The wild application of 3M adhesives is far beyond your imagination. You can see 3M everywhere in daily life. They can help mechanical and electronic things complete a certain bonding. There are many types of 3M adhesives that have good features, such as high temperature resistance, conductivity, acid resistance, corrosion resistance, insulation, no overflow, removable glue, strong bonding, etc..

Poor adhesion & reasons

3M adhesives have strong adhesion and good adaptability to the environment. However, it is inevitable that bad things happen. If we want to solve the problem of poor adhesion, we have to find the reasons. So let's dive in.

1. No tests before pasting

3M adhesives may not be tested before pasting due to some reasons. If they had expired in the storage environment. Failure to test would cause them to fail.

2. Out of the ideal temperature range

Although 3M maintains good adhesion in high temperature, there are some limits. If the temperature is out of the ideal range, the adhesives will fail during pasting.

In winter, the initial adhesiveness becomes weak. If the temperature is below 10 ℃, It is better to heat surface of adhesive before use. After restoring the chemical molecules of colloid to the normal state, it can achieve the best bonding effect. The ideal range of the temperature is 20-40 ℃.

3. The surface of 3M adhesive is not clean

When using 3M adhesive, check whether the surface is clean. Dust, dirt, and grease will reduce the adhesion, and cause the failures.

4. Damage by ultraviolet rays

Long-term exposure to ultraviolet rays may damage adhesive, resulting in failure during pasting.

5. Improper storage

If 3M adhesives are stored in bad environment for a long time, they will become ineffective when pasted.

6. Wrong installation

Wrong installation is bad. For example, repeated installation.

How to avoid fakes

3M adhesives are famous. There are many counterfeit and inferior products on the market. Some high-quality imitation 3M products are actually similar to real ones, but the prices are much cheaper.

When we buy 3M adhesives, it does not mean that the cheaper, the better. Here are a few tips to distinguish the real from the fake.

1. Here's something simple. Look at the outer packaging. The packaging box will usually have the sign of 3M printed on it, and the handwriting is clear.

2. Open the packaging box. Check whether there are 3M number and batch number on the paper tube inside adhesives.

3. There will be 3M logo on adhesives. For real ones, logo looks clear, while fake ones will be blurry.

4. You can judge whether it is real by the smell, but of course, you have to know the product very well to do that.

These are the initial judgment. You can also use instruments to accurately test, and get a series of accurate parameters, such as initial viscosity.