Electrophoresis-free coating process for stainless steel decorative strip

The invention discloses an electrophoresis-free coating process for a stainless steel decorative strip. The electrophoresis-free coating process comprises the following steps of washing with flood hot water, degreasing, washing with water, washing with pure water, dehydrating and drying, primer applying, primer leveling, primer drying, colored paint applying, colored paint leveling, varnish applying, varnish leveling and varnish drying, and further comprises a chemical treatment link; and the chemical treatment link comprises the following steps that S1, a chemical is prepared, namely a treatment agent is mixed into clear water to obtain the chemical of which the concentration standard value is controlled to be 0.5-25% v/v and the pH standard value is controlled to be 4.5-6.5; S2, reaction treatment is conducted, specifically, the stainless steel decorative strip is placed in a treatment tank, the reaction treatment time is controlled to range from 30 S to 120 S, the temperature is controlled to range from 20