Another sign is when products like Quik Detailer or Final Inspection become slow and difficult to remove, this is a sure sign you paint needs a fresh coat of wax.

• 另外一个方法是当快速护理液或多功能护理剂在使用时捻开的速度比较慢或很难打圈时，这也是一个需打蜡的信号。