Polyurethane Adhesives PY7680

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Polyurethane Adhesives PY7680 – High-Performance Milky White Solid Polyurethane Adhesives

PeiYang Polyurethane Adhesives PY7680 is a high-performance bonding material designed for demanding industrial and optical applications. As a type of milky white solid polyurethane adhesives, PY7680 delivers excellent adhesion strength, durability, and environmental resistance, making it suitable for a wide range of substrates including plastics, metals, glass, and composite materials.

Engineered for stable processing and long-term reliability, this product is ideal for manufacturers seeking consistent bonding performance in precision assembly and industrial production environments.

What Makes PY7680 Milky White Solid Polyurethane Adhesives Different?

PY7680 belongs to the category of milky white solid polyurethane adhesives, characterized by:

Stable solid-state storage performance
Controlled melting and application behavior
Uniform milky white appearance for consistent coating
Strong bonding strength after curing
Excellent resistance to moisture and temperature variation

Compared with conventional liquid adhesives, solid polyurethane systems provide improved storage stability and reduced risk of leakage during transportation.

Model number	PY7526		PY7680H		PY7680H
Mixed volume ratio	10∶1		10:1		1:1
Color after mixing	Water-white to light yellow solid		Milky white solid		Milky white solid
(mPa·s, 25℃)Mixed viscosity	4000-6000		6000- 10000		6000-15000
Storage method:	1. The product should be stored in a cool and dry environment, away from direct sunlight. It is recommended to store it at a temperature of 8°C to 25°C, and keep it away from fire and heat sources. Under these conditions, the shelf life of the product is 6 months. 2. The product is packaged in an air-isolated manner. Before use, confirm that the packaging aluminum foil is intact. Damage to it will cause the product to solidify and deteriorate. 3. Contact with vapors, water, and alcohol and other alcohol-based solvents is prohibited.		1. The product should be stored in a cool and dry environment, away from direct sunlight. It is recommended to store it at a temperature of 8°C to 25°C, and keep it away from fire and heat sources. Under these conditions, the shelf life of the product is 6 months. 2. The product is packaged in an air-isolated manner. Before use, confirm that the packaging aluminum foil is intact. Damage to it will cause the product to solidify and deteriorate. 3. Contact with vapors, water, and alcohol and other alcohol-based solvents is prohibited.		1. The product should be stored in a cool and dry environment, avoiding direct sunlight. It is recommended to store at a temperature of 8°C – 25°C, away from sources of fire and heat. Under these conditions, the shelf life of the product is 6 months. 2. The product is packaged in an air-tight manner. Before use, please check that the aluminum film packaging is intact. Damage to the packaging may cause the product to solidify and deteriorate. 3. Avoid contact with steam, water, and alcohol and other alcohol solvents.
Packaging specification	30ml ,300ml		30ml ,300ml		30ml ,300ml
(MPA)Shear bond strength	PC-PC	11.9	PC-PC	9.5	PC-PC	9.5
	PC-aluminum	6.5	PC-aluminum	6.6	PC-aluminum	6.6
			PC – stainless steel	6.3	PC – stainless steel	6.3
（W/m·K）Thermal conductivity	—		—		—
Temperature rang	-40℃~120℃		-40℃~120℃		-40℃~120℃
Features	1. It has good adhesion strength to various substrates. 2. It has a fast initial curing speed. 3. It is suitable for automated operations		1. It has good adhesion strength to various substrates. 2. It has a fast initial curing speed. 3. It is suitable for automated operations.		1. It has good adhesion strength to various substrates. 2. It has a fast initial curing speed. 3. It is suitable for automated operations.

Key Performance Advantages of Polyurethane Adhesives PY7680

1. Strong and Durable Bonding Strength

The advanced polymer structure ensures high shear strength and peel resistance. Once applied and cured, the milky white solid polyurethane adhesives form a durable elastic bond that resists cracking and delamination.

2. Excellent Environmental Resistance

PY7680 maintains bonding integrity under humidity, temperature fluctuations, and moderate chemical exposure. This makes it suitable for long-term industrial use.

3. Good Flexibility After Curing

Unlike brittle adhesives, polyurethane systems retain flexibility, absorbing vibration and mechanical stress. This property extends product lifespan in dynamic environments.

4. Stable Processing Performance

As a milky white solid polyurethane adhesive, PY7680 offers predictable melting and spreading characteristics, supporting automated production lines and precise application control.

Typical Applications of Milky White Solid Polyurethane Adhesives

Polyurethane Adhesives PY7680 is widely used in:

Optical component assembly
Electronic module encapsulation
Plastic-to-metal bonding
Glass bonding applications
Industrial laminating processes
Decorative panel assembly

The balanced performance of this milky white solid polyurethane adhesives product ensures compatibility with modern precision manufacturing requirements.

Technical Characteristics Overview

Although specific technical parameters depend on application conditions, PY7680 generally offers:

High initial tack after heating
Strong final bonding strength
Good thermal resistance
Moisture-resistant cured structure
Uniform milky white solid appearance
Controlled viscosity after melting

For detailed technical data sheets (TDS), customers can contact our technical team.

Processing & Application Guidance

To achieve optimal bonding performance with milky white solid polyurethane adhesives:

Ensure substrate surfaces are clean, dry, and free from oil or dust.
Heat the adhesive to the recommended melting temperature.
Apply evenly to the bonding surface.
Assemble components within the specified open time.
Allow adequate cooling and curing time before applying load.

Proper temperature control and substrate preparation are key to achieving maximum bond strength.

Storage and Shelf Life

As a solid polyurethane adhesive, PY7680 offers convenient storage characteristics:

Store in a dry, cool environment
Avoid direct sunlight
Keep packaging sealed before use

The solid format of milky white solid polyurethane adhesives reduces evaporation risks and enhances transportation safety.

Why Choose PeiYang Polyurethane Adhesives PY7680?

Consistent product quality
Stable industrial supply capability
Professional technical support
Suitable for automated production lines
Reliable long-term bonding performance

PeiYang focuses on delivering dependable polyurethane bonding solutions tailored to customer production needs.

Frequently Asked Questions

Is PY7680 suitable for optical applications?

Yes. The uniform milky white solid polyurethane adhesives formulation supports precision assembly and stable bonding performance in optical and electronic industries.

What materials can it bond?

It is compatible with many substrates including plastics, metals, glass, and composite materials. Testing is recommended for specific material combinations.

Is it resistant to humidity?

After curing, polyurethane adhesives provide good moisture resistance and maintain bonding integrity under humid conditions.

Can it be customized?

Bulk packaging and customized formulations may be available upon request depending on production requirements.

Request Technical Consultation or Sample

If you are looking for reliable milky white solid polyurethane adhesives for industrial or optical applications, PeiYang Polyurethane Adhesives PY7680 offers a stable and high-performance solution.

Contact us today for technical specifications, sample requests, or customized bonding recommendations. Our team is ready to support your production needs with professional polyurethane adhesive expertise.

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