1. Loading capacity
- The sink bowl should be able to withstand 100 kg concentrated load, any deformity should be less than 3 mm.
- The sink should be able to withstand 100 kg load without caving in, cracking, loose weld, etc.
2. Sound deadening pad
- Sound deadening pad should stick firmly and evenly. It should also significantly reduce noise while the sink is in use.
- It should also be eco-friendly.
3. Undercoating
- Effectively prevents condensation and drippings.
- The undercoating must be secure, evenly sprayed. It should not have any ripples, exposed areas, wrinkles, patches, or any defects.
- It should also be eco-friendly.