Primer EP


Two-component epoxy resin as a primer

Two-component, water-based epoxy resin. It is specially designed to increase adhesion to substrates and improve planimetry for liquid waterproofing systems TECNOCOAT and DESMOPOL and flooring systems TECNOTOP and TECNOFLOOR.

TDS. Technical Data sheet(PDF)


For application in the following situations:

  • increase adhesion and improve the planimetry of concrete, mortar, bitumen felts, metal or ceramic substrates

NOTE: call our technical department about the application to other supports or situations

density  1,00 ±0,1 g/cm³
viscosity 5.000±1.000 cps
pot-life  60~90 minutes
initial dry time   ±5~6 hours
application method by brush, by a short nap acrylic wool roller or“airless” equipment


  • Two-component epoxy water-based resin, solvent-free, odorless, which once dry forms a continuous film in mortar, concrete, bitumen felts, ceramic tiles, and steel increasing adherence for liquid waterproofing and flooring systems
  • Its consumption depends on the situation of the substrate, irregularities that it presents or level of planimetry. It can be applied in a thick layer, self-leveling system
  • Do not use with groundwater pressure (water pressure coming from the back of the treated element.
  • It can be diluted in water (max. 20%), to facilitate application. It must be valued the humidity existing on the support.


Metallic pails in two different formats:

  • LARGE KIT:15 kg+5 kg
  • SMALL KIT: 3 kg+1 kg


12 months at temperatures between 5° C and 35° C (41 ºF to 95 ºF), provided it is stored in a dry place. Once the tin has been opened, the product must be used.


The following factors prior to application should be checked:

  • previous preparations of the substrate through physical processes (substrate preparation (sanding, polishing, shot blasting, or milling) for laitance and reliease agents as well as for the opening of the surface pore, achieving a suitable anchorage profile. (CSP 3 -4-5, according to the ICRI)
  • existing holes or areas with a lack of material must be repaired using some or our epoxy resins: Primer EP-1020/Primer EP-1010
  • joint fillings with Mastic PU
  • in existing dilatations joints: remove old material, clean, and fill with Mastic PU. Use also Tecnoband 100 to cover, if necessary.
  • joint filling for installation, work and consolidation of surfaces.
  • general cleaning of the substrate, removing existing dust, dirt, grease or efflorescence. The substrates must be resistant and cohesive.

Mortar, concrete or ceramic substrate

  • substrate must be fully cured (the concrete curing process is 28 days). Check the maximum degree of moisture permittivity of the substrate
  • dilute with water (max- 20%), on non-porous supports for a thin film, or to facilitate the application in the case of rough substrates.
  • mix the two components using a mechanical shaker for approximately 4-5 minutes (medium speed)
  • apply the resin in two or more thin crossed coats until the desired planimetry is achieved. (always wait for drying before recoat). Consumption between 150 and 200 g/sqm depending on the roughness of the support. Apply as many coats as the substrate needs.

NOTE: For other types of substrates, weather conditions or final use, consult our technical department.


These safety recommendations for handling, are necessary for the implementation process as well as in the pre and post, on exposure to the loading machinery.

  • Respiratory Protection: When handling or spraying use an air-purifying respirator.
  • Skin protection: Use rubber gloves, remove immediately after contamination. Wear clean body-covering. Wash thoroughly with soap and water after work and before eating, drinking or smoking.
  • Eye / Face: Wear safety goggles to prevent splashing and exposure to particles in the air.
  • Waste: Waste generation should be avoided or minimized. Incinerate under controlled conditions in accordance with local laws and national regulations.

Anyway, consult the material and safety data sheet of the product(MSDS) or contact our technical department




Density         ISO 1675

1,00 ±0,1 g/cm³

Viscosity       ISO 2555 5.000±1.000 cps (non diluted)
Density comp. A/B       ISO 1675 1,15 ±0,05 g/cm³ /  1,12 ±0,08 g/cm³

Viscosity comp. A/B       ISO 2555

8.000~15.000 cps / 1.100~800 cps

VOC(volatile organic compounds) 2~10 g/l comp. A + 0 g/l comp. B
Adhesion to the concrete >1,5MPa
Mixing ratio (in weight) 3:1
Water content (in weight) ±45%


60~90 minutes

Dry  time

5~6 hours

Recoat range temperature

6~48 hours

Environmental temperature for application

3ºC ~ 35ºC / 5ºC ~ 30ºC    (37ºF to 95ºF / 41ºF to 86ºF)

Max. moisture on the support


Max. ambiance humidity 80%

Dilution (on water)

max. 20%

Results performed in the laboratory at 23ºC (73ºF) and 50% RH, under controllable conditions. These values may vary depending on the application, climatology, or substrate conditions