SikaCeram®-638 Colour Grout Super
Superior performance coloured cementitious floor and wall tile grout
SikaCeram®-638 Colour Grout Super is a cementitious coloured floor and wall tile grout for use in joints from 1–6 mm in width. Additives contained in the powder provide protection against water and contaminants while maintaining a colour stable, abrasion resistant and durable finish. Available in many colours.
- Floor and wall application
- Abrasion resistant
- High degree of hardness
- UV resistant
- Frost proof
- Easy to clean
- Easy to use, only water to be added
- Interior or exterior use
- Many colours available
Usage
Grouting the following tile types:- Ceramic tiles
- Earthenware tiles
- Vitrified and fully vitrified tiles
- Porcelain tiles
- Glass mosaic
- Marble and other natural stone tiles
Advantages
- Floor and wall application
- Abrasion resistant
- High degree of hardness
- UV resistant
- Frost proof
- Easy to clean
- Easy to use, only water to be added
- Interior or exterior use
- Many colours available
Packaging
1 kg pouch
Colour
Powder / White and Ivory
For more colour options, contact Sika representative.
IMPORTANT
The colours given in the shade cards are for indicative purpose only, the actual shades may vary slightly at site.
For colour matching: Apply colour sample and confirm selected colour under real lighting conditions.
IMPORTANT
Colour uniformity cannot be completely guaranteed from batch to batch. Mix the grouts with different batch numbers before adding water.
Product Details
Chemical base
Portland cement, selected quartz sand, water retainers, polymers and other special additives
Shelf life
12 months from date of production
Storage conditions
The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C.
Compressive strength
| ≥ 10 N/mm2 (28 days, +30 °C) | (ASTM C109) |
Flexural strength
| ≥ 2.5 N/mm2 (28 days, +30 °C) | (EN 12808-3) |
Shrinkage
| < 3 mm/m | (EN 12808-4) |
Water absorption
| After 30 minutes | ≤ 5 g |
| After 240 minutes | ≤ 10 g |
Application
Mixing ratio
Water : Powder = 0.31–0.35
310–350 mL of water for 1 kg pack of SikaCeram®-638 Colour Grout Super
Fresh mortar density
| ~1.9 kg/L (+27 °C) | (EN ISO 2811-1) |
Ambient air temperature
+5 °C min. / +35 °C max.
Substrate temperature
+5 °C min. / +35 °C max.
Pot life
~90 minutes (100 g mass, +25 °C)
Waiting time
| Before grouting on floor tiles laid with | Waiting time |
| Normal-setting adhesive | 24–36 hours |
| Fast-setting adhesive | 4–6 hours |
| Thick-bed (traditional) adhesive | 8–10 days |
| Before grouting on wall tiles laid with | Waiting time |
| Normal-setting adhesive | 4–6 hours |
| Fast-setting adhesive | 2 hours |
Above times are indicative. Always consult the appropriate tile adhesive Product Data Sheet.
Applied product ready for use
| Use | Waiting time |
| Pedestrian traffic | 24–36 hours |
| Full traffic | ~14 days |
| Water immersion | ~21 days |
Consumption
The consumption is dependent on the size of the tiles, joint width and depth.
Consumption guide: g/m2
| Tile size in cm | Joint width | |||
| 2 mm | 3 mm | 5 mm | 6 mm | |
| Glass mosaic 2 × 2 × 0.4 | 1500 | - | - | - |
| 5 × 5 × 0.4 | 450 | - | - | - |
| 10 × 10 × 0.6 | 450 | 500 | 840 | 1350 |
| 15 × 15 × 0.9 | 450 | 680 | 1140 | 1370 |
| 20 × 20 × 0.9 | 340 | 510 | 850 | 1030 |
| 30 × 30 × 1 | 250 | 380 | 630 | 760 |
| 30 × 60 × 1 | 190 | 280 | 470 | 570 |
| 50 × 50 × 1 | 150 | 230 | 380 | 450 |
| 60 × 120 × 1.1 | 100 | 160 | 260 | 310 |
These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
Theoretical consumption (g/m2) can be also calculated with the following formula: A × B × [(C + D)/(C × D)] × W
A = Tile width (mm)
B = Tile height (mm)
C = Tile length (cm)
D = Tile width (cm)
W = Wet density (kg/L)
EQUIPMENT
Mixing equipment
- Low speed electric single or double spiral paddle mixer (< 500 rpm)
Application equipment
- Grout spreader
- Squeegee
- Grouting float / trowel
- Sponge
- Soft cloth
- Grout finishing tool
SUBSTRATE QUALITY
- Check joints are dry, clean, and clear of excess adhesive, contaminants and tile joint spacers.
- Avoid any ponding / standing water on the surface.
- Surface must not be damp to touch.
SUBSTRATE PREPARATION
- Remove any obstructions from joint before grout application.
- For applications in hot climates / environments, or on absorbent substrates, thoroughly pre-dampen the surface immediately prior to product application.
MIXING
IMPORTANT
Avoid over-mixing to minimise air entrainment.
IMPORTANT
Do not add additional water into the mixed product after mixing.
IMPORTANT
Do not exceed the recommended amount of water in the mix. The mix must never be fluid.
- Pour the minimum recommended amount of clean cold water into a clean mixing container.
- Gradually add SikaCeram®-638 Colour Grout Super powder to the water while mixing.
- Mix thoroughly for ~3 minutes until a uniformly coloured, smooth mix is achieved. Add additional water, if necessary to the maximum specified amount.
- Do not mix for ~5 minutes to allow mixed product to ‘mature’.
- Remix for ~30 seconds.
APPLICATION
IMPORTANT
Check adhesive has fully set before grouting.
IMPORTANT
Protect freshly applied material from water.
- Apply SikaCeram®-638 Colour Grout Super using a grout spreader, squeegee or grouting float / trowel.
- Completely fill and compact the joints uniformly.
- If required, finish grout with a grout finishing tool while grout is wet.
- Using the same spreader / float, remove excess grout from the tile surfaces moving the tool diagonally across the joints.
- When the grout is touch dry, use a damp sponge or sponge float to clean the tile surfaces. Clean sponge regularly with clean water.
- When the grout has set hard enough in the joint (finger-nail hard), polish the tile surfaces by wiping with a clean, soft dry cloth.
Note: For high-performance and demanding applications, such as heavily trafficked floors, exposed facades, swimming pools or for additional flexibility, use SikaCeram®-688 Colour Grout Premium (Refer to the individual Product Data Sheet).
CLEANING OF TOOLS
Clean all tools and application equipment with water after use. Hardened material can only be removed mechanically.