Iron oxide pigment has good physical and chemical properties.
Soda-resisting: It is very stability to alkaline matter, such as cement and lime. It has no weathering function to cement and has no function to its strength.
Acid-resisting: It has relative stability to ordinary weak acid and thin acid, but does not resist to powerful acid.
Light-resisting, weather-resisting: It has best light-resisting and weather-resisting. Its color can not be changed by shine upon strongly.
Heat-resisting: Its color can not be changed under relative temperature, the limit temperature for various products is as follows:
Fine-resisting, dissolve-resisting: It can not be dissolved to water, all various mineral oil and vegetable oil and organic solvent.
Else: It can reinforce the function of paint's antirust. It has no function to rubber product's vulcanization.