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Silicone adhesives play a critical role in numerous industrial fields thanks to their unique properties. Silicone adhesives are bonding materials formulated by using polyorganosiloxane as the base polymer and incorporating fillers, crosslinking agents, catalysts, and other additives. Their main chain consists of strong Si-O bonds, while their side chains feature organic groups such as methyl, phenyl, or vinyl. This structural design endows them with exceptional characteristics, including resistance to high and low temperatures, weathering and aging, electrical insulation, biocompatibility, and flexibility with excellent impact resistance. The curing mechanisms of silicone adhesives mainly include condensation-type (e.g., alcohol-releasing, ketoxime-releasing, acid-releasing), which cures by reacting with moisture in the air or hydroxyl groups on the bonded substrate surfaces and may generate byproducts. The other type is addition-type curing, which involves platinum-catalyzed addition reactions—this method produces no byproducts and offers superior deep-cure performance.

Product Applications

This product is widely used in multiple sectors, including new energy vehicles, electronics and semiconductors, photovoltaics and energy storage, smart consumer electronics, industrial manufacturing and power industry, medical devices, aerospace, and others.

Product Features

• Thermal Conductivity: 0.8 W/m·K
• White paste with excellent adhesion;
• Fast curing speed, non-corrosive to substrates.

Technical Parameters

Process usage

1. Thoroughly clean the surfaces of the components to be bonded or coated. Unscrew the cap of the adhesive tube and attach the supplied plastic nozzle, and then squeeze the adhesive onto the area where bonding is required.
2. If the gluing area is located relatively deep, the complete curing time will be extended; similarly, if the temperature and humidity are lower, the curing time will also be prolonged.

• Storage environment: Temperature 5–35℃, humidity 0–65%.
• Shelf life: 12 months;
• Transportation: This product is environmentally friendly and healthy, and should be transported as non-hazardous goods.

Key factors for selecting silicone adhesives

Choosing the right silicone adhesive requires a comprehensive consideration of several factors, much like answering a multiple-choice question:

Curing characteristics

• Single-component vs. Two-component: Single-component silicone adhesives are easy to operate(typically curing by contact with moisture in the air), but their curing speed is significantly affected by ambient temperature and humidity, and deep-layer curing may be slightly slower.
• Two-component systems require mixing (A and B agents), and their curing conditions—such as ratio and temperature—are more controllable. Typically, they can achieve faster and more thorough curing, and their performance is also more stable.
• Curing by-products: Condensation-type curing (such as alcohol-evolving, oxime-evolving, and acid-evolving types) release small-molecule substances. Acid-releasing types are corrosive to metals and other materials and have a strong odor, making them unsuitable for use in electronic and electrical devices as well as confined spaces. Alcohol-evolving and oxime-evolving types are relatively more environmentally friendly, exhibit lower corrosivity, and are thus more widely applicable. Addition-curing has no by-products, low shrinkage, and excellent performance; however, it may require a primer to enhance adhesion to certain materials or carries a risk of "poisoning" (failure to cure upon contact with specific materials or substances).

Substrate Compatibility and Adhesion Strength

• Confirm the bonding material: Different silicone adhesives exhibit significantly varying bonding performance on different materials, such as various plastics, metals, glass, and ceramics. It is essential to select a product specifically tailored to the type of substrate you intend to bond. For example, when bonding plastics, pay special attention to whether the plastic contains plasticizers (which can easily leach out and compromise bonding performance), and choose an adhesive of the appropriate type—for instance, oxime-based adhesives work particularly well on PC, nylon, and other similar materials.
• Bonding strength requirements: Clearly specify whether the bonding is intended for structural or sealing applications. Structural bonding requires higher bonding strength (e.g., ≥2 MPa), while sealing bonding places greater emphasis on gap-filling and leak-proof performance.

Environmental Tolerance

• Temperature resistance range: Ensure that the selected adhesive’s long-term operating temperature range (e.g., -50℃ to 200℃) and short-term tolerance for extreme temperatures (such as above 250℃) meet the requirements of the application environment.
• Chemical resistance: If the application environment involves contact with oils, solvents, acids, bases, or other chemicals, you should select a product with corresponding chemical resistance.
• Weather Resistance and Anti-Aging Properties: When used in outdoor applications, automotive, photovoltaics, and other fields, adhesives must be able to withstand ultraviolet radiation, ozone, and high humidity and heat, maintaining their performance without degradation over the long term.

Special performance requirements ​

• Thermal Conductivity: For components that require heat dissipation (such as power devices, sensors, batteries, etc.), it is necessary to select silicone adhesives with high thermal conductivity.
• Flame Retardancy: In fields such as automotive electronics, home appliances, and new energy, adhesives typically need to meet high flame-retardant ratings (e.g., UL94 V-0).
• Flowability/Thixotropy: Adhesives with good flowability are easy to apply into narrow gaps and complex structures; adhesives with excellent thixotropy (anti-sagging properties) are suitable for vertical or overhead applications and are less likely to run or drip.
• Appearance and Environmental Compliance: Do you require a transparent, white, or other specific color? Is odorlessness required (e.g., for use in home appliances or medical settings)? Does the product comply with environmental regulations such as RoHS and REACH?

Process and Operability

• Operation time: The pot life—the usable time after mixing the two-component adhesive—must be matched to your production rhythm.
• Curing Speed: Do the surface-drying time and full-curing time meet the production efficiency requirements? Can heating accelerate the curing process?
• Construction methods—manual dispensing, automated equipment application, or scraper coating? Different construction methods impose varying requirements on the adhesive’s viscosity and thixotropy.

Operation Tips and Precautions ​ 

• Surface preparation is crucial: Before construction, be sure to ensure that the bonding surfaces are clean, dry, free of oil and grease, and free of dust. If necessary,use a cleaning agent (e.g., isopropyl alcohol) to wipe the surfaces, ensuring the cleaning agent has fully evaporated. For certain difficult-to-bond materials, it may be necessary to sand the surface or apply a primer to enhance adhesion.
• Environmental temperature and humidity have a significant impact—especially for single-component moisture-curing products, where ambient temperature and humidity can markedly affect their curing speed and performance. Low temperatures and low humidity can substantially slow down the curing process.
• The amount of adhesive applied should be appropriate: a thicker adhesive layer is not necessarily better. Generally, it is recommended to control the thickness of the adhesive layer—while ensuring sufficient contact and avoiding insufficient adhesive—so as to achieve both excellent performance and cost-effectiveness.
• Test before application: Before large-scale use, be sure to conduct a small-sample test to verify that the bonding performance, curing condition, and compatibility with other materials meet your expectations.