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Question:

Calcium silicate board wall can be directly putty putty

Calcium silicate board wall can be directly putty putty

Answer:

If the direct application of calcium silicate board (plate) on the batch of putty powder prone to fall off (gray) phenomenon, we must first primer, it is recommended to use the home of the German brand brackish putty to scratch again (TB) To be dry and then approved scraping putty powder.
In the calcium silicate board (plate) on the gap to be caulking. It is recommended to use the home of the heart of the card to worry about toughness to fill the joints, and then paste the seam (master understand)
Because the calcium silicate board (plate) surface is relatively smooth, directly in the calcium silicate board (plate) on the batch of putty powder prone to fall off (gray) phenomenon, first primer.

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