Description
Mapei Keracolor GG Large Grain Grout
– 20kg Bag
High performance, polymer-modified, cement-based grout for joints from 4 to 15 mm
Classification in Compliance with EN13888
Keracolor GG is an improved (2) cementitious (C) grout (G), with reduced water
absorption (W) and high abrasion resistance (A), classified as CG2WA.
Where to Use
Grouting interior and exterior floors and walls in all types of ceramic tiles
(single fired, double fired, klinker, porcelain tiles, etc.), terracotta, facebrick
and stone material (natural stone, marble, granite, agglomerates, etc.).
Application Examples
- Grouting façades, balconies, terraces and swimming pools.
- Grouting floors with a rustic finish (terracotta, enamelled porcelain,
antiqued marble, klinker, single red tiles). - Grouting floor and wall ceramic tiles in interiors.
- Grouting ceramic tiled industrial flooring where resistance to chemicals
is not required (garages, warehouses, etc.).
Technical Characteristics
Keracolor GG is a mixture of cement, graded aggregates, synthetic resins, special
additives and pigments. It has a very low emission of volatile organic compounds
and is classified Emicode EC1 Plus by GEV.
The following features are obtained when mixed with the right water ratio and used
correctly:
- good compressive and flexural strength, and good resistance to
freeze/thaw cycles, therefore good durability; - good abrasion resistance;
- low shrinkage, therefore absence of cracks and fissures;
- good resistance to acids with pH >3;
- excellent cost-performance ratio.
When mixing Keracolor GG with Fugolastic, a special synthetic resin based polymeric
additive, the final characteristics are improved, achieving adequate resistance
even under harsh conditions (grouting façades, swimming pools, bathrooms, floors
subjected to heavy traffic).
For further information refer to Fugolastic Technical Data Sheet
Recommendations
- Do not mix to Keracolor GG with cement or any other products. Never add
water to the mixture that has begun to set. - Do not blend different colours of grout together as there is a risk of
colour inconsistency and non-uniform final shade once the grout has set. - Never mix Keracolor GG with salt or dirty water.
- Use the product in temperatures between +5°C and +35°C.
- The amount of mixing water must be precisely measured. An excess of
water could induce the appearance of a whitish coat over the surface
(efflorescence). If mixtures with different mix ratios are prepared, different
colour tones could result. Efflorescence over the surface is due to the formation
of calcium carbonate and could also be caused by moisture residue contained in
adhesives, not fully hydrated grouts, in substrates not adequately dried, or in
substrates not adequately protected from rising damp. - After having filled the joints with the mixture, do not broadcast the
grouts with Keracolor GG powder to avoid an uneven colour. - When resistance to acids or hygienic finish is required, use a suitable
anti-acid grout (e.g. Kerapoxy). Expansion joints and distribution joints in floors
and walls should never be filled with Keracolor GG, but with the appropriate
flexible MAPEI sealants. - Occasionally the surface of some ceramic tiles or stone materials are
rough or contain micro-porosities. It is recommended to make a sample test to
verify cleanability and when necessary, apply a protective treatment over the
surface, avoiding its penetration into the joints.
Application Procedure
REFER TO TECHNICAL DATA SHEET PDF (See Specifications – Below)
Finishing
When the mixture loses its plasticity and becomes opaque, usually after 10-20
minutes, clean excess Keracolor GG with a damp hard cellulose sponge (e.g. MAPEI
sponge) working diagonally to joints.
Rinse the sponge frequently using two separate buckets of water: one to remove the
excess mixture from the sponge and the other with clean water for rinsing out the
sponge.
This can also be carried out with a power float.
To help remove the hardened product from the tiles, use a dampened Scotch-Brite®
pad or a disc-type power Float with special abrasive-felt discs.
If cleaning is carried out too soon (when the mixture is still plastic), the joints
may be partially emptied, therefore more subject to colour variations. On the other
hand, if the grout has already hardened, it is necessary to clean the surface
mechanically, which could scratch the surface of the tiles.
When applying Keracolor GG in extremely hot, dry or windy climates, it is
recommended to wet the joints after a few hours.
The wet curing always improves its final performance.
Final cleaning of a powdery haze of Keracolor GG from the surface is carried out
with a clean dry cloth.
After the final cleaning, if the surface of the floors or walls is still covered
with cementitious residues, an acid cleaner can be used (e.g. UltraCare Keranet),
when the grout is completely cured.
If a product to remove grout residues at the time of application is required, the
use of UltraCare Keranet Easy, suitable to remove excess grout from surfaces
immediately after application, is recommended.
For the use of products from the UltraCare range, please refer to the relative
Techincal Data Sheets.
Set to Light Foot Traffic
The floors are set to light foot traffic after approximately 24 hours.
Ready for Use
(with hypothetical curing at +23°C and 50% R-H.)
Floors are ready for traffic after 3 days.
Basins and swimming pools can be filled 7 days after grouting.
Cleaning
Clean tools and containers with plenty of water before Keracolor GG hardens.
Packaging
25 kg bags and boxes containing 4×5 alupacks depending on the colour.
Consumption
The consumption of Keracolor GG varies depending on the width of the joints, the
size and thickness of the tiles. Please refer to the product calculator to estimate
consumption rates at www.mapei.com. Some examples of coverage in kg/m² are shown in
the chart.
Storage
Keracolor GG can be stored 12 months (25 kg bags) and 24 months (5 kg bags) in a
dry place in its original packaging. Please refer to packaging label.
Safety Instructions
Instructions for the safe use of Mapei products can be found on the latest version
of the Safety Data Sheet, available from the Mapei website at www.mapei.com.au
PRODUCT FOR PROFESSIONAL USE
