1. Where do you use this product?
   - When partial repair is required for existing urethane, you can use one Tantan urethane waterproof bond (C-50 green, C-60 gray) without needing too much, primer coat, intermediate coat, top coat. It can be used to repair the cracks of urethane, the lifted or swollen, and the different heights suface. 

2.  A lot of cracks in the urethane, what should I do?
   - For areas with a lot of cracks, apply urethane waterproof bond first, spread the reinforcement fabric, and apply urethane waterproof bond again. After drying it, apply 1 to 2 more urethane waterproof Bond.

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3. What should I do with the urethane lifting and swollen?

- Remove the urethane's swollen surface, cut the swelling with a knife, dry it, and fill it with urethane waterproof bond.

4. What if there is a different height in the urethane removed area ?

    - Apply a layer of reinforcement fabric one by one, and work on several layers to match the different heights or fill the urethane waterproof bond with remittal (or sand).

5. What's the drying time?
   - Set to touch dry - 2 hours, complete drying - 24 hours (based on image 25℃ and humidity below 60%)

     Depending on the width and depth when repairing gap and flush 

6. How long can you keep it?
   - If you close the cap after use and store it indoors (at 5℃ higher, it is not frozen), it can be reused for up to 15 months.