新闻中心
PP (polypropylene) plastic has extremely low surface energy and is difficult to wet. Ordinary EVA hot melt adhesive particles stick directly, which is basically a “false adhesion” and can be easily peeled off. This is the most common pitfall: thinking that hot melt adhesive is omnipotent, but the PP adhesive falls off completely.
| Scene | method |
|---|---|
| PP packaging adhesive | Select PO type/modified special particles+surface treatment |
| PP and paper composite | Specialized formula for soaking paper while grabbing PP |
| Small fixed area | Apply adhesive after primer for greater stability |
Q: Does Sunlife have particles that can stick to PP?
Answer: Yes, Guangzhou Sunlife Trading recommends specialized models based on PP type and sends samples.
Q: Can the surface stick without treatment?
Answer: Difficult, it is recommended to at least do corona discharge, which has low cost and good effect.
Q: Is PE as difficult to stick as PP?
Answer: Similar, both belong to polyolefins and require specialized formulas.
PP adhesive overturned, sent the material sample to Guangzhou Sunlife Trading, and Sunlife hot melt adhesive provided the formula+process combination.
Direct answer: The consumption of adhesive particles is relatively high, and 90% of the problem lies in four areas – excessive setting of adhesive amount, waste caused by improper temperature, equipment leakage, and mismatched selection of adhesive particles. After item by item investigation, most factories can reduce unit adhesive consumption by 15% -30% without sacrificing […]
Whether using hot melt adhesive for packaging, automotive, printing materials, or any other adhesive application, details are important. The good case is that inefficient use of adhesive can lead to waste – the bad case is that it can cause system problems, thereby increasing costly downtime. One of the common problems encountered with hot melt […]
How often is it appropriate to clean the glue pot? The cleaning cycle of the glue pot depends on the amount and type of glue used. General recommendation: Thoroughly clean every 2-3 months under continuous production conditions; Intermittent use (less than 3 days per week) can be extended to 4-6 months. But in the following […]
Many masters feel that “keeping the glue pot on is the most electricity consuming”, so they frequently switch it on and off. actuallyRepeated cold start consumes more power and damages equipment than insulationBelow are three common misconceptions. Misconception 1: Keeping it on=burning at full power all the time The glue pot isThermostat ControlAfter reaching the […]
