A practical guide to ensure that you always choose the right primer

TECNOPOL PRIMER, DISCOVER MORE ABOUT OUR RANGE OF PRIMERS

Tecnopol polyurea primer

We are sure that it would no surprise you to hear us say that every project is different. The characteristics of each project are determined by the type of substrate to be treated, as well as its state, prevailing climate conditions (temperature and humidity) and the system to be used.

Based on our experience we can affirm that one of the most important steps to guarantee the system’s success is the primer, both in terms of choosing the right product and as regards its application. Carrying out this step correctly guarantees the success of the job and avoids the setbacks and problems that could arise in the future.

At the moment we have a range of 5 different kinds of primers that cover the wide range of substrates and conditions that you may have to deal with in your projects.

  • PRIMER EP-1020. 100% solids epoxy based primer
  • PRIMER EPw-1070. Water based epoxy primer
  • PRIMER PU-1000. Polyurethane primer solvent based
  • PRIMER PU-1050. Polyurethane primer 100% solids
  • PRIMER PUc-1050. Polyurethane primer 100% solids for low temperatures 

The following comparative table shows the main characteristics of our primers:

  PRIMER EP-1020 PRIMER EPw-1070 PRIMER PU-1000
Type 100% SOLIDS EPOXY WATER-BASED EPOXY SOLVENT-BASED POLYURETHANE
Density 1.050 kg/m3 1.000 kg/m3 1.110 kg/m3
Adherence to concrete > 2 MPa > 2 MPa > 2 MPa
Maximum substrate humidity 4% 8% 5%
Pot life 50 min (23ºC)
60 - 90 min (23ºC)
--
Time to touch dry +/- 5 hours (23ºC) +/- 5 hours (23ºC) +/- 1 hours (23ºC)
Re-application time 24 hours  (23ºC) 24 hours (23ºC) 24 hours (23ºC)
Use temperature 10 ~ 30ºC 5 ~ 35ºC 5 ~ 30ºC
Dilution NO Water (max. 20%) DESMOPOL SOLVENT (5 ~10%)
 
  PRIMER PU-1050 PRIMER PUc-1050
Type 100% SOLIDS POLYURETHANE Low temperature 100% SOLIDS POLYURETHANE
Density 1.110 kg/m3 1.110 kg/m3
Adherence to concrete > 2 MPa > 2 MPa
Maximum substrate humidity 5% 5%
Pot life 35 - 50 min (23ºC) 35 - 50 min (15ºC)
Time to touch dry +/- 2 hours (23ºC) +/- 2 hours (15ºC)
Re-application time 24 hours (23ºC) 24 hours (15ºC)
Use temperature 5 ~ 35ºC 5 ~ 15ºC
Dilution NO NO
 

 

THE RIGHT CHOICE

THE DESMOPOL POLYURETHANE AND TECNOCOAT PURE POLYUREA SYSTEMS

All you have to do is establish the type of substrate to be treated. We differentiate between “porous substrates” and “non-porous substrates”. In the case of porous substrates in cold environments, priming with PRIMER PUc-1050 is recommended as it is specific for this type of application. In some cases we can use the PIMER EPw-1070 as a vapor barrier with a consumption next to 1 kg/m2 .
 
SUBSTRATE TEMPERATURE PRIMER
POROUS  
(concrete, cement, etc.)  
5-35ºC PRIMER PU-1050
PRIMER EPw-1070
PRIMER PU-1000*
5 -15ºC PRIMER PUc-1050
NON-POROUS
(metal, ceramic, laminate, asphalt, wood, etc.)
3 - 35 ºC PRIMER EPw-1070

* Use only in DESMOPOL systems

 

THE TECNOFLOOR EPOXY PAINTS SYSTEM

In the case of epoxy paint based systems, it all depends on the TECNOFLOOR products used. 
 
FINISHING PRODUCT SUBSTRATE PRIMER
TECNOFLOOR Tw-3040
Water-based epoxy coating
ANY PRIMER EPw-1070
TECNOFLOOR T-3020
100% solids epoxy coating
POROUS PRIMER EP-1020
NON-POROUS PRIMER EPw-1070

polyurea primer apply

 

CORRECT APPLICATION

The steps described below are for guidance purposes only; to ensure correct application we suggest you read carefully the technical specifications for the product, available on our web page. 

  1. Prepare the substrate correctly, in accordance with the procedures indicated in the technical specifications.

  2. Mix the two components using a mechanical agitator for approximately 2 minutes.

  3. Apply one or several coats using a roller or suitable airless equipment until the required thickness is achieved. Wait until touch dry between each coat and do not exceed, in any case, the maximum re-application time. If this time is exceeded, the substrate preparation must be repeated and the process started again.

  4. Wait until the drying time has elapsed before continuing to apply the chosen system.

 

EXCELLENT REPAIR CEMENT

In most cases when preparing concrete, it is necessary to fill in unevenness and holes.

A “trick” to achieve an excellent and extremely hard repair cement without using any water in the mixture, which avoids retraction and makes it really quick drying, is to mix 1 part of PRIMER EP-1020 resin with three parts of calcium carbonate CaCO3. 

polyurea support preparation