Name: Adesivo reativo de poliuretano (PUR) com excelente resistência à colagem a quente
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Adesivo reativo de poliuretano (PUR) com excelente resistência à colagem a quente

Adesivo termofusível PUR é um sistema polimérico reativo que utiliza a tecnologia de cura por umidade para proporcionar uma aderência duradoura e incomparável. Inicialmente aplicado como termoplástico, ele sofre uma reação química de reticulação irreversível ao ser exposto à umidade ambiente, transformando-se em uma rede polimérica termofixa durável. Isso resulta em resistência excepcional ao calor, produtos químicos e plastificantes, proporcionando resistência à tração superior e confiabilidade a longo prazo para as aplicações industriais mais exigentes.

Item nº :
PUR Adhesive
Aplicativo :
Lamination and bonding of wood, plastic, fabric Substrates
Recurso especial :
Bond strength and durability, with outstanding resistance to heat, solvents

DESCRIÇÃO

Product Overview

Runshine New Materials (Foshan) Co., Ltd. provides high-performance polyurethane reactive (PUR) hot-melt adhesives that utilize moisture-curing chemistry to form permanent, cross-linked thermoset networks upon application. These adhesives deliver exceptional bond strength and durability, with outstanding resistance to heat, solvents, and plastics, making them ideal for demanding wood product assembly applications including furniture, cabinetry, flooring, and decorative items. We offer tailored adhesive solutions and comprehensive technical support to ensure optimal bonding performance and reliability for specialized manufacturing needs.

Types Of PUR Hot Melt Adhesive

PUR Flat Laminating Adhesive
PUR Flat Laminating Adhesive is applied to the surface of flat panel substrates, such as MDF or particleboard, to permanently bond rigid decorative laminates or veneers. Its chemistry, a moisture-curing polyurethane prepolymer, is engineered for high initial tack and excellent wetting of large, flat surfaces. Upon full cure, it forms a rigid, cross-linked polymer network that provides exceptional shear strength and resistance to thermal cycling. This adhesive is the foundation for creating dimensionally stable, high-pressure laminated panels for furniture and architectural applications.
PUR Edge Wrapping / Banding Adhesive
PUR Edge Banding / Wrapping Adhesive is specifically formulated for bonding edge banding materials, both rigid and flexible, to the profiled perimeters of panels. Its reactive hot-melt nature allows for precise application to complex contours and tight radii without stringing. The cured adhesive develops high flexibility and impact resistance, which is crucial for protecting vulnerable edges from mechanical damage. The primary function of this adhesive is to ensure a durable, seamless bond along the entire length of the wrapped profile, even on challenging substrates like PVC or ABS.
PUR Edge Bonding Adhesive
PUR Edge Bonding Adhesive is designed for high-speed bonding of edge banding to panel materials in a linear process. Its rapid setting characteristics and very low application viscosity ensure immediate contact and maximum penetration into the porous edge of the substrate, such as particleboard, forming powerful mechanical interlocking bonds. Chemically, it achieves a final cured state that is highly resistant to moisture, heat, and common cleaning agents, making it the critical component for ensuring the long-term integrity of furniture and cabinet edges in demanding environments.
PUR Honeycomb Panel Adhesive
PUR Honeycomb Panel Adhesive is engineered for the structural bonding of honeycomb core materials, typically made of paper, aluminum, or plastic, to flat facing materials like HPL, metal, or wood composite skins. Its formulation balances a long open time to allow for core placement with a final cure that yields a strong, rigid bond line. The expanded foam-like nature of the cured adhesive within the cellular structure provides exceptional cohesive strength and resistance to shear and delamination forces. This adhesive is paramount for fabricating lightweight, high-strength composite panels where stiffness and durability are paramount.

Product introduction

Our PUR hot melt adhesives deliver superior bonding performance across a wide range of temperatures and substrates, ensuring high initial tack, excellent aging resistance, and reliable operation in both high-speed and challenging environments. Designed for versatility and durability, they provide strong, bubble-free adhesion for laminating, wrapping, edgebanding, and honeycomb panel applications, making them the ideal choice for advanced industrial bonding solutions.

