Using the correct recommended grey shade is vital for obtaining the correct opacity and coverage when applying basecoat colour. The correct grey shade will also reduce the amount of paint required to cover the primed area.
Glasurit have 8 grey shades ranging from 00 (darkest) to 07 (lightest).
Below is an example of how using the correct grey shade can achieve full coverage whilst saving on paint in the basecoat application process.
This Audi A5 colour code LY3S (Matadorrot Perleffect) has a recommended grey shade 01 which is applied over the prepared U.V primer. The basecoat application covered in just two coats. The final drop coat is always applied to obtain the most accurate re-production of the factory colour match.