Hot-melt rubber repair agent technology

Release time:

2020-09-23

1. Preheating glue gun
Turn on the heating switch 20 minutes in advance to warm up to the set temperature
2. Grinding
Use tungsten steel grinding disc to roughen the broken rubber surface of the conveyor belt, and pay attention to prevent polishing or scorching during grinding.
3. Cleaning and activation
Mix thoroughly according to LPT920 treatment agent A and B, and apply LPT920 treatment agent evenly on the treated rubber surface. Temperature 25 ℃, humidity 60%, air for 10 minutes, when the temperature is low, should extend the drying time or hot air gun dry. (Treatment agent is now prepared and used)
4. Apply primer
On the surface of the dried LPT920 treatment agent, apply the LPT920 primer thinly and evenly, with a temperature of 25 ℃ and a humidity of 60% for 10 minutes. When the temperature is low, the drying time should be extended or dried with a hot air gun.
5. Scraping glue
When the glue gun reaches the set temperature, pour LPT920 hot-melt rubber repairing agent into the barrel of the glue gun, squeeze out the glue solution to the place to be repaired, and scrape it with a scraper. When the glue is naturally cooled to normal temperature, it can be operated.
Common problems of hot-melt rubber repair agent
1. The hot melt glue gun must be preheated 30 minutes in advance.
2, to control the temperature of the gun. If the temperature is not enough, the extruded repair agent does not melt well and is not easy to scrape. The repair agent produced by the agent with too high temperature is easy to scrape, but it will affect the tensile strength of the glue.
If the repair time is limited, let the repair agent cool naturally for 20 minutes, and then take physical cooling.
4. After repairing, the edge part should be repaired and smooth, and there should be no obvious ridges.
5. After repair, observe whether there are pores caused by permeability. If there are pores, fill them up.

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