Rubber mold cleaning, silicone mold cleaning solution

January 13, 2021

In the rubber and silica gel industry, it is always a headache to remove the dirt in the mold. Because the vulcanized rubber and silica gel need to be carried out at high temperatures, some of the oil and chemicals left in the mold are long. Coking in time and high temperature requires the formation of stubborn dirt. Use LW303 to wash the mold water to remove all dirt in an instant. LW303 super- modifying washing water contains special accelerator and mold-specific washing agent. In the past, the washing agent often has insufficient cleaning power. It must be combined with metal brush or sandblasting to remove stubborn dirt on the mold, thus often causing damage to the mold. To use this product, a small amount of stock solution or diluent should be sprayed on the surface of the mold. In a very short time, the stubborn dirt can be completely removed without damaging the mold and prolonging its service life. It is excellent in rubber product mold cleaning, tire mold cleaning, rubber seal mold cleaning, and silicone product mold cleaning.

First, the use of washing water properties:

1, LW-303 [wash-water] of high quality mold cleaning agents, any serious mold instantaneously completely removed dirt, easy to use, will not damage the die, but also to extend the service life of the mold.

Second, the advantages:

1. The high-temperature mold is directly cleaned, and the dirt is completely removed in an instant, without stopping the machine, and the production is not affected. After the descaling mold is clean and bright, it can improve the product quality and increase the suburban rate.

2 , This product is a highly concentrated water-soluble liquid, which can be diluted according to the pollution degree of the mold and appropriate water. It is very economical and practical, and can directly reduce the production cost. Oil stains or mild rust can also be removed.

Third, the use of:

1. Dispersion method: Please use a small amount of stock solution or diluent to spread or apply on the mold at high temperature. After 2-10 minutes, the dirt will soften and dissolve. Immediately rinse with water before the mold water is dry. The mold temperature is above 95 °C.

2, a dipping method: iron bath containing liquid or diluent, heating after soaking about 95 deg.] C for about 2--3 minutes. Or directly into a mold at a high temperature in solution at room temperature, soaked in 2 - 3 minutes after starting to take then rinse with water.

Fourth, note:

1. This product is an alkaline solution. Wear gloves when working.

2. If your hands or skin are in contact with the solution, wash them off with water.

3. Because it is an alkaline substance, aluminum molds cannot be used.

V. The reason for using common problems and solutions
1 mold cleaning is not clean

1 . If the mold temperature is too low or too high (85-120 degrees ) , the adhesion of the mold water to the surface of the mold is insufficient.
2 . The mold scale is too thick and cannot be completely removed at one time.
3 . The reaction time of the mold water on the surface of the mold is too short to sufficiently soften the free dirt material. Decontamination is not complete after flushing.

2 mold rust after cleaning
1 . The reason is that the chrome-plated mold will reveal a fresh metal surface after cleaning, interacting with the oxygen in the air, plus the electrolyte in the cleaning agent.
2 . Solution: Rinse the residual cleaning agent as much as possible, and apply an emulsified oil or mold release agent to protect the fresh surface before the mold is dried.
3 . Use a variety of cleaning agents containing corrosion inhibition.
3The mold after cleaning shows sticking phenomenon
1 . It may be that the finish of the mold processing is not enough. When the dirt on the mold is completely removed, an "anchor" effect is formed between the fine groove and the rubber. Proper use of an external release agent can alleviate this phenomenon.
2 . The metal surface is lightly activated after cleaning, and as with the new mold just used, it is lightly bonded to the rubber. Proper use of an external release agent can alleviate this phenomenon.
3 . If the mold is not cleaned enough, the alkaline substance in the cleaning agent may work with the vulcanizing agent system ( such as peroxide ) in some formulations , causing under-salt on the surface of the product and temporarily sticking.