Melt glue is hot melt glue, harbor treasure is harbor treasure. "Hot melt adhesive" is a kind of material that will melt when heated, while Gangbao is a piece of material added to make shoes stronger in the process of shoe making. Gangbao made of hot melt adhesive is "hot melt adhesive Gangbao". It can't be the same thing, but it doesn't matter. Your company is just making hot melt adhesive instead of shoes, of course, you will not know what harbor treasure is.

（1） Low temperature hot melt adhesive
(1) 307 resin is an unsaturated polyester resin obtained by esterification of propylene glycol, ethylene glycol, maleic anhydride and phthalic anhydride.
307 resin and styrene are processed and mixed, which is the main body of what we call 307 glue. 307 glue should be used with a certain temperature. 307 glue is cheap and easy to operate. It can be used to glue and mend the finished board. It can also be used to glue the rough board and semi-finished products. It can also be used for penetration bonding. It can also be used to glue the back net of the big board. It can also be used to produce the parquet with the waste of the corners.
(2) Styrene is not only the diluent of 307 resin, but also the crosslinker of 307 adhesive. In the process of glue application, the adjustment of viscosity mainly depends on the function of styrene. Proper dilution process will help to obtain high-quality products. Otherwise, it will affect a series of properties of the products. Generally, the increase should not exceed 40% of the resin weight. Pay attention to modulation.
(3) MEK peroxide (initiator, curing agent) is a 50% transparent solution of MEK peroxide in dibutyl phthalate. It acts on 307 glue to initiate oxidation-reduction reaction and solidify. The dosage should be appropriate. Less quantity will delay the glue curing and make the curing incomplete. More quantity will not only not lead to faster curing, but also make peroxide exude from the curing resin, which will cause oxidation to the stacked board surface and damage the board surface. In many sheet metal processing plants, the gridding of the surface (front) of the colored sheet metal (especially the smooth sheet) is harmful. There are strict requirements for the transportation and storage of this material, which must be abided by.
(4) Cobalt isooctanoate accelerator is a purple solution of cobalt isooctanoate dissolved in styrene in a certain proportion. It is the most active oxidation drier. Its function is to reduce the decomposition temperature of the initiator and speed up the reaction between the initiator and the resin. Promote glue polymerization at room temperature. Its dosage should be changed with the working environment temperature of 307 glue application. If the environment temperature is high, the dosage can be less, otherwise, the dosage should be more. Limit the dosage to 1-4%.
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Contact: Miss Liang
Contact us: 17841304717 (wechat synchronization)
Website address: http://www.kpcp.com.cn
Dongguan jieshimei shoes material Co., Ltd. (also known as Italian jieshimei Moro Industry Co., Ltd.)
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