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Transparent epoxy AB adhesive

 

1. What are the characteristics of transparent epoxy AB adhesive?
A: transparent epoxy AB adhesive has the characteristics of high adhesion, high strength, small shrinkage, good dielectric resistance, excellent electrical performance, wide range of application temperature and wide bonding range.


2. What are the main applications of transparent epoxy AB adhesive?
A: transparent epoxy AB adhesive can be used for self bonding of various metals and their alloys, wood, glass, handicrafts, jewelry, ceramic products, models, toys, etc., as well as the mutual bonding between these materials. It is especially suitable for the bonding, repairing and caulking of transparent objects, such as crystal products.


3. How about the curing speed of transparent epoxy AB adhesive?
Answer: transparent epoxy adhesive can gel in 5min, 35min is positioned, and the strength is reached after 1h30min. The above properties are affected by temperature.


4. Is transparent epoxy AB adhesive toxic to human body?
A: the components of transparent epoxy AB adhesive are non-toxic and slightly toxic, and do not contain volatile benzene solvents. They meet the relevant national safety standards, and normal use will not harm human health.


5. What kinds of modified epoxy adhesives are sold on the market?
A: the main varieties are: epoxy resin polysulfide rubber adhesive, epoxy resin butadiene rubber adhesive, epoxy resin nylon adhesive, epoxy resin phenolic resin adhesive, epoxy resin silicone resin adhesive, epoxy resin polyurethane adhesive, epoxy resin polyether adhesive, nano epoxy adhesive, etc.


6. Is it necessary to mix the transparent epoxy AB adhesive according to the weight ratio of component A: B strictly?
A: the density of two components a and B of transparent fast curing epoxy adhesive is basically the same. When using it, the volume of component A and component B can be observed by naked eyes. It is not necessary to measure strictly. When stirring, as long as the two glue liquid are basically mixed together.


7. Is the surface of the adhesive to be treated?
Answer: when using transparent quick fix epoxy adhesive when bonding two objects with smooth surface, it is better to grind a little into rough surface, and ensure that there is no dust and dirt, which can be directly glued and bonded. If the object is slightly greasy, a simple wipe can be used for bonding. When the oil pollution is serious, it is necessary to clean it up, grind it a little, and degrease it with solvent.


8. How to operate when bonding objects?
Answer: when bonding objects, it is better to stagger two times when they are overlapped after being glued on the surface of the two objects, so as to make the thickness of adhesive layer uniform, exhaust gas and eliminate bubbles. The epoxy adhesive containing solvent can be overlapped only after the solvent is completely volatilized or heated and dried.


9. How to operate when a large area of gluing or a large amount of gluing is needed for the bonded objects?
A: it is generally not recommended to use in large area. When large area is coated with glue or the amount of glue is large, it is not suitable to mix a large amount of glue at one time. It should be mixed in fractions and coated separately to complete the bonding within 5min to 7min.


10. What is the best time to air after coating with amine room temperature curing agent?
A: the epoxy adhesive with amine curing agent at room temperature should not be left in the air for a long time at room temperature, otherwise the shear strength will decrease obviously.


11. What should be paid attention to after mixing epoxy adhesive?
Answer: before mixing epoxy adhesive, attention should be paid to the application period, and the glue solution after mixing can not be used for bonding when the service life exceeds.


12. How to improve the performance index of epoxy adhesive?
A: for room temperature cured epoxy adhesive, if heated, the bonding strength, heat resistance and water resistance of the cured products will be improved.


13. Why can you smell a bad smell after mixing? Is it harmful to human body? Whether contact with hands or skin during operation is harmful to human health.
A: transparent quick fix epoxy adhesive will have a certain odor when it is used. This is the smell of polythiol curing agent. After mixing, the glue liquid reacts and releases heat to volatilize the odor. However, the smell is low stimulation and low toxicity. During the bonding operation, it is better to keep a good ventilation environment in the workplace. If the skin is accidentally adhered to the glue, it should be immediately washed with soap water. It should be kept out of the reach of children. Remember not to enter.


14. How to remove the cured epoxy adhesive?
A: the uncured epoxy adhesive can be wiped with absolute ethanol or acetone.


15. What kind of epoxy adhesive is not suitable for socket structure?
Answer: for the socket structure, it is not suitable to use solvent based or heat cured epoxy adhesive.


16. For the parts bonded with transparent quick fix epoxy adhesive, how to take apart the bonded parts and what method can be used to disassemble them.
A: after curing, the transparent fast curing epoxy adhesive is soaked in acetone, tetrahydrofuran, ethyl acetate and other solvents for 24h, and the adhesive layer can fall off.


17. When transparent fast curing epoxy adhesive is used for bonding operation, sometimes it is found that the curing speed is slow. What is the reason?
A: it may be caused by the low temperature at the operation site. In addition, if the amount of a and B components is too large, it may also cause this phenomenon.


18. What problems should be paid attention to when storing transparent quick fix epoxy adhesive?
Answer: the transparent quick fix epoxy adhesive should be stored away from the principle fire source or heat source in the process of storage and transportation, and should be stored in a cool and ventilated place, and should not be placed in high temperature or direct sunlight. In addition, it is not allowed to cover the rubber cap of a and B components wrongly after use, so as to avoid affecting the use.

 

19. What is the effect of bonding environment on transparent quick setting epoxy adhesive?
A: under the condition of high temperature and high humidity, the bond strength has a certain decline. When the temperature is too low, the curing speed becomes slow and the curing time is prolonged. The adhesive and the bonded material can be pre heated.