Do You Really Know Anything about Sealant?

Step 1 Smell

High-quality glue is usually purchased from regular channels.

The raw materials themselves do not contain harmful substances,

No pungent taste,

The occasional slight smell is within the normal range,

Volatilization will be released rapidly during curing.

Inferior glue is affected by cost,

Usually using cheap raw materials,

The content of harmful substances is high, the smell is pungent, and the volatilization period is long.

Step 2: Shine

High quality sealant can be seen after curing the colloid luster,

Poor quality glue luster.

3. Particle impurities

High quality sealant because of its good raw material quality,

So it can be seen that its texture is delicate and uniform,

After curing, the surface of the rubber strip is smooth and flat.

Inferior sealant due to low raw materials,

And the production control is not strict,

Tiny particles, debris visible to the naked eye,

The surface of the rubber strip is also uneven after curing.

4. Curing time

After the tape is out,

By observing its surface drying, desticking and curing time,

It corresponds to the surface drying time and curing time on the corresponding national standards and product packaging construction instructions.

5. Hardness

Once the gel is fully cured,

Test the hardness of the strip by pressing it with your finger.

You can also cut the section of glue,

From the inside out to detect whether the colloid curing effect is consistent.

Step 6 Be flexible

Pull the cured gel,

The tensile force, tensile range and peel strength of the high-quality adhesive are very good.

Inferior glue vice versa.