SikaCeram®-707

• SikaCeram®-707 meets the requirements of EN 13888 for RG Class
• SikaCeram®-707 meets the requirements of EN 12004 for R2T Class
• SikaCeram®-707 meets the classification requirements of ANSI 118.3

Epoxy resin with fine fillers and pigments

12 months from date of production

Store in undamaged, original sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight, heat and moisture.

~1.6 kg/l (mixed, at 25 °C)

Excellent resistance to most aqueous systems including sewage, urine, salt water, dilute acids, oils and fats.

For further information, please contact Sika's sales representative.

-20 °C min. / +60 °C max.

Note: No simultaneous chemical and mechanical exposure

Part A (base) : Part B (hardener)= 4 : 1

Min. 2 mm

When using multiple units, one after the other, do not mix the following unit until the previous one has been used in order to avoid a reduction in handling time.

+10 °C min. / +40 °C max.

Beware of condensation.
Substrate temperature during application must be at least 3°C above dew point.

< 5 % pbw moisture content.
Test method: Sika®-Tramex meter, CM - measurement or Oven-dry-method. No rising moisture according to ASTM D4263 (Polyethylene-sheet).

Normally reactive resin products require at least 7 days curing at +25 °C to achieve the specified performance and service expectations. At lower temperatures the curing period will be extended.

Values determined in laboratory conditions: +23 °C ± 2 °C, R.H. 50 % ± 5 %. Higher temperatures will reduce the indicated waiting times, lower temperatures will increase the indicated waiting time.

As Tile Grout:

Consumption is dependent on the surface profile and roughness of the substrate as well as on the size of the tiles and the joints between them. As a general guide, the approximate consumption can be calculated by volume, where ~1,6 kg/m²/mm of mixed material is required.
Consumption of tile grout can be also calculated through the following formula:
((L1+ L2) x W x T x D ) / (L1 x L2) , where:
▪ L1 = Tile length (mm)
▪ L2 = Tile width (mm)
▪ W = Joint width (mm)
▪ T = Tile thickness (mm)
▪ D = Density of tile grout (kg/l)
Note: Final result will be in kg/m².

As Tile Adhesive:

Consumption and coverage depends on the surface profile and roughness of the substrate, size and reverse profile of the tiles and the placing technique (simple placing "floating" or back to back “buttering-floating”).
As a guide for simple placing technique:

For small sized tiles (side ≤ 30 cm), use small squared notch size trowel (4-6 mm) and progressively increas for medium tiles (side ≤ 45 cm, trowel 6-8 mm) or large tiles (side ≤ 60 cm, trowel 8-10 mm).

Note: All 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.

Substrates must be properly cured, structurally sound, clean, dry and free of all contaminants such as dust, dirt, oil, grease, cement laitance, efflorescence, previous coatings, or any other surface treatments or obstructions such as excess tile adhesive, tile joint spacers, etc.
Depending on the contaminants to be removed, perform adequate preparation techniques, such as jet washing or blastcleaning, in order to remove all traces of any materials that could reduce the product's adhesion on the substrate.
Joints should be cleaned at least to two thirds of the depth of the tile.

SikaCeram®-707 is a reactive product. This means that it sets through a chemical reaction between the two components A and B. It is therefore crucial to ensure that these components are thoroughly mixed with the correct mixing ratio.
Thouroughly mix the base (Part A). After mixing the base, pour all the hardener (Part B) into the container of the base (Comp. A) and mix with an electric low speed drill (~350 rpm.) mixer equipped with a suitable mixing spiral. Mix thoroughly for approx. 3 minutes, until the material is fully homogeneous and lump free. The finished mix has a very creamy consistency, is uniformly coloured and it is easy to apply and spread.

BEDDING:

Apply the mixed SikaCeram®-707 to the substrate using a suitably sized notch trowel i.e: 4 mm, 6 mm or 8 mm depending on the size and thickness of the tile. Solid bed fixing can be achieved by back buttering the tile with a thin layer of SikaCeram®-707 before fixing into the notched bed. Ensure that the size of the area can be tiled within the pot life of the SikaCeram®-707.

TILING:
Tiles should be pressed into place and properly aligned when bedded, ensure at least 80% of the tile back is in contact with the adhesive. A minimum tile joint width of 2 mm must be left for the grouting and 3 mm where thicker tiles are used.

GROUTING OF WALLS AND FLOORS:

The grouting of the tile joints can be carried out after 24 hours when the bedding has fully hardened.

Apply the mixed grout to the tile joints using a hard rubber float ensuring full compaction, avoid spreading the grout over the tiles (with the exception of Mosaics) as this will increase the cleaning time. Clean all excess surface grout from the tile by holding the rubber float at 90 degrees and diagonal to the tile joint and scrape away the excess. Allow the grout to firm in the tile joints which will be approximately 10-15 minutes for the SikaCeram®-707 (depending on the ambient temperature). First cleaning can be done with a sponge float or good quality firm sponge and warm water wiping in a circular motion to form the joint profile. A further cleaning can be given as soon as the grout is firm enough not to be washed out of the joint. Do not allow the resin harden on the tiles surface. When the joint is fully firm, clean off any surplus grout or haze with a sponge and warm water. In the case of floor tiling immediately restrict the area from foot traffic. To maintain the appearance of the new installation, cover and protect as soon as the grout has hardened.

WASHING OF GROUTED AREAS:

After approx. 5-10 minutes give first wash with warm water and hard epoxy sponge or pad, rubbing in a circular motion.

Then wash with a soft viscous sponge (e.g. PCI epoxy sponge soft), rinsing out sponge frequently.

For easier cleaning of the remaining haze (after approx. 15 minutes) customary citric acid (mixing ratio: 50 g citric acid for approx. 6 litres of water) can be added to the warm, clear wash water. When the joint grout has cured, remaining haze can also be removed with this wash water; major contamination can be cleaned with the special epoxy cleaner.

Clean all tools and application equipment with water immediately after use. Hardened / cured material can only be removed mechanically.