Hard PVC plastic profile is like our human suffering from color image has been cold, emerge in an endless stream. Despite the profile discoloration reflects the results vary, but all color appearance let everyone on the profile quality of doubt, all color image without make profile manufacturing plant, factory doors and windows and the fledgling plastic window career there are distressed and confused.

White PVC profile color may have the following, is now on its appearance, the reason, and the author thinks the more suitable solution to put forward, for the majority of the appearance of yellow edge by: because the PVC profile in the process of processing, the nose, filter section and mouth mold temperature is too high.

Solution: adjust the nose, the transition section and the temperature of the die The appearance of dark reason: because the nose, filter section, the temperature is too low Solution: adjust the nose, the transition section and the temperature of the die Color pink and so on.
Reason: because the formula is not reasonable or unreasonable, or raw material is not qualified, mismatch, leakage of raw materials to form, the main PVC, heat stabilizer is not qualified or stabilizer dosage can not be made into PVC degradation of color.

Solution: check the ingredients system, heat stabilizer, adjust the formula There is a little red in appearance:

Reason: mainly because the PVC stability is not good, or the quality of the light stabilizer is not qualified or ingredients are not accurate, mixed material is not uniform, the formation of PVC stability has not been maintained, showing a PVC degradation, forming the profile of some of the color and long time can recover the color image.

Solution: on the profile of the occasional red, the author thought that the first probably from the PVC resin model, batch number and its source to see, can be found in the PVC. Second, to see the quality and dosage of light stabilizer, quality is not up to the requirements or low dosage, it is difficult to form the protection of PVC degradation.

To eradicate the use defective raw materials, to ensure that the amount of light stabilizer, this representation is difficult to happen again.
The color is gray brown and black:

Reason: mainly because of the titanium dioxide and shoddy, not to reach the use of the profile of the use of the demand (must be treated with the capsule Jin Hongshi type titanium dioxide), perhaps the amount of titanium dioxide will not be formed titanium dioxide, titanium dioxide in the salt system formula, so that the type of material to become gray brown and even black.