What is double-sided tape? What types of double-sided tape are there? What are the characteristics? How to choose?

What is double sided tape?

The main purpose of double sided tape is to paste the surfaces (contact surfaces) of two objects together. According to actual requirements, it can be divided into temporary fixation and permanent bonding. Double sided tape is a roll-shaped adhesive tape made of paper, cloth, film, foam, etc., and the adhesive is evenly coated on both sides of the above-mentioned substrate. Paper (release film) consists of three parts. Depending on the substrate, some substrates require surface preparation prior to application.

Due to the wide selection of substrates and adhesives and the ability to carry out different combinations, there are more types of double sided tapes than other types of tapes.

Overview of classification and characteristics of double sided adhesive tape:

1. PET substrate double sided adhesive: good temperature resistance, strong shear resistance, generally long-term temperature resistance 100-125 ° C, short-term temperature resistance 150-200 ° C, thickness is generally 0.048-0.2MM, suitable for nameplates, Bonding of LCD, decorations and decorative parts.

2. Non-woven substrate double sided adhesive: good viscosity and processability, generally long-term temperature resistance 70-80 ℃, short-term temperature resistance 100-120 ℃, thickness is generally 0.08-0.15MM, suitable for nameplates, plastics Laminating, automotive, mobile phone, electrical appliances, sponge, rubber, signs, paper products, toys and other industries, assembly of home appliances and electronic instrument parts, display lenses.

3. Double sided adhesive without base material: it has excellent bonding effect, can prevent falling off and excellent waterproof performance, good processability, good temperature resistance, short-term temperature resistance of 204-230 °C, general long-term temperature resistance of 120-145 °C , the thickness is generally 0.05-0.13MM, suitable for the bonding of nameplates, panels, and decorative parts.

4. Foam double sided adhesive: refers to a double sided adhesive that is coated with a strong acrylic adhesive on both sides of the foamed cotton substrate, and then covered with release paper or film on one side. If both sides are covered with release Type paper or release film is called sandwich double sided adhesive paper, and the sandwich double sided adhesive is made mainly for the convenience of double-sided adhesive punching. Foam double sided adhesive has the characteristics of strong adhesion, good retention, good waterproof performance, strong temperature resistance, and strong UV protection ability. Foam base materials are divided into: EVA foam, PE foam, PU foam, acrylic foam and high foam. The glue system is divided into: oil glue, hot melt glue, rubber and acrylic glue.

4. Hot melt adhesive film: has good consistency, uniform bonding thickness, does not contain solvents, is easy to process, has good adhesion to many objects, the thickness is 0.1MM, the color is translucent/amber, hot The melting temperature is 116-123°C. It is suitable for the bonding of nameplates, plastics, and hardware. Good results can also be obtained by bonding on uneven surfaces. The recommended initial bonding conditions are: temperature 132-138°C, bonding time 1-2 seconds, pressure 10 -20 psi.

How to choose double sided tape?

Speaking of double sided adhesive brands, there are many on the market, but double sided adhesive brands with good reputation and guaranteed products still need to be carefully compared to determine. The same is true when choosing double sided tape. You need to shop around and choose a double-sided tape with guaranteed quality and environmental protection according to your own needs, so that you can use it with more confidence!

There are many types of double-sided tapes and a wide range of applications, but because each type of double sided tape uses different adhesive materials, each type of adhesive is used in different fields. The so-called technical industry has specialization. Therefore, when purchasing double-sided tape, you must not only choose the brand, but also choose according to the function you use!

Double sided tape is a very practical invention in modern society, whether it is mobile phones, computers, etc. in the electronic market, or decorative strips, parts, etc. in the automotive market, and then to hooks, furniture, toys, etc. in the home market, double sided adhesive tape all play an irreplaceable role.