PUR Hot Melt
Product Category	Mode	Ambient Temp. (°C)	Viscosity	Application Temp.	Open Time /25°C	Key Characteristics	Suitable Substrates
PUR Flat Laminating Adhesive	YKM8602	20-43	6000-10000/130℃	110℃-140℃	8-15 min	Broad compatibility, excellent high-temperature resistance	MDF, decorative panels, acrylic sheets, aluminum panels, SPC panels, carbon crystal panels, etc.
	YKM8608	18-38	6000-10000/130℃	110℃-140℃	4-6 min	Excellent aging resistance, high yield, specifically effective for PET films	Wood veneer, PET film laminating
	YKM8607	0-23	6000-10000/130℃	110℃-140℃	15-25 min	Superior low-temperature performance, high yield, specifically effective for PET films	Wood veneer, PET film laminating
	YKM8611	15-35	5000-9000/130℃	110℃-140℃	20-30 min	Broad compatibility, excellent aging resistance, high yield	MDF, decorative panels, acrylic sheets, aluminum panels, SPC panels, carbon crystal panels, etc.
	YKM8613	25-40	5000-9000/130℃	110℃-140℃	10-20 min	Broad compatibility, excellent aging resistance	MDF, decorative panels, acrylic sheets, aluminum panels, SPC panels, carbon crystal panels, etc.
PUR Edge Wrapping / Banding Adhesive	YKM8722	25-43	30000-50000/130℃	110-140℃	90-150 sec	High initial tack, strong adhesion, bubble-free under high temp	Veneer, PET, CLP wrapping on high-resilience materials
	YKM8723	15-35	30000-50000/130℃	110-140℃	40-90 sec /30℃	High initial tack, wide operating range	Veneer, PET, CPL wrapping,etc.
	YKM8724.1	30-40	30000-50000/130℃	110℃-140℃	20-60 sec /30℃	High initial tack, fast positioning, high yield	CPL wrapping
	YKM8725.2	20-40	30000-50000/130℃	110℃-140℃	60-120 sec	High initial tack, strong adhesion, broad material compatibility	PVC film, PET film, veneer wrapping
	YKM8725.3	5-25	30000-50000/130℃	110℃-140℃	120-180 sec	Strong adhesion, broad material compatibility	PVC film, PET film wrapping
PUR Edge Bonding Adhesive	YKM8854	-5-20	60000-100000CPS/150℃	120℃-160℃	60-120 sec	Excellent low-temperature substrate tearing resistance, solves cold temp false tack issue	Standard substrates
	YKM8856	20-45	60000-100000CPS/150℃	120℃-160℃	5-15 sec	High initial tack for summer conditions	Standard substrates
	YKM8858	20-45	60000-100000CPS/150℃	120℃-160℃	5-15 sec	High initial tack for summer conditions, cost-effective	Standard substrates
	YKM8859	-5-20	60000-100000CPS/150℃	120℃-160℃	1-2 min	Excellent low-temperature substrate tearing resistance, cost-effective	Standard substrates
	YKM8861	10-35	60000-100000CPS/150℃	120℃-160℃	8-18 sec	High initial tack, wide temperature adaptation range	Standard substrates, aluminum honeycomb,etc.
PUR Honeycomb Panel Adhesive	YKM8861	10-35	60000-100000CPS/150℃	120℃-160℃	8-18 sec	High initial tack, wide temperature adaptation range	Honeycomb panels
PUR Honeycomb Panel Adhesive	YKM8571	10-35	40000-80000CPS/150℃	120℃-160℃	10-20 sec	Excellent substrate tear performance	Honeycomb panels

Key Features

PUR Flat Laminating Adhesive

Key Features:

• Excellent High-Temperature Resistance

• Broad Substrate Compatibility

• Superior Aging Resistance

• Moisture-Curing Mechanism

• High Bonding Strength

• Thermal Stability

• Low VOCs

• Rapid Fixture Time

• Resistance to Plasticizer Migration

• Flexibility after Curing

• Chemical Resistance

• Non-Yellowing

• Ease of Machine Processing

PUR Edge Wrapping / Banding Adhesive

Key Features:

• High Initial Tack

• Bubble-Free Bonding

• Excellent Flexibility

• Wide Operating Temperature Range

• Fast Positioning

• Strong Adhesion to Non-Porous Surfaces

• Resistance to High Temperatures

• Moisture-Curing Polyurethane Chemistry

• Suitable for Complex Profiles

• Low Stringing During Application

• Good Wetting Properties

• Durability Under Mechanical Stress

PUR Edge Bonding Adhesive

Key Features:

• Excellent Low-Temperature Performance

• High Initial Tack in Summer Conditions

• Rapid Setting Time

• Strong Tear Resistance

• Cost-Effective Formulation

• Wide Temperature Adaptation Range

• Suitable for High-Speed Applications

• Moisture-Cure Cross-Linking

• Good Gap-Filling Properties

• Resistance to Humidity and Moisture

• Compatibility with Various Edge Materials

• Minimal Shrinkage Upon Curing

PUR Edge Bonding Adhesive

Key Features:

• Excellent Low-Temperature Performance

• High Initial Tack in Summer Conditions

• Rapid Setting Time

• Strong Tear Resistance

• Cost-Effective Formulation

• Wide Temperature Adaptation Range

• Suitable for High-Speed Applications

• Moisture-Cure Cross-Linking

• Good Gap-Filling Properties

• Resistance to Humidity and Moisture

• Compatibility with Various Edge Materials

• Minimal Shrinkage Upon Curing

Applications

Engineered for industrial-grade performance, our PUR adhesives offer exceptional resistance to environmental factors, ensuring long-term structural integrity and reliability in demanding applications.

