1. To begin with, let’s take a closer look at what a primer film is and why it’s important. Among the essential tools for wallpaper installation are adhesive, rubber powder, and the primer film — one of which is the primer film. This is an odorless, transparent, environmentally friendly material that, once applied and dried on the wall, becomes a hard, protective layer. Its main purpose is to create a barrier between the wall surface and the wallpaper, preventing direct contact. In other words, it acts as a protective shield for your wallpaper.
2. Now, you might wonder why we need this primer film in the first place. Most walls where wallpaper is applied are either cement-based or painted. These surfaces can sometimes be alkaline or contain impurities, which are chemical substances. Since wallpaper is made from paper, it's vulnerable to damage over time. Experienced installers know that if you stick the wallpaper directly onto the wall without protection, it may start to yellow after just a year or so. That’s why it’s crucial to use a primer film — it helps protect the wallpaper and extend its lifespan significantly.
3. Let me explain further: Some people ask whether they can use Nippon paint, milk paint, or other types of paint for wallpapering. The answer is yes, you can apply wallpaper over these surfaces. But does that mean you don’t need the primer film? The answer is still yes — you should still apply the primer film.
Although these paints are often considered eco-friendly, they are still chemical products. Painted walls tend to be smooth and can contain high levels of alkaline substances. Even if you use a high-quality paint, there’s always a chance that it might not be ideal for long-term wallpaper adhesion. Without the primer film, the wallpaper might peel off within two years or even start to discolor. Many people regret it later. So, it’s worth investing in a small amount of primer film — it costs very little and covers more than 20 square meters. A single coat of primer film is 100 times stronger than no protection at all.
Washer
Hebei Qianmu Fastener Manufacturing Co., Ltd , https://www.qmjgjfasteners.com