AB Glue and How to Apply Properly
When it comes to adhesives, AB glue or 2K adhesives have become a popular choice for a variety of applications. This type of adhesive is composed of two components: a base component and a harden component. When these two components are mixed, they form a chemical reaction that causes the adhesive to cure or harden. And while AB glue offers many benefits, it can also be difficult to work with if you don't know its features or how to properly apply them.
AB glue is known for its strong bonding strength and durability. Cured AB glue has excellent electrical and physical qualities, such as high insulation, compressive resistance, and low shrinkage. They are also resistant to water and oil, making them ideal for a variety of applications.
AB Glue Advantages
AB glue is known for its strong bonding strength and durability. Cured AB glue has excellent electrical and physical qualities, such as high insulation, compressive resistance, and low shrinkage. They are also resistant to water and oil, making them ideal for a variety of applications. Here are some examples of AB glue applications:
Another benefit of using AB glue is that it has a fast curing speed under the normal temperature. And you can further improve it by heating the glue to a certain range of temperature.
AB Glue Types and Comparison
There are quite a few different types of AB glue, each with its unique benefits. Here are 4 of the most common types of ab glue and their advantages:
Epoxy AB Glue
Epoxy is one of the most popular types of AB glue, due to its high strength and durability. The main material of epoxy AB glues is epoxy resin. Mostly, they are colorless or transparent. Compared to acrylic glues, they are harder but less tough. Epoxy is also resistant to chemicals and heat, making it a great choice for industrial bonding. But its bonding performance could be affected by the temperature. In addition to good bonding performance, epoxy resin AB glue can also be used for potting or encapsulating, especially for the potting of electronic parts or LED lamps with high sealing requirements.
Applications: Bonding of metal, wood, ceramic, marble, ABS, PVC, and glass. Potting or encapsulating electronic parts and LED lamps.
Acrylic AB Glue
Acrylic AB glue is another popular strong glue with a fast curing speed. Compared to epoxy, it got a much wider temperature tolerance, better impact resistance, and vibration resistance. Acrylic glue is also resistant to UV light and chemicals, which fits outdoor projects perfectly. However, the smell is considerably greater than epoxy resin AB glue. Also, it doesn't work well with materials like copper, plated cadmium, PP, PE, and Teflon. The most common mixing ratio is 1:1.
Applications: Bonding for metal, hard plastic, wood, and ceramic.
Polyurethane (PU) AB Glue
As the performance can be adjusted, PU AB glue becomes a versatile type for a variety of applications. The outstanding low-temperature resistance also makes it excels in many cold environments. The disadvantages will be its relatively poorer resistance to high temperature and the cured PU glue may not be as even as other glue.
Applications: Bonding of metal, hard plastic, wood, and ceramic. Potting of electronic components.
Silicone AB Glue
Silicone AB glue: The main raw material is silicone rubber, which can conduct heat and has good insulation and sealing performance. It is mainly used for encapsulation of LED modules and electronic parts, etc. Cured Silicone AB glue is soft and flexible, so it can relieve most of the mechanical strain and provide vibration protection. The chemical and physical properties of silicone AB glue are consistent, with excellent high- and low-temperature resistance ranging from -50 to 200°C. The mixing ratio is not fixed, there are 10:1, 2:1, 1:1, etc.
Applications: Potting or encapsulating electronic parts and LED modules.
领英推荐
When choosing the right type of ab glue for your project, it is important to consider the specific needs of your project. Each type of ab glue has its advantages and disadvantages, so be sure to choose the one that is best suited for your particular project.
Why use a glue dispensing machine to apply AB glue
To achieve the best performance, the 2 components of the AB glue should be mixed perfectly with a certain ratio. So when it comes to applying AB glue, it is best to use an AB glue dispensing machine. This is because AB glue dispensing machines are specially designed for mixing the two components evenly and precisely, which is difficult to do by hand. The AB dispensing machine consists of three major parts: the two-components storage systems, the two-components dispensing valve(dynamic or static), and the mixing pipe. Inside the mixing pipe, there is a stirring pole to mix the two components of glue evenly.
Secondly, AB glue dispensing machines can also be equipped with a cooling device to delay the curing time of the glue. This is important because the chemical reaction of the AB glue mixture will generate heat, speeding up the curing. And if the glue cures too quickly, it will not have enough time to bond properly and will result in a poor connection.
Thirdly, glue dispensing machines can dispense the glue much faster than you could do it by hand, meaning that you'll be able to complete your project more quickly.
Finally, using a machine can help to reduce the amount of waste and mess associated with applying ab glue manually. By avoiding drips and runs, you'll be able to use less glue overall, and will save yourself time and hassle in the cleanup process.
Attentions when applying AB glues
AB glue will start to cure after mixing, its viscosity will rise quickly, and it will also generate heat, accelerating the process.
AB glue has a fast curing speed, the amount of applied glue should be well controlled each time. The mixed glue should be used up as soon as possible. This could be easily solved by the tailored automated dispensing system.
A small group of people may have mild skin allergies and mild itching after contacting the AB glue. It is recommended to wear protective gloves when using them. If it sticks to the skin, wipe it off with acetone or alcohol, and clean it with detergent.
The mixing process of Ab glue is very important. If it is not done well, the curing will be uneven, or it will generate large air bubbles. The best practice is to follow the glue manufacturer's instructions and also give some trials to find the best mixing ratio.
How to store AB glue properly.
When it comes to storing AB glue, it is important to follow the proper methods to keep the adhesive working properly. Here are a few tips on how to store AB glue:
- Keep the adhesive in a cool, dry place. This will help to keep the adhesive from curing prematurely.
- When the temperature is below 5 °C, do not open the package. Because the AB glue will be frozen and set at low temperatures and once the temperature turns higher, the glue will be soft again. These changes in the structure of ab glue will have an impact on its performance.
- To avoid dust, moisture, and other contaminants in the air from entering the packaging bottle and contaminating the AB glue, it must be properly sealed.
- Store the adhesive in its original container. If you need to transfer the adhesive to another container, be sure to use one that is clean and dry.
- It is strictly forbidden to return unused AB glue to the original packaging. The impurity components brought in will react with the AB glue, and the entire packaging of glue could be affected.
By following these tips, you can be sure that your AB glue will last for a long time and will be ready to use when you need it.
Conclusion
AB glue is a two-component adhesive that is used for a variety of purposes. It has a fast curing speed special curing requirements, so it's important to apply it correctly. In this article, we've introduced its different types and advantages accordingly. We also explained why use AB glue dispensing machines to apply the adhesive. Lastly, we discussed how to store ab glue properly to keep it from curing prematurely. If you find it useful, kindly leave a like or comment. It motivated me to keep writing more.
Business Director
2 年Interesting ??
Very useful and informative????
Robotics Trainer & Developer || STEAM Educator
2 年Very informative and useful