Prime or Not to Prime, that is the question!

Prime or Not to Prime, that is the question!

When it comes to line marking applications or surface repair work, there is a big question that we get all the time: 'Do I need to prime?’

Surface primers improve adhesion properties between the surface and the marking or coating.

Any surface marking application or repair work should utilise primer for the guaranteed performance of the topcoat. There is a wide range of primers suited to different surface types and overcoating of existing systems.

Most paint application failures result from inadequate surface preparation. If the surface is not well

prepared or primed, then you can only expect lower finished system performance levels. The saying

goes… if you fail to prepare; prepare to fail.


So, does the primer depend on the surface?

Yes. The range of primers consists of primers for varying surfaces as well as primers for different style products. Some examples of surfaces that require primers are:

  • Asphalt
    • Newly laid
    • Old/weathered
  • Concrete
    • Polished
    • Smooth
    • Tamped
    • Old
  • Metal
  • Wood

In every scenario, a primer significantly improves the bond between the surface and the products being installed. It’s not as easy as one product fits all, although some primers can be used across multiple surfaces.

Like primer, ScratchCote can also be used to fill voids in open surfaces, improve the life of the surface, improve the aesthetics, and ensure correct coverage of the final solution.

What about the different products?

Similar to the varying surfaces, recommended primers also differ depending on the system being used. Primers can also differ between two-pack and single-pack products. Some examples of different materials that require different primers are:

  • Epoxies
  • Acrylics
  • Thermoplastics
  • Polyaspartics
  • Polyurethanes
  • Solvent based/water based
  • Bitumen based


How to apply primers?

Most primers are single pack, and ready to apply. They don’t need to be thinned, or mixed with any other materials, they can be simply roller or spray applied. Other primers can include MMAs which need to be mixed with powder peroxide, through to just a thinned first coat for some area coatings.

In all scenarios, primers are relatively simple and easy to apply, and are a no-brainer if you wish to guarantee any markings or repairs.


So, in conclusion, should I use primer?

100% yes. Primers are fast drying, easy to apply and give you a solution that you can guarantee. Primers improve the adhesion, strengthen the bond, and allow paints to be used across a number of substrates.

If want to to know more about which is the best primer for the job then contact us and will be happy to answer any of your questions. Or call us on 02392 200606.