- Main keywords: EVA hot melt, EVA hot melt adhesive, EVA hot melt glue
- Secondary keywords: hot melt adhesive manufacturer, industrial hot melt glue, EVA glue sticks, PUR hot melt, hot melt adhesive supplier China
EVA Hot Melt Adhesive — Engineered by LUYAO
Shanghai LUYAO Industry Co., Ltd. is a professional manufacturer of industrial hot melt adhesives, with EVA hot melt as our core product line. Under the LUYAO brand, we supply thermoplastic bonding solutions to packaging, woodworking, bookbinding, mattress, filtration and hygiene producers across more than 40 countries.
EVA hot melt adhesive (ethylene-vinyl acetate copolymer hot melt) is a 100% solid, solvent-free thermoplastic adhesive that melts on heating and sets rapidly on cooling. Because it contains no water and no solvent, EVA hot melt does not lose thickness during curing, does not shrink after drying, and offers a long shelf life with no extended drying time — making it one of the most efficient and environmentally friendly adhesives in modern manufacturing.
Experience note from LUYAO’s production floor: on a typical 120 m/min carton sealing line, a properly formulated EVA hot melt sets within 1–3 seconds — which is why EVA remains the workhorse adhesive for high-speed automated lines worldwide.
What Is Hot Melt Adhesive? (And Where EVA Fits In)
Hot melt adhesive (HMA) is a thermoplastic, 100% solid adhesive applied in molten form. Compared with solvent-based glues, hot melt adhesives are:
- Solvent-free and non-toxic — the most eco-friendly category of industrial adhesives
- Easy to transport and store — solid form, no flammable solvents
- Fast bonding, high strength — typical set time 1–10 seconds
- No shrinkage after drying, no thickness loss during solidification
- Long shelf life, no long drying or curing cycle required
Main Types of Hot Melt Adhesive (by Formulation)
| Type | Base Polymer | Key Feature | Typical Use |
|---|---|---|---|
| EVA hot melt | Ethylene-Vinyl Acetate | Cost-effective, fast set, broad substrate range | Packaging, bookbinding, woodworking |
| TPR / Rubber hot melt (PSA) | Rubber-based | Pressure-sensitive, permanent tack | Labels, tapes, hygiene |
| APAO / Polyolefin | Amorphous polyalphaolefin | High heat & flexibility | Profile wrapping, automotive |
| Polyamide (PA) | Polyamide resin | High heat resistance | Electronics, footwear |
| mPO Metallocene | Metallocene polyolefin | Best thermal stability | High-end packaging |
| PUR hot melt | Reactive polyurethane | Moisture-cure, structural strength | Edgebanding, automotive |
Among these, EVA hot melt adhesive is the most widely used thanks to its balance of performance, processability and cost — which is why LUYAO has focused on EVA as our flagship category.
Why Choose LUYAO EVA Hot Melt Adhesive
With deep experience in adhesive manufacturing, Shanghai LUYAO Industry Co., Ltd. develops EVA hot melt products specifically engineered for automated, high-speed production lines. LUYAO adhesives deliver stable melt viscosity, strong bonding strength and reliable processing behavior — helping manufacturers improve efficiency and maintain consistent product quality batch after batch.
Advantages of LUYAO EVA Hot Melt Adhesive
1. Fast Processing Speed LUYAO EVA hot melt adhesives solidify within seconds after application, enabling higher line speeds and shorter cycle times. Ideal for carton sealing, case erecting, and high-speed bookbinding.
2. Strong Bonding Strength Excellent adhesion to a wide variety of substrates — wood, paper, cardboard, plastic, foam, textiles, rubber, ceramic, glass and metal. EVA hot melt bonds porous and semi-porous materials especially well.
3. Eco-Friendly and Solvent-Free 100% solid formulation, no VOC, no solvent emission. Helps customers meet REACH, RoHS and modern environmental compliance requirements.
4. Excellent Durability Good resistance to moisture, temperature variation and common chemicals.
4. Excellent Durability LUYAO EVA hot melt adhesive shows good resistance to moisture, temperature variation and common chemicals. Our standard grades remain stable up to 80°C service temperature, while modified EVA formulations can be engineered for higher heat resistance on demand.
