Ardex F4 Fine Wall Tile Grout is a cement-based fine grouting compound for ceramic wall tiles and mosaics where the joint width does not exceed 4mm.
Ardex F4 is available in white or grey, and comes in 11kg bags.
The BS EN 13888 classification for Ardex F4 is CG2A, an “improved cementitious grout with additional characteristic of high abrasion resistance”. The powder is mixed with water to produce a soft, creamy and easily worked mortar with good filling properties, allowing joints to be completely filled in one operation.
The hardened Ardex F4 joint is smooth, weather resistant, unaffected by water and can be used for internal and external tiling in dry and wet conditions, including swimming pools with non-aggressive water conditions. NOTE: Where chemical spillages or corrosive liquids are likely to be in contact with the tile joints, use WA Epoxide Adhesive and Grout or EG8 PLUS Epoxide Adhesive and Grout.
Ardex F4 can be used with the addition of E101 mortar admix to produce tile joints that are water repellent with improved elasticity and when grouting porcelain tiles. Alternatively, FS Flexible Tile Grout for Narrow Joints should be considered.
This will depend upon the tile size, joint width and depth and the Grout Coverage Figure, which for Ardex F4 is 1.5. Use the following to estimate the approximate grout requirements for square or rectangular tiles:-
Stage (all measurements in mm).
1. ADD length and breadth of tile together.
2. MULTIPLY result by joint width.
3. MULTIPLY result by joint depth.
4. MULTIPLY result by Grout Coverage Figure (i.e. for Ardex F4, this is 1.5).
5. DIVIDE result by length of tile.
6. DIVIDE result by breadth of tile.
The result is the material requirement in kg per square metre.
Initial Set (Vicat) approx. 2½ hours
Final Set (Vicat) approx. 4 hours
Bulk density of powder approx. 1.2kg/litre
Density of fresh mortar approx. 1.9kg/litre