不是用于墙面防水的,我的问题是二楼卫生间滴水,导致一楼天花板上有水斑,这种水斑刷一遍两遍漆很难盖住,有人提醒我一种喷的东西,往水斑上喷然后再油漆就行。

Follow these steps when covering over a water stain on your ceiling:
- Start by finding the cause of the leak, and repairing the problem to prevent damage in the future.
- Purchase a spray can of stain blocking primer or sealer.
- Spray cans work better than a brush, especially on popcorn or textured ceilings.
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把照片存手机上,直接去HD问,问完直接买说的就是这个,这个spray 有名品牌字吗?