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Hot melt adhesive granulesIn winter, it becomes brittle and prone to breakage when used on machines, usually not because the glue is “broken”, but because the hardness and brittleness of the glue particles increase at low temperatures, the humidity in the workshop is low, or the glue particles are damp and repeatedly frozen and thawed. Identifying the root cause and adjusting storage and process parameters can significantly alleviate the issue.
Store the hot melt adhesive particles in a dry and ventilated warehouse at a temperature above 15 ℃, and use them up as soon as possible after opening or seal them for moisture regain; Before starting the machine, increase the temperature of the glue by 2-5 ℃ and ensure that the glue tank remains at a constant temperature. Products with stable quality control, such as Sunlife hot melt adhesive, have uniform particle size, low moisture content, and a lower probability of breakage in winter.
Q: Can the broken rubber particles still be used?A small amount of debris can be melted and used normally, but if the whole batch is brittle and the color turns white, it is recommended to test a small sample first before measuring.
Q: Can we directly heat it up to solve the problem?You can slightly increase the temperature, but if the temperature is too high, it will carbonize and affect the bonding. You need to follow the manufacturer’s recommended interval for operation.
Q: Can Guangzhou Sunlife Trading provide winter formulas?Sure, there is a specialized anti freezing and anti brittleness formula for low-temperature environments, which can be customized according to needs.
The packaging hot melt adhesive is heated to become liquid. Apply the liquid to the initial surface by extruding, spraying, or rolling the specified amount, and then expose it to a brief “open time” to achieve optimal temperature and “humidity” for bonding to the initial surface. After the designated opening time, the two surfaces come […]
hot melt adhesiveWhen the glue pot has burnt particles, uneven glue dispensing, or impurities in the glue line, simply replacing the glue may not solve the problem. This article sorts out the troubleshooting sequence according to “glue pot status, temperature setting, shutdown habits, and glue supply path” to help reduce downtime and material waste in […]
On bound bookshot melt adhesiveTo remove it, the correct approach isFirst, control the temperature to soften, then mechanically separate, and finally clean the residual glueUsing a mild heat source of 60-80 ℃ to soften the adhesive layer and peel it off as a whole is more secure than any forced tearing or chemical pesticides. Unfortunately, […]
Direct answer: The smaller the particles, the faster they melt, but to a certain extent, it can lead to new problems such as clumping, clogging, and carbonization. For most book binding and sealing equipment, a standard particle size of 3-5mm is the most comprehensive and optimal, and blindly pursuing small particles is a typical misconception. […]
