Pocket Spring Mattress Adhesive: EVA vs PO Hot Melt

Choosing the right pocket spring mattress adhesive helps manufacturers maintain bond quality and mattress durability. TECHBOND hot melt adhesive granules are used to bond nonwoven spring pockets during mattress production. This guide explains EVA and polyolefin options and the technical factors to check before selection.

What is pocket spring mattress adhesive?

In pocket spring mattress manufacturing, individual springs are enclosed in nonwoven fabric. The pockets are bonded together to form the mattress unit. The adhesive must bond the fabric reliably while remaining suitable for a flexible finished mattress. Hot melt adhesive granules are supplied as pellets, melted in application equipment and applied in liquid form. After cooling, the bond retains flexibility for soft materials such as nonwoven fabric.

TECHBOND adhesive for pocket spring mattresses

For this application, the Vietnamese source highlights strong adhesion, heat resistance and low emissions during use as important considerations. The pocket spring mattress adhesive grade must be matched to the line, fabric and storage conditions.

TECHBOND hot melt adhesive types for pocket springs

EVA hot melt adhesive

EVA hot melt adhesive is formulated for pocket spring production. Its key function is to bond the nonwoven fabric commonly used to wrap the springs.

• Good adhesion to nonwoven fabric.
• Low odor during application, which can improve the working environment.
• Fast setting to support production speed.
• Good initial tack to hold the fabric in place.

EVA hot melt adhesive designed for pocket spring production

Polyolefin hot melt adhesive

Polyolefin (PO) hot melt adhesive can be used in several mattress manufacturing steps, including pocket spring assembly. Its fast setting and adhesion to different substrates make it useful where the process involves more than one material.

• Fast setting after application.
• Strong adhesion to foam, felt and nonwoven fabric.
• A firm yet flexible bond that can suit mattresses rolled for transport or storage.

Polyolefin hot melt adhesive for mattress applications

How to choose adhesive for pocket spring mattresses

Compare viscosity, softening point and open time with the operating conditions of the production line. The adhesive must flow through the application equipment, remain workable long enough to assemble the pocket and then set at the required speed. Choosing the right pocket spring mattress adhesive for the actual process helps improve efficiency and the consistency of the finished mattress.

Select the adhesive grade for the mattress materials and equipment

Composition and performance

Manufacturers may compare EVA or PO hot melts with polyurethane (PU) adhesive. Hot melts are often chosen for their fast setting, straightforward application and lower odor compared with some PU systems. In certain applications, PU may provide higher durability or heat resistance. The choice depends on the mattress design and process requirements.

• Heat resistance: Consider the temperatures expected in production, transport and storage. Excessive heat can soften an unsuitable adhesive and weaken the bond.
• Application viscosity: Choose a viscosity compatible with the spray or dispensing equipment to achieve consistent application.
• Open time and setting: Match the time available for joining components to the line speed.
• Substrates: Test adhesion on the actual nonwoven fabric and other mattress materials used.

TECHBOND mattress adhesive solutions

TECHBOND manufactures and supplies industrial adhesives for applications including wood, paper, packaging, mattresses, construction and automotive production. Its internal R&D center supports product development and improvement. The company also provides technical advice to help customers select a suitable grade and use it efficiently on their production lines.

Explore related mattress adhesives, bookbinding adhesives and paper packaging adhesives. These product ranges serve different materials and processes; choose the product specification for your own application.

For advice on pocket spring mattress adhesive, contact TECHBOND with details of your fabric, application equipment, operating temperature and required production speed.

TECHBOND MFG (VIETNAM) CO., LTD.

• Address: No. 18 VSIP II-A, Street 23, Vietnam–Singapore Industrial Park II-A, Vinh Tan Ward, Tan Uyen City, Binh Duong Province, Vietnam.
• Sales hotline: 0866 15 37 68
• Email: info@techbond.com.vn

Techbond Vietnam

TECHBOND Vietnam is a leading manufacturer of industrial adhesives in Vietnam. We specialize in providing a wide range of flexibly customized adhesive products to meet the diverse requirements of our customers.