5. Flexible Processing Window Viscosity and open time of LUYAO EVA hot melt can be adjusted through temperature control and formulation tuning — from 900 to 3,000 cPs at 350°F (177°C) — making our adhesives adaptable to packaging lines, edgebanders, perfect binders, labelers and filter assembly machines.
6. Over a Decade of Manufacturing Know-How Shanghai LUYAO Industry Co., Ltd. operates its own R&D lab and pilot line. Every batch of LUYAO EVA hot melt adhesive is tested for viscosity, softening point, open time, set time and peel strength before shipment — ensuring lot-to-lot consistency that automated lines demand.
What Is EVA Hot Melt Adhesive Used For?
LUYAO EVA hot melt adhesive is engineered for a broad range of industrial bonding applications:
- Packaging — carton sealing, case erecting, tray forming, paper bag handle attachment, labeling
- Bookbinding — perfect binding, spine gluing, side gluing on rotary and high-speed binders
- Furniture & Woodworking — edgebanding, profile wrapping, MDF panel assembly, veneer lamination
- Mattress Manufacturing — spring cover bonding, foam-to-foam, comfort layer lamination
- Textile & Footwear — fabric-to-foam bonding, insole and outsole assembly
- Filtration — air filter, HVAC filter, automotive filter end-cap and pleat bonding
- Hygiene Products — baby diaper construction, feminine care, adult incontinence
- Straw Attachment — Tetra Pak® and aseptic beverage carton straw bonding
- Electronics & Assembly — temporary fixing, fast assembly, cable insulation
The combination of flexibility, fast set time and broad substrate compatibility is why EVA hot melt remains the first choice for high-speed production lines worldwide.
How LUYAO Manufactures EVA Hot Melt Adhesive
LUYAO EVA hot melt adhesive is formulated by precision blending of four core ingredient families:
| Component | Function |
|---|---|
| EVA copolymer | Base polymer — provides flexibility, cohesion and substrate adhesion |
| Tackifier resin | Improves wetting, initial tack and adhesion to specific substrates |
| Wax | Controls open time, set speed and melt viscosity |
| Antioxidant | Protects against thermal degradation, extends tank life and shelf life |
These components are melted and blended at 150–180°C in our reactor system, then extruded and cooled into the customer’s preferred format: blocks, pillows, pellets, slats, granules, or glue sticks.
LUYAO Expertise Note: The vinyl acetate (VA) content of the EVA copolymer is the single most important variable. Low-VA grades (18–28%) give stiffer bonds suited to packaging. Mid-VA grades (28–33%) balance flexibility and strength — ideal for bookbinding. High-VA grades (33–40%) offer maximum flexibility for textile and hygiene applications. LUYAO formulates across the full VA range.
Technical Properties of LUYAO EVA Hot Melt Adhesive
| Property | Typical Range |
|---|---|
| Viscosity | 900 – 3,000 cPs @ 177°C (350°F) |
| Softening Point | 75 – 105°C |
| Open Time | 5 – 60 seconds (formulation-dependent) |
| Set Time | Under 10 seconds |
| Application Temperature | 160 – 180°C |
| Service Temperature | -20°C to +80°C |
| Color | Off-white, yellow, amber, black, or transparent |
| Form | Block, pillow, pellet, slat, granule, glue stick |
All technical specifications above are typical; LUYAO provides full TDS (Technical Data Sheet) and SDS (Safety Data Sheet) for every product grade upon request.
EVA Hot Melt vs. PUR Hot Melt — Which Should You Choose?
This is one of the most frequent questions LUYAO receives from new customers. Here is a side-by-side comparison based on our field experience:
| Property | LUYAO EVA Hot Melt | PUR Hot Melt |
|---|---|---|
| Set Time | Very fast (1–10 sec) | Slower — needs moisture to cure |
| Bond Durability | Moderate | High (structural-grade) |
| Moisture Resistance | Low to moderate | Excellent |
| Heat Resistance | Up to 80°C | Up to 150°C |
| Cost | Lower | Higher |
| Equipment | Standard hot melt tanks & guns | Sealed PUR applicators (moisture-protected) |
| Best For | High-speed packaging, bookbinding, general assembly | Edgebanding, automotive, structural bonding |
LUYAO recommendation: Use EVA hot melt when you need fast, cost-effective, high-volume bonding. Choose PUR hot melt when long-term durability, heat resistance or moisture resistance is critical.
