Linking to Chemical Patina
与化学着色衔接
标签：衔接, 化学, 叠加, 进阶
热着色可作"底层"再叠加化学着色：先火焰/烘烤做蓝紫底，再局部肝硫/硝酸盐点染，形成"热底+化学锈"的复合层次，色彩最丰富且膜结合牢固。顺序：热色→冷却→局部化学（避开已热色区或刻意叠加）→整体封护。注意化学药剂勿涂到不需着色的亮区，可预先打蜡隔离。
Use heat color as a base then overlay chemicals: torch/oven blue-purple base, then local LoS/nitrate dabs for a "heat-base + chemical-rust" composite — richest color, strong bond. Order: heat → cool → local chemical (avoid or intentionally overlap) → overall seal. Keep chemicals off bright zones you want clean; pre-wax those areas as a mask.