How to Distinguish the Quality of Butyl Tape

May 30,2022

For the tape with color is to facilitate the marking and masking purposes, generally beige and earthy yellow is more. With the color of the tape many people think is the color of the film, in fact, the color is the color of the glue. The purity and transparency of the original film can be seen by pinching it tightly and then quickly pulling it away from the adhesive on one side.

 

The most important thing is to see the thickness of the glue. If there is no glue being pulled apart or dotted pull apart, there is a lot of impurities in this glue, and the glue has no cohesion. The second is too much water, has evaporated, at this time this tape initial adhesive force has fallen very strong, the feel to be able to distinguish.

 

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How to identify the quality of butyl tape?

 

✔️Method one

 

The yellow tape overlay on the object, the better the masking the thicker the glue, the better the quality. Tape in the appearance of the comparison, on the glue less, adulterated quality of the whole roll of tape color is very dark, pull open the tape translucency is high.

 

The color of the whole roll of good tape is not much different from the color of the tape after pulling it apart, because the good tape has a very strong masking, there is no color overlay. Adulterated quality of poor quality tape to impurities coated to the BOPP film, only the use of relatively backward direct glue way, so there are often large particles of impurities are not completely dissolved card knife situation, so the tape is often used in the lines (a place without glue). Good tape using soft cut transfer on the glue, there is no line situation (printing tape leakage of ink less printing situation with the printing machine).

 

✔️Method two

 

Another way to distinguish is to look at the surface of the tape, the tape just after the slitting into the finished product are bubbles, placed a week after the bubbles will basically dissipate, pure tincture glue surface of the tape is clean, without any white spots. Adulterated tape with impurities have a lot of irregular distribution of white dots, hand pressure does not disperse, is not the same as the bubbles.

 

Ordinary sealing packaging tape glue is acrylate glue, also known as pressure-sensitive adhesive, the main component is tincture fat.

 

Tincture is a high molecular activity material, the temperature has a certain influence on the molecular activity. The tincture content of the glue directly affects the use of the tape, many individuals believe that the hand feel sticky tape for the glue is good, in fact, this is wrong.

 

The glue determines the quality of the tape

 

The glue of the tape is good or bad in the use of two standards, one is the initial adhesive force, a holding force, the two are inversely proportional. Generally speaking, the adhesive force is less than 10 tape is the glue overcoat teaching less, generally only about 20 microns, such as stationery tape, ordinary promotional tapes.

 

The normal sealing tape initial adhesive force between 15-20, the thickness of this tape glue generally has 22-28 microns. Is in line with the standard thickness. But most of the tape on the market today are adulterated with impurities, so the thickness increases, in order to cover impurities, the glue is also mixed with color powder, so the transparent tape appears egg-yellow, light green, this tape is generally poor quality.

 

In conclusion

 

To sum up, we have been able to judge the tape from the appearance of the tape is basically good or bad, and then one of the most important conditions to distinguish between good and bad tape is not to feel the viscosity alone, because the adulterated quality of the tape in the absence of volatile initial adhesive force is very high, so to use the tape to paste objects and then quickly pull away to see the holding power, repeatedly paste a few times and then touch by hand, it is obvious that the feeling of fickle decline.

 

Adulterated tape for the glue formula is generally dissolved with gasoline and acid, so the smell is very big, regular large enterprises are dissolved with toluene, in the coating process has been evaporated by the fan.

 

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