PUR for Flat Lamination | Jiwei PUR Hot Melt Adhesive

Support: Custom/OEM/Wholesale/Export of PUR flat laminating hot melt adhesives; industrial laminating hot melt adhesive supplier.

Coating Weight: 40-100g/m² (Coating weight varies based on substrate thickness and roughness).

Environmental Requirements: Optimal at 15-30°C, with air humidity maintained around 50-75%.

Flat lamination is the backbone of modern panel manufacturing — and the adhesive you choose determines whether your surfaces peel in humidity, bubble under high-gloss films, or hold flawlessly through decades of use. Jiwei's PUR for flat lamination hot melt adhesive is engineered for the full spectrum of decorative panel production: from standard PVC films on MDF to the most demanding high-gloss PETG, acrylic, and aluminum composite applications.

Product Specifications

H MProducts	Viscosity[mPas]	Operatingtemperature	Open time	Ambienttemperature
801.06-5	6500±1500cP/130°C	120~150°C	≥30min/30°C	15-35°C
801.06-3	6500±1500cP/130°C	120~150°C	≥30min/30°C	15-35°C
801.06-1	6500±1500cP/130°C	120~150°C	﹥30min	10-30°C
801.16	6500±1500cP/130°C	120~150°C	﹥30min	/
801.60	10000-13000cP/130°C	120~150°C	/	/
801.01E - 2	7000±1500 cP/130°C	120~150°C	about16±2min/30°C	25-40°C

Flat lamination is one of the oldest applications in the wood and furniture industry. Typically, it involves coating wooden substrates with various decorative materials. Laminating materials come in a wide variety, including resin decorative papers and veneers, as well as thermoplastic foils or laminates such as HPL and CPL. Wood panels laminated with decorative surface materials represent state-of-the-art technology. They find extensive use in furniture, doors, windows, and flooring industries, as well as in the construction of exhibition stands and retail fixtures.

The extremely diverse material combinations and exceptionally high quality expectations demand highly efficient adhesives.

In addition to PVAc dispersion adhesives and UF adhesives, moisture-curing PUR hot melt adhesives are increasingly becoming the preferred choice due to their excellent heat and moisture resistance. Jiwei offers a comprehensive portfolio of flat laminating adhesives to optimally meet customer requirements.

Flat lamination is widely used in the following industries:

Flat bonding of large panels – Plastic panels, wooden boards, inorganic panels, melamine (triamine) boards.

Molded door panel bonding – Used for assembling and securing door components.

WPC plastic flooring bonding – Ensures durability and adhesion in flooring applications.

Aluminum sheet bonding – Suitable for rolling or scraping application methods.

High-gloss surface bonding – Compatible with PETG, acrylic, and other decorative materials.

Plastic wall panel cladding – Used in interior and decorative applications.

Low odor

Good machine stability

Good flowability and wetting ability

High bonding strength

Good setting speed, short open time

Very good resistance to water, heat, cold and many solvents

Moderate initial adhesion, high final adhesion

Good adhesion to plastics

Usable foils in LVT,PET,PP etc.

Low dissolution temperature

High initial and final adhesion

For laminating HDF, MDF and plastic flat panels

Hygro-reactive polyurethane hot melt with low free isocyanate content

Identify the substrates to be bonded (e.g., MDF, melamine board, plywood, solid wood, chipboard, wood-plastic composite, aluminum sheet, glass-fiber reinforced magnesium board) and materials (e.g., PVC film, PET film, PP film, acrylic, leather, paper). Consult the PUR flat laminating hot melt adhesive supplier for suitable adhesive recommendations.

Set the machine's adhesive melting temperature, roller pressure, and adhesive application volume.

Feed the panels through the conveyor belt into the dust removal system to eliminate surface dust.

Apply the PUR flat laminating hot melt adhesive evenly onto the panel surface, then press the laminating material flat onto the panel.

It is recommended to let the bonded panels rest for at least 24 hours before proceeding to subsequent processing steps.

Special Focus: PUR Adhesive for High-Gloss and Super-Matt Surfaces

High-gloss PETG, acrylic, and piano-finish PVC films are the most technically demanding surfaces in flat lamination — and the fastest-growing segment of the decorative panel market as architects and furniture designers push modern aesthetics.

The challenge: conventional adhesives applied at high temperatures cause thermal rippling, micro-bubbling, and orange-peel texture that are immediately visible on reflective high-gloss surfaces. At the same time, restoring forces in rigid acrylic and PETG sheets are significantly higher than in flexible PVC films, placing more stress on the adhesive bond during the first hours after lamination.

