The importance of dropping glue in the production of silicone rubber products

After the production of silicone products is completed, some customers will increase the combination of logo printing, oil injection, spraying, silk screen printing, glue dripping and other processes according to the use and requirements, so as to improve the brand value of the products and increase the brand grade. Do you know what needs to be paid attention to in the glue dripping process.

1. Ensure the cleanliness of all appliances during the glue dripping process to avoid affecting the appearance of impurities, ripples, pockmarks and other defects on the surface after the glue is cured.

2. The humidity of the dripping working environment shall be controlled within 68%.

3. It is not recommended to drip glue in rainy days, because when the air humidity is too high, the mist in the air will directly lead to the oxidation of the glue surface.

4. The proportion of glue must be weighed accurately, and the glue must be mixed evenly, otherwise the dripping glue will not be cured completely and will be cured for a long time.

5. Silicone rubber products with strict dripping effect should be placed in the area to be dried, and the temperature should be controlled between 28 ° - 40 °.

Under normal circumstances, silicone rubber products are easy to absorb dust, fine hair and other impurities in the silicone rubber products factory. Therefore, during the production and manufacturing process, the silicone rubber manufacturer will spray a thin layer of hand feel oil on the surface of the silicone rubber products, which can not only prevent dust but also ensure the hand feel. This is mainly reflected in the customer's requirements for silicone keys with different hand feel and appearance. The oil injection is divided into three different processes.

The first type: spray color oil: spray color oil is to spray a layer of visible ink on the surface of the silicone key, and the color is adjusted according to the customer's demand for the product.

The second type: spray matting (hand feeling oil): it is believed that many people of rubber products have already understood it very well. Matting ink is a kind of foggy hand feeling ink, and its characteristics are similar to PU ink. However, spray matting ink will make the surface of silicone keys appear foggy, and it can spray frosting effect, and the hand feeling is more smooth.

The third type: Pu spraying: Pu refers to a kind of ink, which has strong adhesion, wear resistance, good transparency and other characteristics. The silicone keys sprayed with PU also have a very good feel and wear resistance. It is also a very common process for silicone product manufacturers.