Transparent rtv silicone adhesive Rubber and metal bonding

Will drying the metal after brushing the adhesive affect the bonding? How different is the bonding effect from that of natural drying!

The drying temperature shall not be too high. It has no difference from the bonding after natural drying. The drying is mainly to speed up. The effect should be no different, and the key is to prevent pollution. It is reported that the adhesive force of drying is higher than that of non drying. Natural drying will only work on the solvent of the glue solution, while drying will dry away the moisture in the environment. The surface will be drier, with better effect and less blistering. The efficiency is high, and the bonding will be improved when molding while hot. When the mold is naturally dried, it is easy to stick to the mold. Later, it was dried instead of sticking to the mold, and the effect is better. Drying is easier to control the process, so as to ensure the consistency of product quality. There are many uncertainties in natural air drying, which is not very conducive to product quality control.

Rtv silicone electronic heat conduction silicone manufacturers share: drying, adhesive pre curing, to prevent adhesive scouring; Natural air drying has no such effect. Adhesive drying is mainly divided into three aspects: 1. Natural air drying generally takes more than 45 minutes at room temperature. 2. Drying. The temperature can be controlled at 70-110 ℃ for at least 10 minutes. 3. The pre curing temperature can be controlled at 120-145 ℃.

The first two effects are similar, basically no difference. Relatively speaking, the drying degree is better and the efficiency is high. The third is to improve the erosion resistance of metal framework and adhesive. Especially for galvanized parts, which are difficult to be bonded, it is better to pre cure. But the temperature should not be too high and the time should not be too long, otherwise the adhesive activity will react in advance. It loses its activity when vulcanized. Generally, the reaction temperature of adhesive is above 120 ° C, and low baking temperature has no effect on adhesive!