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Four ways to control water stain--5

2008-12-17

prevention for water stain pathological change
Although it is quite difficult to eliminate thoroughly the stone  water stain, but it could avoid the occurrence of stone water stain completely, the method is:

1. use the special-purpose protective agent before the installation, handle the protection processing for the stone , specially for stone  bottom surface protection.
2. during the installation, the stone  wet sticking should reduce moisture content of the cement mortar, and also reduce the amount of cement mortar. ie, then use the subarid cement mortar.

3. adopt applying a layer of cement mortar at the bottom surface of stone as far as possible and avoid using the subarid mortar basis sprinkling with the liquid to glue stone .
4. when install the stone, should design and reserve the suitable water vapor channel, after the installment, should maintain the stone  puts together with the seam spatial smooth, one week later carries on caulked joint processing again.
5. after the aqueous method glue installment, stone  should avoid the rain dripping wet or affected with damp (especially just installed two to three week it is prohibit strictly).

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