While making molds using RTV-2 liquid silicone, some customers encounter situations where the silicone does not cure properly or achieve the desired effect. In such cases, it is important to determine whether the issue is due to the material itself or incorrect operation. This article provides a quick and effective method to verify the root cause of the problem.
RTV-2 liquid silicone
The curing effect of RTV-2 liquid silicone is influenced by various factors, such as the accuracy of the mixing ratio, whether stirring is uniform, the addition of extra reagents, environmental temperature, and whether the surface of the master mold contains contaminants. Therefore, when encountering situations where RTV-2 silicone does not cure as expected, a systematic investigation into these potential factors is essential for identifying the issue.
If the liquid silicone cures normally in the cup, this indicates that the RTV-2 silicone material is likely of good quality, and the curing issue may stem from exposure to contaminants.
For issues that are difficult to judge, a practical preliminary detection method is to perform the so-called "cup test". This process involves mixing a small amount of part A and part B in the correct ratio in a plastic cup. If the liquid silicone cures normally in the cup, this indicates that the RTV-2 silicone material is likely of good quality, and the curing issue may stem from exposure to contaminants. This simple test method is not only applicable to RTV-2 silicone but also to most other liquid materials, such as polyurethane rubber and polyurethane casting resin, effectively aiding in diagnosis and resolution of issues.
This article aims to arm users with practical troubleshooting strategies and verification methods, enabling swift and accurate resolution of issues.
