Second-hand house wall renovation steps
Real estate continues to heat up, and second-hand housing transactions are also increasing day by day. How to make second-hand houses glow with a warm atmosphere, wall renovation is a key breakthrough point.
If you want to re-latex paint, you can follow the steps below:
1. Water on the wall: Wet the original wall and save effort when shovelling.
2. Shovel the wall skin: Remove the part of the original wall that has been soaked in water until the cement mortar wall or putty layer is exposed.
3. Interface agent: When the wall is painted with interface agent, the interface agent must be brushed all over, and it should be brushed evenly.
4. Cracks: under normal circumstances, use kraft paper tape and white latex to stick to the cracks (but there is no guarantee that 100% will not crack again).
5. Leveling: The uneven wall needs to be leveled. Generally, plaster is more commonly used, and the difference between the unevenness and the unevenness is preferably not more than 0.5 cm.
6. Patching: Generally, non-load-bearing walls such as light-weight walls and thermal insulation walls need to be patched. Try to choose wall coverings and white latex with better texture. If conditions permit, you can use mesh cloth, and the relative anti-crack effect will be better. Better yet.
7. Batch scraping putty: It is better to choose putty with higher particle fineness and harder texture. You can also add a certain amount of white latex to the putty to improve the hardness of the putty.
8. Grinding: Use finer sandpaper as much as possible, generally softer putty (such as 821), use 400-500 sandpaper, and hard texture (such as wall lining, easy to flatten) use No. 360-400 is better. If the sandpaper is too thick, it will leave deep sand marks that cannot be covered by paint. After grinding, be sure to clean the wall thoroughly to avoid too much dust and affect the adhesion of the paint. The difference in unevenness is not more than 3 mm.
9. Primer: The primer must be brushed evenly to ensure that every part of the wall is brushed. If the wall has a large amount of paint, it is best to add a little more water to the primer to ensure that it can be painted evenly. Don't think that just because it is a primer, you can use a roller that is almost the same as the topcoat. The brushing effect of the primer will directly affect the effect of the topcoat. Use a roller with the same texture as the topcoat.
10. Find repairs: After the putty is polished, there will be some flaws (pit holes), which are generally difficult to see. It will only be obvious after brushing the paint once. At this time, you need to find repairs. Note that the repairs must be smoothed and smoothed. , and then use a primer with a little more water to brush it again, so as to avoid color difference when brushing the topcoat due to the difference in the draft with other walls.
11. Topcoat: Do not add excessive water, it will affect the thickness of the paint film, the feel and the hardness of the paint film. Try to choose a better tool. The hair of the roller should not be too short, but it must be thin, so that the paint film that is brushed out will be fine. It will feel delicate. When painting, pay attention to the corners, the indirect stubble in the middle of each roll, the direction of painting, and the treatment of the corners. In most cases, brushing is done with a row pen or a board brush, which will easily cause the corner texture to be inconsistent with the entire surface. Visually There will be differences. If you have the conditions, you can buy an edge-closing roller. After the edges and corners are painted with a board, use the edge-closing roller to collect it again. Note that the material of the edge-closing roller should be the same as that of the large-faced roller. Brush the large-faced roller. At the same time, the paint on the stubble area must be collected evenly, neither too thick nor too thin, otherwise the reflection will be inconsistent due to the uneven thickness. When painting, there will be a paint collection action after each roll on the wall, which requires The direction of each roll of paint should be consistent, otherwise the texture of each roll will be inconsistent, the angle of reflection will be different, and there will be differences in vision. (Suggestion: buy a tray before painting, which will be sold in the store. Using a tray can ensure that every time you apply a roll, the paint on the roller is the same, so that it will be painted evenly.)
12. Maintenance: The latex paint will dry within 4 hours after painting, but the dried paint film has not reached a certain hardness. This requires care. It is very simple. There should be no scrubbing or any contact with the wall within 7-10 days. face action.