What is Hotmelt Adhesive? Outstanding Advantages of Hot Melt

Hotmelt adhesive is essentially a thermoplastic-based adhesive that exists in a solid state at room temperature. When used, it must be heated to a suitable temperature, at which point it melts into a liquid that can be applied directly to products with extremely high bonding strength.

What is hotmelt adhesive?

Hotmelt adhesive, also known as thermal glue or hot melt glue, is a thermoplastic-based adhesive. At room temperature, it exists in a solid state with various shapes such as glue sticks, pellets, granules, blocks, cakes, etc.

Users need to use specialized heating equipment to melt the adhesive from a solid state into a liquid state. Then, the adhesive is applied to the material surface manually or via automatic/semi-automatic equipment. At this time, the adhesive wets the surface, cools down, returns to its original state, and creates a durable bond between the material surfaces.

Most Popular Types of Hotmelt Adhesives on the Market

Depending on different material surfaces, the most suitable hotmelt adhesive should be selected. Currently, there are 4 popular types of thermal glue on the market:

• Ethylene-vinyl acetate (EVA) hot melt adhesive: Glue sticks and pellets.
• Polyolefin (PO) hot melt adhesive: Granules.
• Pressure Sensitive Adhesive (PSA): Blocks.
• Polyurethane (PUR) hotmelt adhesive: Blocks and tubes.

What are the Outstanding Advantages of Hotmelt Adhesives?

Hot melt adhesive is a flexible adhesive in hot or humid environments. It can withstand ideal thermal effects for rigid materials. In addition, this hotmelt adhesive line also possesses many other prominent advantages regarding strong bonding capability, long-term durability, and high aesthetics.

• When heated to an appropriate temperature, hotmelt adhesive melts into a liquid. It is then applied to the application surface for a short time before solidifying again to create a perfect bond.
• During solidification, the adhesive reacts with moisture in the air or with catalysts to produce a substance with high adhesive strength and good load-bearing capacity.
• The adhesive can bond materials made from various substances in hot or humid environments, even hard-to-bond and highly flexible materials.
• Fast bonding capability with all materials and easy usage for automatic machines. Diverse dispensing methods such as rollers, wheels, or nozzles and sprays.
• Simple and easy application process without the need to mix any other solvents. This minimizes environmental pollution, ensures health safety, and improves production productivity.
• The thermal glue application process utilizes automatic machines quickly for large quantities, maximizing labor cost savings.
• Hotmelt granule hot melt adhesive also has a long shelf life, making storage and preservation easy.

See more: Wood Adhesive

Applications of Hotmelt Adhesives

Possessing the outstanding advantages mentioned above, hotmelt adhesives are not only widely applied in industrial manufacturing but also popular in commercial and civil sectors. Using thermal glue gradually replaces traditional adhesive tape methods, helping to increase labor productivity while ensuring optimal aesthetics.

• Widely applied in industrial production of foam mattresses, wood furniture manufacturing, MDF and HDF wood bonding, automotive assembly, etc.

• Used in carton box sealing, goods packaging, flexible packaging, cosmetics, and food such as confectionery, beer boxes, soft drink cartons, etc.

• Used in the production industry of paper diapers, sanitary napkins, wet wipe lid sealing, etc.

• Packaging printing industry, frame wrapping, bookbinding, labeling, etc.

Learn About Hotmelt Adhesive Technical Specifications

Important technical parameters in the production and application of hot melt adhesives are viscosity, softening point, open time, and set time.

Viscosity

The viscosity of hotmelt adhesive can range from several hundred centipoise to tens of thousands of centipoise (mPa.s). Low viscosity is suitable for methods like spraying or laminating. The higher the viscosity, the more difficult it is to process, and the application method is mainly using rollers.

Softening Point

At this softening point, the thermal glue begins to transition its physical state from the elastic region to the molten region. This is considered an important factor for selecting compatible adhesives for heat-resistant applications.

Open Time

Open time is the period from when the adhesive is applied to the material surface until it achieves perfect adhesion.

Set Time

Set time is the time required for two surfaces to form a bond together while generating the required adhesive strength. Many factors affect open time and set time, including temperature, bonding surface, adhesive type, and the amount of adhesive applied to the surface.

See more: Epoxy Resin Adhesive

Reputable and High-Quality Hotmelt Adhesive Supplier

With over 25 years of operation in providing industrial adhesive products, TECHBOND is confident in delivering top-quality product lines to customers. When purchasing hotmelt adhesives from Techbond, customers are guaranteed product quality along with the most satisfying shopping service experiences.

Strict Quality Control System

Hotmelt adhesives are manufactured under modern technological lines with an experienced QC team, ensuring products are strictly controlled and quality-assured before reaching customers.

Diverse Product Supply

Hotmelt adhesives at Techbond are customized with diverse technical parameters suitable for each customer’s requirements across various fields and applications. In addition, Techbond offers a diverse range of adhesives and builds brand presence in many regional countries. Therefore, you can rest assured experiencing our products.

Reasonable Cost

Hotmelt adhesives at TECHBOND range in price from 58,000 to 130,000 VND/kg. We are committed to providing products at reasonable market prices. Besides, efficiently developed adhesive products help reduce adhesive consumption per application, minimize downtime (waiting time), and lower maintenance costs.

Fast Transportation and Delivery Policy

With a professional workflow, we are committed to delivering products directly to customers within 2–3 days, ensuring no disruption to your construction and production processes.

See more: Paper and Packaging Adhesive

In the above article, TECHBOND MDF Vietnam has shared useful information regarding hotmelt adhesives as well as the product’s advantages and uses. If you have a demand for high-quality thermal glue, please contact us directly via the information below.

• Website: https://techbond.com.vn/
• Hotline: 0866.15.37.68
• Email: info@techbond.com.vn.