Hydra sponge roller is made of hydrophilic
macromolecule – PVA, which is a continuous foaming molecule. With an excellent
hydrophilic nature, the roller can never be dehydrated.
Technical Index:
1.Water absorbing capacity: amounting to 8-10
times as heavy as its weight.
2.The operating temperature can not exceed 60℃. Otherwise, it will be aged and shortened
the service life.
3.Bonded sponge roller should be stored in clear
water if not used, to avoid shrinkage and shortening of its service life.