Silicone adhesive is a kind of adhesive used in silicone rubber for bonding silicone and silicone, silicone and similar plastics, which is widely used in plastics, electroplating components, wood, stone, glass, nylon, leather and other fields. Let me introduce the selection of silicone adhesive need to pay attention to what?
1, before choosing silicone adhesive, first determine the specific material that the customer wants to bond, such as silicone, silicone rubber, whether it is formed well, or it is sticky with other materials such as metal/plastic.
2, the next is to determine the size of the material bonding surface, small area, you can use instant adhesive glue, strong adhesion, can achieve destructive, if the bonding surface is larger, more than 10cm² we choose to use a single-component slow drying type of glue, so that there will be enough time to operate the glue, so that the cost will be much lower than the instant glue, the bonding effect is also good, But the destructive force of not reaching the bonding surface is quite good.
3, determine the bonding requirements, such as: bonding speed/glue color/glue consistency/high and low temperature resistance/bonding strength and so on.
4, (1) normal temperature bond slow dry glue slow dry, adhesive silicone curing, as the silicone itself soft, elastic, waterproof, high temperature, acid and alkali resistance, tensile resistance and other effects.
(2) normal temperature bond fast drying glue fast drying type, when bonding silicone and silicone, be sure to use a treatment agent to treat the surface of the silicone material to bond, the treated silicone material, to dry for about 1 minute, and then point glue, bond, the good product can be placed for 24 hours to do high and low temperature test, tensile test, etc. This glue has a fast bond curing speed and can increase the yield, but this glue can only be suitable for bonding of small area products.
(3) High-temperature adhesive glue, after the glue is coated, it should be placed in the oven and baked at 80-90 degrees for about 1 hour, and the bonded product is soft, elastic, waterproof, high temperature, acid and alkali resistance.