Definition
A finish described as between very matte and high gloss. Product names are not standardised measurements, so two "satin" films may look different.
Why it matters
Check actual samples side by side on a representative colour. If only some panels will be covered, inspect the transition to the existing finish before deciding on coverage.
Apply the concept
How to compare PPF finish and quality
Use an installed sample and a documented specification to compare clear, matte, coloured and coated films.