SikaCeram®-650 Joint

SikaCeram®-650 Joint follows the requirements of EN 13888 for class CG2.

Cement, polymers, fillers and additives.

12 months from date of production if stored properly in original sealed packaging.

Store in cool and dry conditions in unopened, undamaged and sealed ori-
ginal packaging at temperatures between +10 °C and +40 °C. Protect from direct sunlight, heat and moisture

0.4mm

26.5% cold, clean water by weight of powder (e.g. 1.325 L per 5 kg bag)

+5 °C min. / +45 °C max.

+5 °C min. / +40 °C max.

45 - 60 min (+25 °C)

(+25 °C)
Available time for cleaning residual 60 minutes with water and sponge
material

Foot traffic Min.                 24 hours

Fully serviceable Min.           7 days

The consumption of SikaCeram®-650 Joint is dependent upon the depth
and width of the tile joint being grouted. In general one 25 kg bag will yield
18litres of fresh mortar.

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 blast cleaning, in order to remove all
traces of any materials that could reduce the
product's adhesion on the substrate.
▪ For applications in hot climates / environments, or on
absorbent substrates, thoroughly pre-dampen the
surface immediately prior to the product application,
but avoid any ponding / standing water on the surface,
which must not be damp to touch and not with
a dark-matt / wet surface appearance i.e. it must be
saturated surface dry (SSD).

Pour the recommended amount of water into a suitable,
clean mixing container. Stir slowly, whilst
slowly adding the SikaCeram®-650 Joint powder to
the water and then mix thoroughly using a low
speed (<500 rpm.) drill mixer until the material is
fully homogen- eous and lump free.
▪ After mixing, leave the product to stand and ‘mature’
for a few minutes, then briefly stir again prior to application.
The finished mix has a very creamy consistency,
is uniformly coloured and it is easy to apply and
spread.
▪ For areas requiring only small quantities, these can
be mixed by hand, however please measure the water
 powder ratio carefully, as even small differences
in the mix ratio between batches can result in colour shade variations.
▪ Premature exposure to water or excess water in the
mix can result in white efflorescence on the grout
surface.
▪ In case of high-performances demanding applications,
such as heavy-traffic floors, replacement of
mixing water with SikaLatex® or SikaBond® DV is suggestible.
▪ Important notes: Do not add or allow any additional
water to be added into the SikaCeram®-650 Joint
dur- ing or after mixing. Also prevent water contact
with the freshly applied material during cleaning
operations, or from excess atmospheric humidity
and condensation or residual moisture in the
substrate etc. It is equally important to avoid wide
temperature fluctuations during application and
curing, as well as excessive draughts or forced
ventilation. This is- cause excess water, temperature
variations and excess ventilation, plus application on
very porous tiles or substrates leading to rapid water
absorption etc. can all result in colour shade
differences.

SikaCeram®-650 Joint is applied using a rubber blade or trowel using cross-hatch techniques, taking care to ensure the joints are filled uniformly across the whole width and along their full length.

• Using the same blade/trowel in a vertical position, remove the excess from the surface of the tiles.
• When the material starts to set, it is possible to be- gin the initial cleaning step, using a damp sponge. The remaining grout traces on the tile surfaces can easily be removed the next day by wiping with a clean, soft dry cloth. When SikaLatex® or SikaBond DV® has been used instead of water in the mix, this additional step should be done immediately after the initial cleaning with a damp sponge.
• Avoid application in direct sunlight and/or in excess- ive draughts or strong winds.

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