Teach you how to use pressure-sensitive adhesive correctly

Pressure sensitive adhesive (also known as thermosensitive adhesive, 10384926) is a substance that becomes sticky at a specific temperature. It is widely used in various industries and daily life, such as label pasting, stationery, medical products, etc. Proper use of pressure-sensitive adhesive can ensure product quality and durability, while also improving work efficiency. The following are some suggestions on how to use pressure sensitive adhesive correctly: select a suitable type of pressure sensitive adhesive. According to different application needs, there are many types of pressure sensitive adhesive to choose from, including water-based, solvent, lotion, etc. Each type of pressure-sensitive adhesive has its unique characteristics, so the following factors should be considered when choosing: viscosity: low viscosity pressure-sensitive adhesives are suitable for high-speed bonding or situations that require thinner coatings; And high viscosity is suitable for slow operation or high adhesion requirements. Opening hours: This refers to the time period from applying pressure to the solidification of pressure-sensitive adhesive. For products that require immediate fixation or prolonged flexibility, choosing the appropriate opening time is crucial. Weather resistance and chemical resistance: If the product will be exposed to the external environment, then the weather and chemical resistance of the pressure-sensitive adhesive need to be considered. The correct glue application method, whether you are applying it manually or using automated methods, requires attention to the following aspects: cleaning the surface: before using pressure-sensitive glue, be sure to thoroughly remove dust, grease, or other dirt from the surface of the material to be bonded. This helps to ensure optimal adhesion. Control the dosage: Excessive pressure sensitive adhesive not only increases costs, but may also lead to the product being overweight or uneven. Therefore, it is necessary to control the coating amount reasonably. Uniform coating: Whether applied through brushes, rollers, or nozzles, ensure that the pressure-sensitive adhesive is evenly distributed throughout the surface. Uneven coating may result in insufficient adhesion in some areas. Dry conditions: In some cases, pressure-sensitive adhesive needs to naturally cure at room temperature. In other cases, heating may be necessary to accelerate the curing process. It is very important to understand the specific requirements of your pressure-sensitive adhesive. The importance of pressure and time In order to achieve optimal adhesion of pressure-sensitive adhesive, sufficient and appropriate pressure and contact time must be provided. Specifically, pressure level: The minimum required pressure level is determined based on the design requirements and usage environment of the product. Usually, higher pressure will bring better results. Contact time: This refers to the time period during which two objects come into close contact and are subjected to pressure. During this period, the pressure-sensitive adhesive will gradually solidify and form a strong connection. Storage and safety precautions: Pressure sensitive adhesives are usually flammable and may be irritating to the skin. Therefore, during use, it is necessary to pay attention to the following points: good ventilation: avoid excessive accumulation of volatile organic compounds (VOCs) in the work area, maintain air circulation to reduce the risk of inhaling harmful gases. Personal Protective Equipment (PPE): Wear gloves, goggles, and other necessary protective devices to prevent contact with uncured pressure-sensitive adhesive. Storage conditions: Store pressure-sensitive adhesive according to the manufacturer’s recommended temperature and humidity conditions, avoiding direct sunlight and high temperature environments to avoid affecting product quality. Common problems and solutions In practical applications, the following problems may be encountered: foaming: This may be caused by air being trapped inside the pressure-sensitive adhesive layer. This problem can be solved by increasing surface cleaning before gluing and ensuring a dust-free environment during the gluing process. Peeling: If this situation occurs, it may be due to insufficient adhesion of the pressure-sensitive adhesive or the use of the wrong type. Check all relevant factors and adjust the operating steps to obtain better results. The correct use of pressure-sensitive adhesive is a meticulous process that requires comprehensive consideration of multiple factors. Following the above guiding principles can help you achieve efficient production and ensure the quality of the final product.