOND SBR (diluted 1:2 by volume with clean water)

Allow each coat of primer to dry.

If necessary the floor may require levelling using BAL LEVEL MAX and allow to dry before installing BAL RAPID-MAT. See BAL TECHNICAL DATA SHEET for further information on suitable surfaces and application.

Anhydrite/calcium sulfate and hemi-hydrate screed

Allow the screed to dry out in accordance with manufacturer’s instruction example: moisture content below 0.5% w/w or 75% RH (Relative Humidity). Mechanically remove top surface to remove weak/dusty surface layer(s) as per the screed manufacturer’s recommendations. Remove all dust and loose material e.g. by vacuum etc. before priming with 2 coats of (second coat applied at 900 to the first):

– BAL PRIME APD diluted 1:1 with clean water and second coat undiluted or
– BAL BOND SBR diluted 1:4 with clean water and second coat diluted 1:2 with clean water.

Allow each coat of primer to dry.
NOTE: For further information on other backgrounds and preparation, contact BAL TECHNICAL ADVISORY AND SPECIFICATION SERVICE.

Plaster (finish coat only)

Must be at least 4 weeks old before tiling. Ensure that the plaster is free from dust, laitance and friable material.
If plaster is shiny or polished, brush thoroughly with a stiff bristled brush.

The plaster must always be primed with 2 coats of (second coat applied at 900 to the first):

  • BAL PRIME APD (undiluted) or
  • BAL BOND SBR (diluted 1:2 by volume with clean water) Allow each coat of primer to dry.

Weight restrictions for tiling onto plaster i.e. a maximum weight of 20kg/m2.

Dense concrete/blockwork walling

Allow new block mortar to dry for minimum 6 weeks before rendering /plastering. If direct fixing tiles, wall must be smooth-faced sufficiently flat (SR1).

Lightweight blockwork/walling

Allow new block mortar to dry for minimum 6 weeks before rendering /plastering. If direct fixing tiles, wall must be smooth-faced and sufficiently flat (SR1) before priming with 2 coats of (second coat applied at 900 to the first):

  • BAL PRIME APD diluted 1:1 with clean water and second coat undiluted or
  • BAL BOND SBR diluted 1:4 with clean water and second coat diluted 1:2 with clean water.

Allow each coat of primer to dry.
NOTE: Only suitable for internal dry environments unless rendered.

Unglazed ceramic tiles, quarry tiles, terrazzo and natural stone

For wall ensure existing tiles/stone are soundly bonded to a stable background that is sufficiently strong enough to support the weight of the new tiling.
For floors ensure that the existing finish is firmly adhered to the base.
If areas are loose or hollow-sounding, remove and make good with BAL QUICKSET RENDER or 1:3 cement:sand mortar over a slurry bonding coat (1 part sand to 1 part cement by weight, mixed with appropriate amount of BAL BOND SBR pre-diluted 1:1 with clean cold water to achieve desired consistency).

Existing vinyl tiles

Ensure these are in good sound condition and securely bonded to their base.
Remove loose or damaged tiles/areas of sheet along with any loose or soft adhesive.

Fibre reinforced cement boards and lightweight tile backer boards

Install boards to BS 5385 – i.e. moisture-resistant boards screwed to seasoned timber or suitable proprietary framework at maximum 300mm centres vertically and horizontally or as per the board manufacturer’s recommendations. Ensure no fixings protrude.

Some boards may require priming, prior to tiling with a cementitiouis based tile adhesive. Use a suitable primer from the BAL range. Please refer to the relevant BAL Technical Data Sheets for further information.
IMPORTANT NOTE: Obtain manufacturer’s confirmation that boards are suitable for tiling and for relevant fixing instructions.

Plasterboard (If required)

Ensure boards are dry, securely fixed and rigid and suitable thickness used.
NOTE if the plasterboard are dot and dabbed at 300mm centres and around the perimeter, leave to dry before fixing tiles.

Weight restrictions for tiling onto plasterboard i.e. a maximum weight of 32kg/m2.

Undertile electrical heating systems

Can be used onto electrical undertile heating systems encased within an appropriate BAL leveller. Over suitable boards/exterior grade plywood overlays (minimum 15mm thickness) use BAL LEVEL MAX.

