Product Data Sheet Show all documents

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
Product Data Sheet Show all documents

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

Product Information

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.
Technical Information

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

Application Information

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 traffic24–36 hours
Full traffic~14 days
Water immersion~21 days
Consumption

Consumption

The consumption is dependent on the size of the tiles, joint width and depth.

Consumption guide: g/m2

Tile size in cmJoint width

2 mm3 mm5 mm6 mm
Glass mosaic 2 × 2 × 0.41500

-

-

-

5 × 5 × 0.4450

-

-

-

10 × 10 × 0.64505008401350
15 × 15 × 0.945068011401370
20 × 20 × 0.93405108501030
30 × 30 × 1250380630760
30 × 60 × 1190280470570
50 × 50 × 1150230380450
60 × 120 × 1.1100160260310

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)
Application steps

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.

  

  1. Pour the minimum recommended amount of clean cold water into a clean mixing container.
  2. Gradually add SikaCeram®-638 Colour Grout Super powder to the water while mixing.
  3. Mix thoroughly for ~3 minutes until a uniformly coloured, smooth mix is achieved. Add additional water, if necessary to the maximum specified amount.
  4. Do not mix for ~5 minutes to allow mixed product to ‘mature’.
  5. Remix for ~30 seconds.

APPLICATION

IMPORTANT

Check adhesive has fully set before grouting.

IMPORTANT

Protect freshly applied material from water.

  

  1. Apply SikaCeram®-638 Colour Grout Super using a grout spreader, squeegee or grouting float / trowel.
  2. Completely fill and compact the joints uniformly.
  3. If required, finish grout with a grout finishing tool while grout is wet.
  4. Using the same spreader / float, remove excess grout from the tile surfaces moving the tool diagonally across the joints.
  5. When the grout is touch dry, use a damp sponge or sponge float to clean the tile surfaces. Clean sponge regularly with clean water.
  6. 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.

 

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