Jiwei 801.06-1 and 801.60 are specifically formulated for these demanding surfaces:

Low processing temperature range (120–135°C application zone) — prevents thermal rippling of temperature-sensitive high-gloss foils
Excellent wetting on low-energy surfaces — bonds to PETG, acrylic, and piano-finish PVC without primer in most cases
High Shore hardness after cure — resists the restoring force of rigid decorative materials during panel stacking in the factory
Anti-stacking mark formulation — prevents panels from leaving impressions on each other during post-lamination staging

What Is PUR Flat Lamination and Why Does Adhesive Selection Matter?

Flat lamination is the process of bonding a decorative surface material — thermoplastic film, paper foil, veneer, HPL, or acrylic sheet — to the full face of a flat panel substrate such as MDF, particleboard, plywood, or aluminum composite board, using a continuous roller coater or slot nozzle laminating line.

It is one of the highest-volume bonding processes in the furniture, flooring, construction, and interior fit-out industries, producing the finished surfaces of cabinet fronts, door skins, flooring planks, wall panels, kitchen worktops, exhibition stands, and retail fixtures.

Three adhesive technologies compete in flat lamination:

PVAc dispersion adhesives — water-based, low cost, but sensitive to heat and humidity. Bond strength degrades above 50°C and in wet environments.

UF (urea-formaldehyde) adhesives — strong initial bond but brittle after curing, formaldehyde emissions, restricted in EU, North America, and increasingly in export markets.

Moisture-curing PUR hot melt adhesives — the modern standard. Applied hot as a hot melt, cures irreversibly through crosslinking with ambient moisture. Delivers heat resistance, moisture resistance, and long-term bond durability that PVAc and UF cannot match.

Jiwei's PUR for flat lamination hot melt adhesive combines the processing speed of a hot melt (instant initial tack, no clamping time) with the permanent bond quality of a reactive adhesive — and it is 100% solvent-free, formaldehyde-free, and low-VOC.

PUR Flat Laminating Hot Melt Adhesive Application Notes

PVC film requires back coating. MDF surfaces must be flat and clean. PVC-coated steel, wood-plastic composite, and acrylic sheets require surface activation treatment.

Recommended ambient temperature: 15-30°C. Heating equipment is required below 10°C.

PUR flat laminating hot melt adhesive must not come into contact with air or water vapor prior to use.

Seal the adhesive nozzle during production stoppages. If downtime exceeds one week, clean the adhesive hose and nozzle.

For perfect results: Jiwei offers innovative and powerful industrial adhesives, tailored for customers across diverse industries. Contact us for personalized service.

Q1. Why won't panels bond with materials after using PUR flat laminating hot melt adhesive?

A1. a. Bonding performed after adhesive open time has expired. b. Insufficient bonding pressure. c. Panel surface overheated prior to bonding. d. Inadequate adhesive application. e. Surface contact strength of bonding material below 38 dynes.

Q2. Why do wrinkles appear on the board surface after bonding with PUR flat laminating hot melt adhesive?

A2. a. Excessive adhesive application. b. Bonded material is too thin. c. Bonded material has excessively high tensile strength. d. Board temperature is too high. e. Material was overstretched before bonding.

Q3. Why do “bubbles” appear on the board surface after PUR flat laminating hot melt adhesive bonding?

A3. a. Uneven board surface with impurities. b. Excessively high board temperature. c. Insufficient initial tack of the adhesive. d. Excessive thickness of the bonded material. e. Insufficient adhesive application. f. Inadequate bonding pressure.

Q4. What types of PUR flat laminating hot melt adhesives exist?

A4. By substrate material: MDF, melamine board, plywood, solid wood, chipboard, wood-plastic composite, aluminum sheet, magnesium oxide board PUR flat laminating hot melt adhesives; By laminate material: PVC film, PET film, PP film, paper film, metal foil, acrylic, fire-retardant paper PUR flat laminating hot melt adhesives; By performance: High-strength, heat-resistant, durable, low-VOC, eco-friendly, low-emission PUR flat laminating hot melt adhesives.

Where to Buy PUR Flat Laminating Hot Melt Adhesive in China?

Jiwei is a high-quality PUR laminating hot melt adhesive factory, manufacturer, exporter, and supplier in China. With years of expertise in various laminating materials, we provide turnkey solutions for PUR flat laminating hot melt adhesives—whether for procurement or customization—to factories and traders. If you need to buy or customize PUR laminating hot melt adhesives, please contact our technical sales staff.