| 摘要 |
Provided is a precoated metal sheet wherein there is at least one layer of a coating film on a metal sheet. The precoated metal sheet has an outermost surface layer formed from a high-elasticity coating film wherein the indentation depth recovery rate a is 70% or greater. The indentation depth recovery rate is found by using a microhardness gauge to measure the load applied to an indenter and the indentation depth when the indenter is pressed under an applied load of 5 mN into the coating film at a temperature of 25°C and then the load is removed (a = (DM - DE) x 100/(DM-D0), where D0 is the indentation depth immediately after the start of application of the load to the indenter, DM is the indentation depth when the load applied to the indenter reaches 5 mN, and DE is the indentation depth immediately before the load of the indenter is completely removed). The precoated metal sheet has excellent scratch resistance. |
