37+2.8+35+25(YL-series) is the smallest ratio formula, we use the formula to make one bright green panel P216/RAL 250-3,it passed artificial weathering aging test(test time was during 2017.6.21-2017.7.14) which was made by China Coating Quality Supervision and Inspection Center ,the product is qualified .For details, pls check the report(report No.TW171363L2)