Young’s Modulus, E, (MPa)

House-use detergent

Car wash detergent

before exposure time (mean ± SD)

after exposure time (mean ± SD)

before exposure time (mean ± SD)

after exposure time (mean ± SD)

1613.9 ± 257.7

1728.6 ± 241.2

1668.7 ± 215.2

1724.6 ± 219.4