8 Types of Hot Melt Adhesive
Different types of Hot Melt Adhesive on the market today are used in different construction and tasks. All these types have a few things in common; the most important is that they are designed and developed to reduce the amount of money and time required when using them. Companies spend significant amounts of money in developing efficient and effective industrial adhesives; therefore, it seems that there is a win-win situation for both users and manufacturers. The different types of adhesives are classified based on their composition or properties. There is also an additional classification based on the cure mechanism of the adhesive. Curing is the process of hardening the product using different methods, such as chemicals or ultraviolet light. The most common types of industrial adhesives are
1. Hot Melt
You can use cold or heat to harden and soften hot melt for your needs. Hot melt adhesives feature an excellent bonding quality and once heated can bond really fast to materials. One of the greatest advantages of the hot melt adhesives is that if the user makes any mistake during the construction, the adhesive can be easily rectified and used again.
2. Contact Spray
Contact spray allows the user to bond different items both temporarily and permanently. Spray adhesive can be used on uneven and porous surfaces, and is waterproof and transparent. Contact sprays are flexible and do not stain. They don’t damage the environment as they do not contain any chlorinated ingredients.
3. Anaerobic Adhesive
Anaerobic industrial adhesives can set without using oxygen or air, and are great for using when you need to form tight seals without the use of heat, oxygen or even light. This type of adhesive can bond numerous types of materials together such as paper, masonry, plastic, wood, rubber, glass, fabric, ceramic and elastomers.
4. Epoxy Adhesives
This is one of the most useful adhesives as it can be used on many different surfaces. Epoxy adhesives can form high strength bonds on wood, glass, metal and plastics. This type of glue can be used for a wide range of different applications. Epoxy glues have a high heat resistance and offer waterproof bonds. These adhesives are typically sold as twin formulas. The glue will not activate until you mix the resin (epoxide) with the hardener (polyamine).
5. Pressure Adhesives
These types of industrial adhesives are popular and common, since it is quite efficient and requires pressure to bond different surfaces together.
As there are many kinds of adhesives in the market, you should choose the most suitable adhesives for your needs. There are quite a number of issues that you will be obligated to consider if the right choice is to be made.
The Drying Speed
How fast you want the bond to be created is quite an important determinant of the type of adhesive to purchase. The fastest bonding adhesives are superglue and hot glue. Water-based contact cement sets immediately and takes roughly half an hour to dry. White glue and carpenter’s glue take a number of hours to dry. You will however need to wait for a full day before a silicone based adhesive dries completely.
Waterproof Abilities and Heat Resistance Properties
To create bonds that need to be waterproof you can select from a number of adhesive options. Your choices include water-based contact cement, silicone based adhesives, two-part epoxies, or superglue. Most wood adhesives don’t take too well to even relatively low amounts of moisture.
In terms of heat resistance abilities the aforementioned types of adhesives will also be most effective.
The Ease of Cleaning Up
Different adhesives offer varying degrees of cleaning ease, a factor that is dependent on their individual constitution.
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