5.8.1 Priming of ceramics
The primer primarily promotes adhesion between the substrate surface and the adhesive, namely it acts as an adapter between the surface and adhesive.
Priming is in principle suitable for all ceramics. It must be ensured that the primer is suitable for both the substrate and the adhesive.
- Prior to priming the surface must always be thoroughly cleaned and degreased.
- Apply the primer evenly in a thin layer using a sponge, following the instructions of the manufacturer (thick layers weaken the adhesive bond)
- It must be ensured that the primer is suitable for both the substrate material/surface and the adhesive
- Heed the airing time (evaporation time); then apply the adhesive within the open time
Points to heed:
- The substrate surfaces must always be thoroughly cleaned and degreased and if necessary other surface treatment processes must be carried out
- Mix the primer before use
- Apply a thin, even layer
- Heed the airing time
- Heed the open time
- Close the container immediately after removing primer
- Note the date of opening on the container
- Primers must be used within a limited time after the first opening of the container