Primer WET


Two-component, epoxy resin as a primer for damp conditions

Two-component, 100% solids content epoxy resin. It is specially designed to increase adhesion to high humidity substrates and improve planimetry for liquid waterproofing systems TECNOCOAT and DESMOPOL and flooring systems TECNOTOP and TECNOFLOOR.


For application in the following situations:

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

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

density  1,50±0,05 g/cm³
viscosity 4.000~6.000 cps
pot life ±60 minutes
drying time   ±4 hours
application method notched trowel or rubber lip

TDS. Technical Data sheet(PDF)


  • Two-component, 100% solids content epoxy resin, solvent-free, odorless, which once dry forms a continuous film in concrete, mortar or ceramic substrates increasing adherence for liquid waterproofing and flooring systems
  • Retains the residual humidity of supports such as mortars or concrete up to 98%
  • 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)
  • No dilution needed at all


Metallic pail kit: 11,95 kg + 3,05 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 preparation of the substrate according to its type
  • 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.
  • general cleaning of the substrate, removing existing dust, dirt, grease, or efflorescence

Mortar, concrete or ceramic substrate

  • check the maximum degree of moisture permittivity of the substrate
  • mix the two components using a mechanical shaker for approximately 4-5 minutes (medium speed)
  • extends in a single coat, using a notched trowel or rubber lip in a single thick coat. Consumption around 400 and 450 g/sqm. Always respect the recoat time between coats or between different materials. In case of rain, apply a thin layer, consumption approx. 100-150g/sqm.

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

1,50±0,05 g/cm³

Viscosity              ISO 2555 4.000~6.000 cps
Density components  A/B       ISO 1675 1,72 ±0,08 g/cm3  / 1,10 ±0,05 g/cm3
Viscosity components  A/B     ISO 2555 26.000~30.000 cps  /  300~400 cps
Solids content         ISO 1768 100%
VOC content (volatile organic compounds) 0 g/l comp. A+0 g/l comp. B 
Mixing ratio  (in weight) 3,90:1

Water vapor transmission at consumption:400 g/sqm (270 microns)        EN ISO 7783:2012

45,57 ±2,74 Class II
Pot-life  ±60 min.

Initial dry time

±4 hours

Cured time ±7 days

Recoat time

9 ~ 48 hours

Application temperature range (substrate and environmental)

5 ºC ~ 35 ºC      (41ºF to 95ºF )

Max. moisture on the substrate


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


TECHNICAL DATA (according to EN 1504-2:2005 Principle 1.2: Protection against penetration)



Applied consumption

600 g/m³ (400 microns)

High bond strength by pull-off   EN 1542:2000

3,98 MPa

Liquid water permeability    EN 1062-3:2008 0,020 kg/(m²*h 0,5)
Determination of carbonation depth   EN 14630:2007
  • 1,9 mm.
  • Class. I<10 mm.

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