After finishing, he puts a mixture of rosin and oil-based adhesive on each painting, both to preserve it and to make the colors bright.
從頭到尾，每一道手續都精密處理完成的作品，最後還有一道上膠的手續，就是把松脂溶於油質膠料，塗布在畫上，不但具有使油彩不褪色、變色的保護作用，還可使原來的色澤更為鮮明。