Compared to other potting adhesives, the most prominent two points of additive potting adhesives are their thermal conductivity and flame retardancy. It can be cured at room temperature or at elevated temperature. The higher the heating temperature, the faster the curing speed.

The packaging method of addition molding potting adhesive is generally divided into two components: A and B: the catalyst and organic silicon polymer containing vinyl functional groups are used as one component; Hydrogen containing polysiloxane crosslinkers are used as another component. The mixing ratio is generally carried out at A: B=1:1, and the ambient temperature has a certain impact on the operating life after mixing. When the ambient temperature is high, the reaction speed is faster and the operational applicability period is shortened.

The vulcanization reaction is carried out at room temperature or under heating conditions. Do not release by-products. Due to the fact that low molecular weight compounds are not released during the cross-linking process, addition molded silicone rubber does not undergo shrinkage during the vulcanization process. This type of vulcanizate is non-toxic, has high mechanical strength, excellent hydrolysis resistance stability (even under high-pressure steam), good low pressure shrinkage deformation, low flammability, can be deeply vulcanized, and the vulcanization rate can be controlled by temperature. Therefore, it is a type of silicone rubber that is currently vigorously developed domestically and internationally
The two-component addition molding potting adhesive can be divided into elastic silicone gel and silicone rubber. The former has lower strength, while the latter has higher strength. Their vulcanization mechanism is based on the Addition reaction (hydrosilylation) of vinyl (or propylene) group on the end group of silicone rubber and hydrosilylation group on the crosslinker molecule. In this reaction, polysiloxane containing hydride function is used as a cross link agent, and Chloroplatinic acid or other soluble platinum compounds are used as catalysts.

Precautions for use:

① When the addition molding potting adhesive comes into contact with sulfur, sulfides, sulfur-containing rubber materials, amine compounds, amine containing materials, organic tin compounds, and silicone rubber containing organic tin, it can cause the potting adhesive to not cure.
② When the adhesive is stored for a period of time before being taken out for use, there may be layering of the adhesive. However, it can be stirred evenly before use, which does not affect the performance of the adhesive
③ Glue should be sealed and stored. Mix as much glue as needed at a time, and do not mix too much to avoid waste.
④ This product is not a hazardous material, but do not enter or eye contact.