... friction resistance,corrosion resistance, ageing resistance, solar cooker reflective film 1.reflective rate is over 95% 2.rubbing,anti-corrosion ... over 3 years solar oven reflective filmSpecificationUltra-high-performance reflective film reflective rate is normally 90% or more, rubbing, ... anti-corrosion, anti-aging.Boil 1 liter water only need 3-5 minutes ,the fastest. High Brightness, ...