What glue can stick PP plastic?

Hello! The question you asked is rather broad. The bonding of PP materials depends on the different bonding materials, that is, what materials are used to bond PP, the size of bonding area, the temperature resistance of glue, the color of glue and the use environment of bonded products. At present, there are two kinds of PP glue on the market according to the curing speed: one is quick-drying PP glue and the other is slow-drying PP glue. Their curing time, bonding principle, colloidal state and bonding range are different. ?

One: Quick-drying PP adhesive K-620 is mainly used for bonding PP with PC, ABS, PVC, nylon, silica gel, rubber, ceramics and other materials in a small area. It has the advantages of convenient operation, high bonding strength and fast positioning. Of course, it also has disadvantages, and the adhesive layer is hard after curing. If the glue overflows, it will turn white and need to be wiped off with a glue remover.

This paper introduces the application methods of quick-drying PP adhesive and small-area PP adhesive ABS:

1: unscrew the cover of the K-650 glass bottle with surface treatment agent, and dip the treatment agent in the brush in the cover to wipe the surface of PP plastic?

2. After about 10 seconds, after the treatment agent coated on the PP surface volatilizes, the plastic conduit is forcibly sleeved at the front end of the K-620PP glue bottle, and the glue is evenly distributed on the PP plastic surface through the conduit.

3. Stick ABS on the glued PP plastic, and gently press it for about 15 seconds to locate it?

2. Slow-drying PP adhesive K-720 is mainly used to bond PP plastics and other materials in a large area. The adhesive has moderate viscosity, normal temperature curing and convenient use, and can be used for machine gluing, dispensing and manual gluing. After the glue is completely cured, it is in a transparent and soft state, which plays the roles of bonding, positioning, sealing and waterproofing. ?

Use EVA to bond large area PP board, explain the purpose of slow-drying PP glue?

Single-sided gluing: keep the surfaces of PP and EVA clean (without water, oil and dust), pour K-720PP glue into an open container, pour out the corresponding amount of glue according to the number of products to be glued, then tighten the remaining glue cover and put it in the shade, brush the glue on the surface of PP board with a brush, or pour the glue on one end of PP board, scrape it off with a toothed scraper, and glue along the edge of uncoated EVA. ?

Double-sided gluing: Glue the surface of PP board and EVA in the same way as single-sided gluing, then let the glued EVA and PP board cool for 3-5 minutes (subject to touching the glue layer by hand, do not pull), then align EVA and stick it on PP board, and press hard. Compared with single-sided gluing, double-sided gluing has higher bonding strength and faster curing speed. )