The solutions to screen printing silicone poisoning mainly include the following aspects:
1.Increase the content of platinum curing agent: Increase the anti-poisoning ability by increasing the content of platinum curing agent. This method can effectively solve the problem of mild silicone poisoning
2.Heating treatment: For the sticky situation after mold molding, it can be solved by heating. If heating cannot solve the problem, you need to consider adding platinum curing agent or re-evaluating the mixing and mixing ratio
3.Ensure the correct ratio: When using AB liquid silicone, ensure that the ratio of agent A and agent B is correct. If the ratio is slightly wrong, the silicone may not cure
4.Avoid harmful substances: When handling silicone, avoid secondhand smoke and direct contact with silicone by smoking hands, and pay attention to whether there are organic compounds such as nitrogen, phosphorus, sulfur, or ionic compounds containing alkynes and polyvinyl compounds, as well as elements such as Pb, As, Hg, Sn, etc. in the environment. These substances will inhibit the curing reaction of silicone
5.Avoid contact with other resins: When handling silicone, avoid direct contact with UV resin, polyurethane, photosensitive resin, epoxy resin, unsaturated resin, organic tin catalyzed silicone, sludge, etc.
6.Check curing conditions: Sometimes, silicone does not solidify because the temperature and time do not meet the requirements. You can consult the docking specialist in detail to understand the specific curing conditions
7.Pay attention to storage time: It is recommended to use unopened silicone within 6 months, and use it up within 2 months if it is well sealed after opening