Description Overview Simulates the circumstances of sunshine radiation and heat to test the yellowing resistance of samples after a period of testing Uses a uv light of 300 watts for short testing time Can also be used as an aging tester and dying oven for multi-use of one machine Tests the resistance to discoloration of shoe materials such as white and light color upper materials, sole materials, leather, pu, fabric, etc. Assesses the defect of products from radiation of sun in normal use and high temperature of container during transport Advisable to use grey scale for reference to assess the level of yellowing
