Brief introduction:

TPU is composed of two diphenyl methane diisocyanate (MDI) or toluene diisocyanate (TDI), diisocyanate and large molecules polyols, low molecular weight polyol (chain extender) polymer reaction polymerization. Its molecular structure is composed of two phenyl methane two isocyanate (MDI) or toluene diisocyanate (TDI) and chain extender is a rigid block and two diphenyl methane diisocyanate (MDI) or toluene diisocyanate (TDI) obtained diisocyanate molecules and polyol reaction of flexible chain segments consisting of alternating.TPU with high tension, high tensile properties, toughness and resistance to aging, is a mature environmental protection materials. At present, TPU has been widely used in medical, electronic and electrical appliances, industrial and sports, it has other plastic materials by the incomparable high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, Weather resistance and other characteristics, but also has high waterproof and moisture permeability, wind, cold, warm, antibacterial, mildew, anti ultraviolet and energy release and so many excellent functions. The thermoplastic polyurethane elastomer of TPU by molecular structure can be divided into polyester and polyether type two kinds, according to processing methods can be divided into injection molding grade extrusion, blow molding grade, etc..

Bad situation:

Most of the TPU material in the injection molding process in order to improve the stripping off bad deformation problem, will die in the neutral or oily spray release agent (release agent), so in the product mix of release agent, even before spraying the surface cleaning will not be able to release agent to clean up, resulting in UV after oil primer nest or no oil.

Product use:

The company successfully developed
TPU vacuum plating oil treatment agent

Suitable for mobile phone protective sleeve, watch band, heels and other TPU products. Product performance is the main material covering oil, improve production yield, enhance material and paint adhesion.

Clean the surface with white oil→Spray

TPU, PVC vacuum plating oil treatment agent

(cross spray method, the film thickness is 3~5 micron, 65~70 degrees bake 3-5 minutes), spraying UV priming, then the next step.

Note: more oil pollution materials need to soak white oil for 5-10 minutes to decompose part of the oil

The same applies to the PVC and PU material.

Technical department: Zhang  13560812333 or  Hu  13929255523.