FAQs

FAQs

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Q
Using adhesives to bond different substances may seem magical, but what are the essentials

For an adhesive to accomplish the task of bonding, it must have the following two functions: 
1. It must
beabletoperforming “wetting” adequately on the materials to be bonded.
2. It must be able to form “curing” or “hardening”.

Thus, “wetting” and “curing” are the basic essentials of a successful adhesion.
In order to achieve the wetting effect on the materials, the adhesive must be liquefied during its contact with the materials.

Q
Post-curing time is often seen in information on adhesives; what exactly is “post-curing t

Post-curing time refers to “the time required for the close linking of high polymers”. That is to say, the post-curing time for a high polymer to coincide with a higher polymer quantity, or the time required for it to turn into a net-like or tree-like structure is different based on the distinct properties of resins.

Solvent-based adhesives require 5~7 days, while epoxy resins need about 7 days. Certain moisture hardening types or PU series may take up to 30 days. However, this refers to the time required for the electrical characteristic or physical property to fully develop, so it may take only one day or a few hours after the actual bonding to achieve the practical strength.

Q
What is viscosity?

Viscosity, also known as thickness, is the sum of frictions in matters. It is the liquidity indicator of fluids. Using cp (Centipoise) as the calculation unit, a fluid with lower viscosity means it is easier to flow.

Q
How do you explain the term thixotropic that often appear in adhesives?

Thixotropic refers to the situation where a matter turns from a gel state or high viscous state into a liquid with high fluidity when applied with mechanical agitation strength under a certain temperature.
General adhesives are designed so to adapt to the request for non-sagging made by some construction sites, which also wish the viscosity is not too high for easy construction, thus glue manufacturers use additives to achieve such property. When you encounter some glue with this type of characteristic, you just have to agitate it for a while for it to have better liquidity.

Q
How do you explain flash point and ignition point?

Flash Point
Flash point refers to the temperature that can be ignited with an ignition source. To test the flash point of a material, simply heat it to a certain temperature that can be ignited with a source and the temperature at which the fire goes out instantly is the flash point.

Ignition Point
Ignition point, or fire point, refers the temperature that a material under test can burn on its own when heated slowly in air or oxygen. That is to say, the temperature of a flash point needs an ignition source to burn, while an ignition point only requires for the ambient temperature to reach its specific temperature for the object to burn on its own, with or without an ignition source. These two temperatures are very important to the transportation and storage of organic chemicals.

Q
What is the structural strength of adhesives?

The most common definition is: when a material is destroyed by force after bonding, however, the part destroyed is not the bonding but the material itself, or the shear strength can exceed over 100kg/cm even though the bonding separates, such strength that can withstand certain structural requirements is referred to as structural strength. For general applications, reactive epoxy, acrylic resin, two-component or reactive PU are more likely to reach structural strength.

Q
What are open time and setting time?

Compared to “wetting” and “curing”, i.e. the basic essentials for successful bonding, “open time” and “setting time” are the time factors of “wetting” and “hardening”. Hence, the “open time” and “setting time” of adhesives can be defined as follows:

Open Time:
During the process of applying an adhesive onto two materials and their bonding, the time required for the effective “wetting” of the adhesive on the two materials.

Setting Time
The time required for an adhesive to reach the effective initial strength after bonding. Effective initial strength is the strength required for two materials to remain glued together while external force is not applied after the “curing” of the adhesive.

Q
What adhesive products are provided by Text Year? What are the application scopes of these

Text Year manufactures and markets various types of adhesives.

UV hardening adhesive and coating, acrylic structural adhesive (green & red glue), special epoxy resin adhesive (AB glue), various types of hot melt adhesives, super glue; for specific functional adhesives, Text Year is the distributor for well-known foreign brands, such as Denka’s HARDLOC, TOYOBO, Nogawa Chemical’s DIABOND, HumiSeal, TAG, etc.

Adhesives are applied in various professions and industrial organizations, including electronics, electrical machinery, photoelectricity, optics, cars and motorcycles, rubber and plastic, metal, sporting equipment, speakers, toys, carpentry, etc.

Text Year has over forty years of experience in manufacturing and marketing of adhesives. It also has strong R&D teams to provide customer service and meet customer requirements at all times.

Please contact us for more information
TEL: +886-2-2299-2121
ext.1385 Mr. Zhong

Q
What does Text Year recommend as adhesive aolutions for various types of bonding materials

1. For materials that are difficult to bond, such as PE, PP or rubber, clients can choose pressure sensitive adhesives.
2. For metal materials, two-component acrylic adhesives or epoxy resins can be used for bonding. These adhesives can reach structural bonding, e.g. magnet and galvanized iron of a speaker, stainless steel plate and framework of an elevator.
6. For plastic materials, hot melt adhesives can be used for bonding if under normal strength requirement, while two-component AB glues can be selected under demand for high strength.
7. For assembly of optical lenses, UV curing adhesives or epoxy resins can be selected for meeting technical requirements.

Text Year has over forty years of experience in manufacturing and marketing of adhesives. It also has strong R&D teams to provide customer service and meet customer requirements at all times.

Please contact us for more information
TEL: +886-2-2299-2121
ext.1385 Mr. Zhong

Q
What does Text Year recommend regarding the different strength or temperature tolerance re

1. For the requirement of high temperature resistance, clients can choose two-component acrylic or epoxy resin adhesives that can withstand over 100℃.
2. UL hot melt adhesive with a flame retardant rating of 94V-0 is quite effective on the bonding of PCB and copper wire materials.
3. For high and low temperature cycling tests, the two-component AB glue can meet customers’ requirements.
4. For resistance against high temperatures over 300℃, Text Year offers inorganic adhesives to meet customers’ requirements.

Text Year has over forty years of experience in manufacturing and marketing of adhesives. It also has strong R&D teams to provide customer service and meet customer requirements at all times.

Please contact us for more information
TEL: +886-2-2299-2121
ext.1385 Mr. Zhong
PRODUCTBRANDS
DENKA Co., Ltd.
TOYOBO Co., Ltd.
Chase Specialty Coatings
NOGAWA CHEMICAL Co., Ltd.
TAG Co., Ltd.
DAIKIN Co., Ltd.
KONISHI Co., Ltd.
SUNECON Co., Ltd.
OSHIKA Co., Ltd.
TOAGOSEI Co., Ltd.
UV Curable Adhesive
Epoxy Resin
2-Part Acrylic Adhesive
Cyanoacrylate

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