1. Cleaning: use the ordinary liquid detergent and soft cloth. Warning: Do not use acetone and ammonia detergent! Do not use formic acid and formaldehyde detergent!
2. How to remove the scratch from the bathtub surface: Use 1500# sand paper to polish the scratch surface and then coat it with car polishing wax, it will be restored after polishing the wax by a soft cloth.
3. How to remove the scales: clean with the soft acidic detergents such as lemon juice, vinegar sauce
4.Heat tolerance: the bathtub cannot touch the heat source which is higher than 80°C.
5. Hardness tolerance: cannot use hard objects, blade devices to touch bathtub surface!