BAL LEVELLERTHICKNESSSETTING TIME
BAL LEVEL MAX3mm – 30mm3 hours
BAL ACRYBASEUp to 20mm3 – 4 hours

Remove any polishes, wax, grease etc. with a suitable proprietary cleaner.
NOTE: Cushioned types of flooring are not suitable and must be completely removed along with the adhesive residue prior to tiling.

Heated Screeds

Suitable for sand/cement screeds with water fed underfloor heating encased within.
NOTE: For further information on other backgrounds and preparation, contact BAL TECHNICAL ADVISORY AND SPECIFICATION SERVICE.

BAL RAPID-MAT

Uncoupling matting for fast track tiling onto problematic floors – Protecting floor tiling against reflective cracks, fractures and other damage caused by stresses and lateral movement in the substrate.

  • Suitable for most problematic floor substrates including timber floors, new screeds and floors with under-tile heating systems.
  • Suitable for most tile types including natural stone and mosaics.

See BAL TECHNICAL DATA SHEET for further information on suitable surfaces and application.

MIXING

Use a BAL MIXING BUCKET or other suitable bucket.

  1. Add approximately 2.5 parts powder to 1 part clean cold water by weight. (see table below)
  2. Mix until lump-free mortar achieved.
  3. Allow mixed adhesive to stand for 2 minutes before re- mixing for 30 seconds.
Product SizeUsageApprox., clean cold water required per size
15kgWall & Floor Tiling5.4 – 6.4 litres

APPLICATION/USAGE

Do NOT use in temperatures below 5°C or in damp conditions.

Trowel Recommendations

AreaTrowel
Internal Dry Wall Area (up to 300x300mm tiles)BAL ROUND NOTCHED
Internal Wet Wall Area (up to 300x300mm tiles)BAL THIN BED SOLID BED
External Walls and FloorsBAL THICK BED SOLID BED
Mosaics (up to 100x100mm tiles) including when used with BAL RAPID-MAT)BAL MOSAIC TROWEL

Fixing procedure

  1. Apply adhesive to wall or floor surface and comb to required bed thickness ensuring the ribs of adhesive all run in one direction. The adhesive may be applied in a bed thickness of 2 – 6mm or up to 12mm in limited, localised areas.
  2. If fixing large/heavily-patterned tiles, apply additional adhesive to tile reverse.
  3. For mosaics: using a rubber tile float, press mosaics into adhesive and beat into required position.
  4. For tiles: press tile firmly into the ribs of the adhesive and into position, with slight twisting/sliding action to ensure optimum adhesive contact.
  5. Fix mosaics/tiles before adhesive forms skin (typically over 20 minutes at 20°C, depending on surface porosity/atmospheric conditions). If skin has formed, remove adhesive and apply fresh layer. Discard any adhesive that has begun to set. Do not add further water.
  6. Occasionally lift a mosaic/tile to check adhesive contact area. When solid-bed fixing, leave no voids behind tiles. 5. Leave adequate joints between individual tiles. Install movement joints to BS 5385, Parts 1-5.
  7. Clean off surplus adhesive from tile face and between tile joints before the adhesive has dried.

Grouting

1. Wait minimum 3 hours (at 20°C) after tile fixing. Select a BAL cementitious or Epoxy grout such as BAL MICROMAX2 GROUT or BAL EASYPOXY AG GROUT.
If using paper-faced mosaics: Pre-grout sheet and remove surplus. Place in position and tap down to achieve full contact with adhesive. Ensure joints between sheets match joints between mosaic tesserae (i.e. staggered). Wet paper and carefully remove before adhesive fully hardens. Clean off surplus adhesive and grout from mosaic face. Finish grouting.

2. Fill movement joints with suitable sealant i.e. BAL MICROMAX SILICONE SEALANT. However, do NOT use on sensitive surfaces that could react to acetic acids released during cure. For intermediate movement joints, a more durable hard wearing material may be needed e.g. an Epoxy polysulphide sealant or a suitable pre-formed movement joint strip.
NOTE:
If completing a swimming pool, do NOT fill pool for at least 3 weeks after grouting (contact BAL TECHNICAL ADVISORY AND SPECIFICATION SERVICE for further advice).
If completing a shower, do NOT use shower for at least 2 weeks (as required by BS 5385: Part 4, clause 7.2.1).

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