PUR Flat Laminating Adhesive

• Decorative surface lamination on MDF, particleboard, and multi-layer composite panels

• Bonding of high-pressure laminates (HPL), acrylic sheets, and aluminum composite panels

• Furniture and interior decorative panel manufacturing for both residential and commercial use

• Adhesion to SPC (Stone Plastic Composite) and carbon crystal panels in high-end applications

• PET film and wood veneer lamination for aesthetic and protective surface finishing

PUR Edge Wrapping / Banding Adhesive

• Automatic and manual edge banding of furniture, cabinets, and interior décor elements

• PVC, PET, CPL, and veneer wrapping on curved, flat, and profiled edges

• High-resilience material wrapping for automotive and architectural interior trim

• Suitable for both vertical and horizontal wrapping machines across various temperature conditions

PUR Edge Bonding Adhesive

• High-speed edge bonding in panel processing lines for furniture and construction materials

• Sealing and bonding of honeycomb structures and lightweight composite panels

• Low-temperature and high-humidity environment applications without loss of tack strength

• Durable edge sealing for worktops, doors, display panels, and modular furniture systems

PUR Honeycomb Panel Adhesive

• Structural bonding in aluminum, Nomex, and polypropylene honeycomb core panels

• Fabrication of lightweight composite panels for aviation, marine, and rail transportation interiors

• Sandwich panel production for architectural partitions, doors, and exhibition structures

• High-strength bonding between skins (e.g., aluminum, HPL, glass reinforced plastic) and core material

General Application Instructions for PUR Hot Melt Adhesives

1. Surface Preparation:

The substrate surfaces must be clean, dry, and free from dust, oil, grease, or any other contaminants that could inhibit adhesion. Proper surface preparation is critical to achieving maximum bond strength and long-term durability. For non-porous substrates, light abrasion may be necessary to ensure mechanical interlocking.

2. Adhesive Melting and Application:

The solid adhesive pellets must be melted in a thermostatically controlled, sealed melt tank to prevent premature moisture ingress and degradation. The application temperature must be strictly maintained within the specified range (typically 110-160°C). Temperatures that are too low will result in high viscosity and poor wetting, while excessive heat can cause thermal degradation of the polymer, reducing final bond performance.

3. Open Time and Assembly:

Upon application, the adhesive must be assembled within the specified open time. This is the period when the adhesive remains workable and capable of wetting the second substrate. Assembly must occur before the adhesive forms a skin or cools below its minimum wetting temperature.

4. Pressing and Curing:

Immediate pressure must be applied after assembly to ensure intimate contact between the adhesive and both substrates, and to achieve the desired bond line thickness. The initial bond strength (green strength) is developed upon cooling. The final, ultimate strength is achieved through a chemical cross-linking reaction with ambient moisture. This moisture-curing process forms irreversible urethane bonds, creating a durable, thermoset polymer network. Full cure depends on relative humidity, temperature, and bond line thickness, and may take 24-72 hours to complete.

5. Environmental Considerations:

Application should be conducted in an environment with controlled humidity and temperature. Low humidity will slow the curing reaction, while very high humidity can cause surface foaming. Adequate ventilation is required to manage any minimal isocyanate emissions during application.

Important Safety and Handling Precautions for PUR Hot Melt Adhesives

1. Moisture Sensitivity:

PUR adhesives are highly moisture-sensitive prior to application. The raw material must be stored in its original, sealed container in a cool, dry environment to prevent premature reaction with atmospheric humidity, which will cause gelation and render the product unusable.

2. Thermal Management:

Always melt the adhesive in dedicated, thermostatically controlled equipment. Avoid overheating (exceeding 160°C is not recommended for most products) to prevent thermal degradation, which can lead to a sharp increase in viscosity, discoloration, and the generation of fumes. Do not mix different adhesive types in the same tank.

3. Personal Protection (PPE):

During handling and application, operators must wear appropriate personal protective equipment, including heat-resistant gloves, safety goggles, and long-sleeved clothing to protect against potential thermal burns from hot melt. Ensure adequate ventilation or local exhaust in the application area to avoid inhalation of vapors or aerosols.

4. Isocyanate Awareness:

While cured PUR is inert, the molten adhesive contains reactive isocyanate groups. Avoid generating mists or vapors. Do not allow the adhesive to come into contact with skin or eyes. In case of contact, immediately rinse with plenty of water and seek medical attention if necessary.

5. Equipment Maintenance:

Clean application equipment regularly with specialized PUR cleaning agents before shutdowns to prevent charred residue from clogging hoses and nozzles. Never use water or steam to clean equipment containing molten PUR adhesive.

6. Substrate Compatibility:

Always verify the compatibility of the adhesive with the specific substrates to be bonded, as certain plastics or coatings may be sensitive to the application temperature or the chemistry of the adhesive, leading to substrate deformation or poor adhesion.

7. Curing Conditions:

Achieving full mechanical properties is dependent on moisture-curing. The bond should not be subjected to high mechanical loads or elevated temperatures until sufficient curing has occurred (typically 24-72 hours), which is highly dependent on ambient temperature and humidity.

TAGS QUENTES :

Adesivo reativo de poliuretano (PUR) com excelente resistência à colagem a quente

adesivo hot melt

adesivo para laminação de madeira

Adesivo de madeira PUR

Adesivo Reativo de Poliuretano

Adesivo PUR

adesivo hot melt de poliuretano

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