DCI Epostone

DCI EPOSTONE is a two-component, epoxy adhesive with no vertical slip and extended reaction time for ceramic tiles and stone material

Product Description

DCI EPOSTONE is a R2T class Reactive (R), improved (2), non-slip (T), adhesive. DCI EPOSTONE can be used on walls and floors for thin bed and medium bed installations of tiles and stone material.

Field of Application

• For interior and exterior use

• For floors and walls

• Suitable for bonding mosaics on swimming pool

• For thin-bed and medium bed installations of all types of tiles

• Suitable for installation of large format tiles

• Suitable for application over waterproofing products like Seal Master, Seal Master Elastic, Aquaprotect, etc.

• For heavy-duty and high traffic areas

• Over the existing wall and floor tiles

• For bonding heavy weight tiles

• For bonding marble and granite

• Anchoring metallic rods in concrete structures

Product Details

Product identity

component A: thick paste
component B: thick paste
component A: white
component B: beige
Density (Kg/Lt):
component A: 1.7
component B: 1.2
Dry solids content (%):
component A: 100
component B: 100
Brookfield viscosity (mPa·s):
component A: 700,000 (# F - 5 rpm)
component B: 500,000 (# F - 5 rpm)
Classification: EN 12004 and EN 12002


DCI EPOSTONE is supplied in 5 and 15Kg plastic bucket.


1,5 kg/m2 with a 4 mm notched trowel
3 kg/m2 with a 8 mm notched trowel
3.5 - 4 kg/m2 with a 10 mm notched trowel
7 - 8 kg/m2 with a 20 mm notched trowel

Application Procedure

Preparation of the support

The support must be totally dried, mechanically hard, free of oils, grease, wax, paint, and lose particles. All substrates must not be subject to shrinkage after the installation of the tiles. During the spring and summer period, renders must be cured for at least one week for every centimeter of thickness, and cement screeds must be cured for at least 28 days unless they have been made with DCI special binders for screeds such as Screed80, Level S10, or with Level S30. Gypsum substrates or anhydrite screeds must be perfectly dry (max. residual moisture 0.5%), sufficiently hard, and free of dust. They must be treated with DCI Grip Primer or Beton Contact, while areas subject to high humidity must be treated with PRIMER CTA. On ferrous surfaces, rust must be removed by sand-blasting. On gypsum, plaster-board and anhydrite surfaces, we recommend consolidating the surface by applying a coat of Epo Primer S or Primer D.

Preparing the product

DCI EPOSTONE is supplied in two components which are supplied in pre-dosed buckets:
· Component A: 8 parts by weight;
· Component B: 2 parts by weight.
The ratio between the two components is compulsory, and any modification may cause the product to harden incorrectly. Pour the catalyst (part B) into the container with part A and mix well until a smooth paste is obtained. We recommend using a low-speed electric mixer to guarantee perfect bonding, and to avoid overheating of the mix which would reduce working times. Use the mix within 45 minutes of its preparation.

Applying the product

DCI EPOSTONE is applied with a notched trowel onto the substrate. Choose a trowel that will give coverage to the back of the tiles at least 65-70% for walls or indoor light foot traffic. For heavy traffic, the coverage must be 100%. To obtain good adhesion to the substrate, the following system is recommended: first, apply a thin coat of DCI EPOSTONE using the smooth side of the trowel and immediately after applying the desired thickness of DCI EPOSTONE using the toothed side of the trowel.

Installing the tiles

It is unnecessary to wet the tiles before installation; however, the backs are very dusty, they should be wiped in clean water. The tiles are installed under firm pressure to ensure good contact with the adhesive. DCI EPOSTONE open time in normal temperature and humidity is 20-30 minutes. Unfavorable weather conditions (high temperature, strong sun, drying wind) or high absorbent substrate may shorten the open time and, in some cases quite drastically, to just a few minutes. For this reason, there should be continuous controls to see if the adhesive is still fresh to the touch or has formed a surface skin. Should a surface skin have formed, the adhesive should be re-troweling. It is inadvisable to wet the adhesive when it has formed a skin because a non-adhesive film will be formed instead of dissolving the skin. Adjustment of the tiles, if necessary, should be carried out within 60 minutes following installation, after which time adjustment will become problematic. Tiling installed with DCI EPOSTONE must not be subject to rain for at least the first 24 hours and must be protected from frost and direct sun for at least 5-7 days after application.

Applying the grout

The grout installation can be done after a minimum of 8 hours hardening time at 23°C and 50% relative humidity for walls and after a minimum of 24 hours curing time at 23°C and 50% relative humidity for floors. Conditions may change the setting and curing time significantly.