Ardex Flex FS – Flexible Standard Set Tile Grout for Narrow Joints

Key Features:

• Streak-free, uniform finish – Professional results with every application
• Water repellent & dirt resistant – Designed for wet and hygienic environments
• Underwater ready – Ideal for use in swimming pools and submerged areas
• Flexible and durable – Suitable for underfloor heating and a wide range of substrates
• Joint widths up to 4mm – Suitable for fine grout lines
• Use on almost all tile types – Including non-moisture sensitive natural stone
• Internal & external applications – Trusted performance indoors and out

Suitable for External Use or Wet Areas
Yes, including swimming pools

Suitable for Use with Under Tile Heating
Yes

Joint Width
Up to 4mm

Pot Life
2 ½ hours

Walkable After
5 hours

Product Type: Adhesives
Colour:
Dimensions: 10kg
Finish: Matte
Suitability: Pool Lining, Bathroom, Kitchen, Walls
Country of Origin: United Kingdom
Weight (Kg): 10kg

USE
ARDEX-FLEX FS is suitable for grouting joints up to 4mm wide, between porcelain, ceramic, non-moisture sensitive natural stone and quarry tiles, as well as extruded tiles and glass blockwork. The hardened grout is weather resistant, unaffected by water, and can be used for internal and external tiling in dry and wet locations, including swimming pools with non-aggressive water conditions. ARDEX-FLEX FS can be applied to both wall and floor tile joints and can receive foot traffic after 5 hours at 20°C.

PREPARATION
Ensure the tiles are firmly fixed and the tile joints are clean, free of dust, excess adhesive or bedding mortar, etc.

MIX PROPORTIONS
Mix proportions by volume are approximately 1 part water to 2¾ parts ARDEX-FLEX FS powder.

• A 10kg bag requires approximately 3 litres of water
• A 5kg bag requires approximately 1.5 litres of water
• A 2.5kg bag requires approximately 0.75 litres of water

MIXING
Add the ARDEX-FLEX FS powder to the required amount of clean water in a clean container, stirring thoroughly until a creamy, easily worked mortar is obtained. Allow the mixed grout to stand for at least 2 minutes before use to achieve the correct consistency. The grout has a working time of approximately 2½ hours at 20°C and will be walkable after about 5 hours. Higher temperatures will shorten working time; lower temperatures will extend it.

APPLICATION
Using a rubber squeegee or rubber-backed trowel, work the grout thoroughly into the joints, ensuring they are completely filled. Remove excess grout as work proceeds. Any residues left on the tile face can be wiped off with a damp sponge, up to 30 minutes after application.

If more than 30 minutes pass before cleaning, a fine mist from a spray bottle can help emulsify grout residues. Once the grout has hardened in the joints, any remaining dry film on the tile surface can be polished off with a dry cloth. Apply only when temperatures are above 5°C

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