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Anonymous users2024-01-241.First open the holes on both sides of the door, and pour the cement mortar from both sides of the door, so as to make the door more firm.
2.Since the merchants have expansion nails on the side of the door during installation, if the cement slurry cannot flow in, the cement mortar can be left at the bottom of the door by stirring up the cement mortar with strips of steel bars or wood.
3.The cavity is too large, and there are common things on the seams after the door is installed, and when the cement mortar is poured into the place, the local materials are plugged with things to prevent the cement mortar from flowing out.
4.Until the poured cement mortar is left to the bottom hole of the door frame, the hole can be temporarily sewn up at this time, so that the mortar can continue to be filled full.
The inside of the security door should also be filled with cement slurry until it is full and the door is strong.
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Anonymous users2024-01-23The above are middle school students... Always take it for granted. Also washed with acid, I'm dizzy... Think about what if someone does what you want and messes the door? Everyone knows about acid-base reactions, but we still need to precipitate salts...
Scrape with a wooden tool (or just a small flat piece of hardwood), not sandpaper or iron tools, and scrub carefully with a muslin cloth and water after shaving. If there is any damage to the paint, it needs to be repaired with the same brand of paint (you can ask the door seller for it).
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Anonymous users2024-01-22Mortar, the composition is CaCO3, washed with acid, I think.
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Anonymous users2024-01-21Grind with sandpaper and wash with vinegar.
Looking for someone who sells security doors, if they don't know, they have a special installation master will.
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No need to rework, first of all, it depends on the flatness of your initial floor, and secondly, it is the craftsmanship of the master. But the gap is not big, it doesn't matter.
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