Constructions of waterproof material

（1）Adjustment of bottom layer

The foundation of waterproof is finding where is leaking. But in effect it is very difficult to find.
So the important thing is that we cannot leave the pothole on the ground. If potholes exist, you should use mortar to fill it.

Next, fj,, the sealant in the cracks. HENSEI and URETHANE can be used.(Silicone is forbidden)

Make the ground keep dry.
Maintain the ground for 3 weeks.

（2）Things used to veil

The areas like gutter, frames, you can veil them by masking tape, paper.

（3）Primer

Primer can keep the wetness between sealant and basic material. The procedure is very important.
Generally speaking, you can apply the minor parts with brush while apply the big areas with roller. The drying time takes about 30 to 60 minutes. (The thick primer needs longer time to dry.)

（4）Waterproof material

Waterproof material consists of high viscosity liquid. So after long time lay aside, it should be fully mixed before being used.
Like the applying methods of primer, apply the minor parts with brush, and the big areas with roller. If the viscidity is too high to use brush, you can choose spatula and scraper knife to apply.
Waiting the waterproof material become dry after the first paint, then start paint it again. Only once print can not prevent leakages in the future.

（5）Rip the tapes off

Use knife to part the tapes and waterproof material. If rip the tapes directly, it is possible to rip the waterproof material together.

（6）Clean the tools

（1） the condition of using latex waterproof material

In the process of painting, put the tools into the tank to prevent them being dry. After painting, wash it with water quickly and soak it into water lasting one night. The roller can be cleaned. Obeying the above instruction, roller can be cleaned thoroughly. It should be noticed that the waterproof material do not soluble in water after dry, so you should clear it as soon as possible.

（2）the condition of solvent series

It can not soluble in water, please use thinner to wash it away.

（3） If the waterproof material drop on the clothes ・・・

After it become dry, you can peel it off, then use thinner to wipe it.