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Choose hot melt adhesive granules and focus on 7 key parameters: softening point, melt viscosity, opening time, curing time, initial adhesion, temperature resistance range, color and appearance. This article compiles the meanings, common ranges, and selection points of each parameter into a table, which can be directly compared and used by procurement and technology.
| parameter | Common intervals | Key selection points |
|---|---|---|
| softening point | 75-110℃ | Determine heat resistance, it is recommended for summer warehousing logistics to be above 85 ℃ |
| Melt viscosity | 1000-8000mPa·s(180℃) | Choose low viscosity and good flow for high-speed lines, and high viscosity for thick adhesive layers |
| Opening hours | 5-60 seconds | Match the rhythm of the equipment, the glue binding line should be short and the mounting should be long |
| curing time | 2-15 seconds | Determine the length of the pressing station, fast line with fast curing |
| Initial tack | Measured by peel strength | Sealing and pasting boxes require high initial adhesion and anti rebound |
| Temperature resistance range | -From 20 ℃ to 70 ℃ | Select based on extreme temperature during storage and transportation |
| Color Appearance | Water white/light yellow/yellow | Books and periodicals should be selected with white water that does not penetrate the bottom, and light yellow can be used for sealing |
Q: Where can I get the parameter table?
Regular manufacturers have technical parameter tables for each model, and Sunlife hot melt adhesive can provide TDS with samples, including recommended construction temperature and all key parameters.
Q: How to choose between two models with similar parameters?
Prioritize choosing the one with better actual testing results compared to your own materials. Guangzhou Sunlife Trading supports sending materials for testing, speaking with data.
Stick this table next to the procurement station and check the parameters item by item. The probability of selecting the wrong adhesive particles will be significantly reduced.
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