How to install plaster molding
Gypsum lines are a common decorative material in decoration, which can enhance the layering and beauty of the space. This article will introduce in detail the installation steps, precautions and related tools of plaster molding to help you complete the installation easily.
1. Preparation work before installing plaster lines

Before installing plaster moldings, you need to make the following preparations:
| Tools and Materials | Purpose |
|---|---|
| plaster lines | decorative main body |
| Gypsum powder or quick-adhesive powder | Paste and fix |
| Cutting machine or hand saw | cutting lines |
| measuring ruler, pencil | measurement mark |
| Brush, sandpaper | Clean the surface |
| spirit level | ensure level |
2. Installation steps of plaster lines
1.Measure and cut
First, use a ruler to measure the length of the wall where the plaster lines need to be installed, and mark the plaster lines. Use a cutter or hand saw to cut the plaster lines to the desired length, paying attention to the cutting angle (usually a 45-degree bevel) to ensure a natural splice.
2.wall treatment
Clean the walls to make sure they are smooth and dust-free. If the wall surface is uneven, you can fill the gaps with gypsum powder and sand it smooth after drying.
3.Paste plaster lines
Mix gypsum powder or quick-adhesive powder with water to make a paste, and apply it evenly on the back of the gypsum lines with a brush. Align the line with the wall, press firmly to fix it, and use a level to check whether it is level. Excess adhesive can be wiped off with a damp cloth.
4.Splicing processing
If the lines need to be spliced, make sure the joints fit snugly and fill the gaps with adhesive. After the adhesive dries, sand the joint to make it smooth.
5.post processing
After installation is completed, check whether the lines are firm and use nails or screws to assist in fixing if necessary. Finally, the plaster moldings can be colored or spray-painted as needed to coordinate with the overall decor.
3. Precautions
| Things to note | Description |
|---|---|
| Wall flatness | Make sure the wall surface is flat, otherwise the paste will not be firm |
| Binder ratio | Prepare according to instructions, avoid being too thin or too thick |
| Drying time | Avoid touching until adhesive is completely dry |
| Security protection | Wear goggles and a mask when cutting |
4. Frequently Asked Questions
Q: What should I do if the plaster lines crack after installation?
A: It may be caused by improper preparation of adhesive or uneven wall surface. It is recommended to refill the gaps and sand them smooth.
Q: Where can plaster lines be installed?
A: Gypsum lines are suitable for ceilings, walls, door frames, etc., but are not recommended for use in humid environments (such as bathrooms).
Q: How to clean plaster lines?
A: Wipe gently with a dry cloth or soft brush, avoid using wet cloth or chemical cleaners.
5. Conclusion
Installing plaster moldings is not complicated and can be done easily as long as you master the correct steps and precautions. I hope this article can provide you with practical help to make your home decoration more perfect!
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