Water based coloured epoxide two component covering


Q-SMALTO LC a water based product made of two components, formed by:

  • component A: mix of pre-polymer epoxide liquids and additives;

  • component B: amine of co-polymerisation, pigments, charges and water based additives

After drying Q-SMALTO LC forms an opaque film which is impermeable to water and oils but not to water vapour.

It has an excellent adhesion to concrete substrates even if wet or cast only 12-24 hours previously; and is also resistant to chemicals.

Q-SMALTO LC is available in standard grey (RAL 7040) but can be ordered in many other colours.

Usage field

Q-SMALTO LC can be used to make tanks in concrete impermeable for the treatment of sewage and white water (drainage canals)

It is also used as a covering material for industrial quartz finished concrete surfaces.

The essential distinctiveness of the product is that it can be applied even to structures already wet or cast for at least 12-24 hours while the adhesion is not compromised.


10.25 kg (A+B) of which:

  • comp.A: 1.0 kg
  • comp.B: 9.25 kg


Water based coloured epoxide two component covering

Substrates preparation

The substrate must be carefully examined to ensure that it is a base suitable for the cycles of the chosen application.

Depending on the condition of the substrate it is necessary to choose the preparatory treatment to be used:

1. on concrete freshly cast, immediately after the mechanical floating phase (generally 8-24 hours after the cast), check the permeability of the surface (which might have been compromised by the presence of hydro-repellent substances in the consolidation and surface hardening treatments) by pouring a glass of water onto it. In the case of the substrate being permeable, it is possible to directly apply Q-SMALTO LC 12-24 hours after the cast.

If the water is not absorbed first carry out:

A sanding with an HTC sander or similar, or

wash with acid using undiluted NORDECAL FORTE sprayed at low pressure onto the surface and brushed with a carbon-fibre or nylon padded buffer; then aspirate the liquid and rinse.

Then proceed to the application of Q-SMALTO LC.

2.   On old concrete surfaces clean carefully using products suitable for the elimination of anything which might inhibit the adhesion and penetration of the product (grease, oil, varnish etc.). Normally a wash with STRIPPER and a mechanical brushing, followed by an abundant rinsing and aspiration of the washing liquid is sufficient. In the event of pollution of the concrete by oil, old glue or varnish, rust, mould etc. a sand-blasting should be done using a marble sander of the HTC type.

Then proceed to the application of Q-SMALTO LC.

3. With old floors where there are holes, the hollows and the unevenness of the surface which are deeper than 5 mm should be filled with GROVE RAPIDO or GROVE COLABILE: Those less than 5 mm with W3.

4. Old floors with problems of low pressure resistance and a noticeable porosity should be strengthened by soaking with one or two coats of NORPHEN SW SOLID diluted between 4 and 7 times with water (the dilution depends on the absorption of the substrate) or with Q-PRIMER applied as a primer (diluting as described in the technical notes). Now proceed as at para. 2.

Product preparation

Pour Q-SMALTO LC comp. A onto comp. B and mix well using a professional blender at low speed.

Product application
  • apply with a roller, paint brush or spray;
  • After the preparation of the surface Q-SMALTO LC should be applied in one or two coats with a day between the coats until the projected thickness is reached.


Water based coloured epoxide two component covering

Average Consumption

In order to complete a covering 0.15 - 0.20 mm thick apply from 0.25 to 0.30 kg/m2 of product (A+B), depending on the absorption of the substrate.


Water based coloured epoxide two component covering


mass volume, UNI 8310


1.47 ± 0.05

pot-life, UNI EN ISO 9514


90 ± 10

Surface drying time, UNI 8904


6 ± 1

Setting time


> 7

Adhesion to concrete, UNI EN 24624


3.5 ± 1.5

UV and condensation resistance, ASTM D 4329

(168 hours of exposition)



> 10


Abrasion resistance UNI 8298-9


< 140

Cup 6 Viscosity, ISO 2431



Test for surface brilliance (gloss 60°), UNI EN ISO 2813


5 ± 2

permeability to water vapour, DIN 52615


~ 10000

Ratio A : B

1 : 9.25

N:B: the testing method refers to the regulations quoted

Chemical resistance, UNI EN ISO 2812-1 (method 2)

hydrochloric acid 30% in water


Sulphuric acid 10% in water


Phosphoric acid 20% in water


Acetic acid 30% in water


ammonia 15% in water


sodium (sodium hydroxide) 30% in water


peroxide 3.5% (12 volumes)


Mixture of acetic acid (5%) lactic acid (3%)and sodium chloride (2%) in water


Tartaric acid 5% in water


Methylated spirits




Solvesso 100


Ethyl acetate


Technical acetone


(1 = disintegration of the product, 5 = no alteration; for the complete scale see Table 1, appendix A)


Water based coloured epoxide two component covering

Warning and informations
  • 90 minutes after the end of the mixing of the two components A and B interrupt the application.
  • Do not use at temperatures less than +5°C.
  • Mix components A and B in the ratio indicated on the packaging.
  • Read the Safety Notes.

Comp. A and B: 24 months in the original packaging in a covered and dry place at temperatures between +5°C e +35°C. Protect from frost.