For maximum results, the following instructions must be very carefully complied with :

Surface preparation:

Each type of surface must be prepared accordingly. Refer to the specific processing data sheet for BLUESIL SEALANTS, RTV’s or CAF’s.

Note: the surfaces must be perfectly clean, dry and free from any dust or other matter than may impair adhesion.

Applying the primer:

Use a pad or a lint free cloth: special care should be taken to apply a uniform and very thin coat.
The primer is sensitive to atmospheric humidity, which may lead to the formation of a whitish deposit due to hydrolysis of the active ingredients when such a deposit is seen in the recipient, it should be discarded this is why it is important to tightly reseal the container each time after it has been used. It is good practice to pour the required amount into a separate container.
Care should be taken to protect the primer coating from any dirt whilst it is drying.

Comment: the primer is applied to a material surface at a temperature of between + 5 and +30°C; if the temperature is too high, rapid evaporation of the solvents might cause irregular primer coating.
When not in use, keep the container tightly sealed to avoid any hydrolysis of its active ingredients (appearance of a whitish deposit).

Consumption: approx. 50 g/m2

Drying time:

The drying time is especially dependent on room temperature, ambient humidity and on the porosity of the surface.
For example, at a temperature of around 20 °C, a drying time of around 15 minutes is required.
Comment: the elastomer should be applied as quickly as possible once the primer has dried, in order to avoid the primer surface becoming dirty (dust, moisture, greasy deposits, etc.).


BLUESIL PRIM 10073 may be stored at temperatures between -5°C / 23°F and 30°C / 86°F for up to 18 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


BLUESIL PRIM 10073 is a product intended to improve the adhesion of BLUESIL one-component and two-component elastomers to metals and certain painted surfaces. The product is available as a ready-to-use solution of reactants diluted in a solvent.



BLUESIL PRIM 10073 is used with sealants in building construction and industrial applications on surfaces such as:

  • Aluminium,
  • steel,
  • stainless steel,
  • lead,
  • zinc,
  • alloys,
  • polyester powder coated substrates
  • fluorocarbonated resin based substrates.

Asia Pacific;Europe Middle East Africa;Central and South America;North America




Specific Gravity0.8Monocompkg/dm3
Flash point16Monocomp°C




































Domestic Appliances Appliances