Color is the retention product
Clear coat and primer are commodities a shop can swap; the color system is what locks a body shop to your brand. If a shop can match any car on your tinting machine, it will keep buying your mothers, your clear and your ancillaries.
Cover the three effect families
A credible refinish range must cover solid colors, metallics and pearl/effect colors. Pearl and metallic shades carry the premium and are where cheap ranges fail first, because effect pigments need consistent particle size and loading batch after batch.
SANHE supplies solid, metallic and pearl color mothers in both 1K and 2K systems so your tinting bank can reproduce all three families.
Keep the mother bank lean
New distributors over-stock color. A better start is a curated mother bank covering the highest-frequency shades in your market (whites, blacks, silvers, greys and the dominant local taxi/fleet colors), plus pearl and metallic masters for custom work. Expand from actual dispensing data, not from the full fan deck on day one.
Custom colors as a service
Beyond stock shades, offer match-to-sample: a customer sends a panel or code and the factory reproduces it. SANHE handles custom color development and can supply it as tinted finished product or as mothers for your own bank.