Double-sided adhesive tape is used as an intermediate medium to link two objects. If you want to choose a suitable double-sided tape for your product, you must first understand the characteristics it. This article will classify the characteristics of the double-sided tape based on the base material and viscosity of the double-sided tape, so as to screen out the double-sided tape suitable for your use.
Double-sided adhesive tapes are first divided into two categories based on their substrates, double-sided tapes without substrates and double-sided tapes with substrates. Substrate-free double-sided tape is to coat the adhesive on the release paper without any medium as the backing. Double-sided tape with substrate is based on a medium as the base, the adhesive is coated on the medium, and then separated and wound with release paper. So what kind of substrate can be used as coating medium? Commonly used substrate media include tissue paper, PET, acrylic and other media. Which double-sided tape is suitable for my product? Next, I will explain in detail.
No substrate double-sided tape
No substrate double-sided tape, as the name implies, has no intermediary medium. It is a pure film double-sided tape with anti-rebound, warpage, water resistance, and heat and temperature resistance.
No substrate double-sided tape has excellent adhesion effect, can prevent falling off and excellent waterproof performance, good processability, good temperature resistance, and easy to tear during use. The thickness is generally 0.05-0.13MM, which is suitable for bonding nameplates, panels and decorative parts.
No substrate double-sided adhesives are often complained by customers due to the shortcoming of glue overflow. During use, the glue will be pulled out, which will cause the glue spots to be raised after being attached to the product. Our factory is in order to solve this problem for customers. , A special degumming agent will be used in the cutting process of double-sided tape without substrate, so that we can ensure that the material will not overflow when cutting..
No substrate double-sided tape has the characteristics of overflowing glue. During the packaging and transportation, the packaging needs to pay attention to special packaging for collisions. Generally, bubble bags are used for packaging, and the collision markings should be made in the outer box.
The above are some of the conventional characteristics of baseless double-sided adhesives. The cost of baseless double-sided adhesives is relatively high due to the relatively thick glue coating. Customers can choose according to their own and product requirements. Our factory also has some other double-sided tapes for reference
Tissue paper double-sided tape
The process is to apply adhesive on tissue paper and then use release paper for isolation and winding.
Because the base material of tissue tape is cheaper than PET, its unit price is relatively lower than that of PET base material. Maybe you would say that no substrate is not cheaper, but when the film is produced, it is easy to cause local uneven thickness due to its fluidity, so its unit price is not low.
In the production process, if you want to connect, you can give priority to this type of tape. Because it has certain advantages in terms of cost and ease of use. There are many thicknesses of this type of adhesive to choose from. If it can meet your requirements, try to choose a thinner tape, because the thicker it means that the greater the amount of adhesive applied during production coating, the higher the cost.
Of course, tissue tape also has some disadvantages. When you need to remove it after use, it may remain on your product. Or when you use it in extreme environments, you will find that it is not strong enough. This is because the high and low temperature resistance cannot meet your requirements..
PET substrate double-sided tape
PET is the abbreviation of plastic resin film, which is made of plastic resin film as the base material, coated with adhesive on it, and then separated and wound with isolation material.
The cost is relatively high, and of course there are some such tapes that can be used in low-end products. Because PET has relatively no high permeability, the process is a bit more complicated than other types when applying adhesives.
Compared with cotton paper, PET has some advantages and disadvantages. The advantage of PET is that it is easier to remove when removed after use, and its transparency is relatively high. The disadvantage is that for the same thickness of tape, the unit price of PET is relatively high.
PET is mostly used in relatively streamlined industries in production and use, such as windows for electronic products, or windows for membrane switches, which require high transparency.
The weight of PET is relatively heavy, and the same thickness of tape may exceed other types of products when exported. So weight is also a very important product when choosing. After all, the cost of shipping or sea transportation is too high.
Other substrate double-sided tape
In addition to tissue paper and PET, there are some other substrates of double-sided tape, the common ones are foam and acrylic.
The cost of foam tape is relatively low, because of its fast rebound characteristic, it is mostly used in some places that need to be cushioned. No matter what the industry, as long as you need cushioning, you can give priority to foam tape. There are two colors, black and white are mostly common. There are also a variety of thicknesses that can be selected together
Acrylic tape has a relatively high cost, because its base material requires a higher process during production. Acrylic also has a certain degree of resilience, but it is slow rebound. But its stickiness is relatively strong. It is mostly used in the connection or buffering of some high-end products.
