Q1: What affects the service life of silicone seal strip?
The door seal strip and window seal strip manufacturer tells you that the load-bearing size and expansion speed of silicone sealing strips will directly or indirectly affect the service life of silicone sealing strips. Sealing strips are affected by the shape of objects and the installation form such as aircraft, convex grooves or pipe grooves.
The installation form of each sealing strips ，like rubber seal strip，weatherstippings，door gap seal is different, which will cause uneven pressure and offset of the pressure center, resulting in the phenomenon of one side being heavy and the other side being light. Under this long-term uneven force pressure, it is easy to cause expansion and deformation. When the silicone rubber sealing ring is taken out again, the strip may have been bent and warped. Therefore, it is important to control the integrity of horizontal balance and balanced load during installation.
Sometimes, the difference in specifications of silicone seal strips can also cause gaps and deformation. Using poor silicone material seal strips, or shrinking under high and low temperature conditions, can also cause deformation of the sealing strips.
Q2: Why do gaps appear in the sealing strips when they are used?
The problem of gaps can be divided into several aspects:
One is the problem of plastic particles in the material. Many seal strips will have insufficient elasticity and tensile strength due to formula problems, resulting in gaps during use, which will lead to differences in specifications.
Secondly, some silicone seal strips processing manufacturers have problems in production and subsequent processing: these problems occur when the product is soft, making the silicone seal strip thinner, the plastic fragments are immature when the product is soft, and cracks appear after long-term tensile stress.
The third is the destruction of soft strength. In many cases, the softness of silicone seal strip is different, which will change the basic performance and structural form of the product. Therefore, in the entire application process, due to different choices of soft strength, silicone sealing strips will inevitably have gaps, excessive bearing capacity, excessive strength, product deformation and poor durability, resulting in deformation of silicone sealing strips.
Q3: So can silicone sealing strips be used for two years?
It can only be identified according to different test methods. Under different use environments and temperature environments, the lifespan of the sealing strips varies from person to person. But if you know the reasons that shorten the service life of silicone sealing strips, try to avoid them and do your best to extend the service life of silicone sealing strips, or you can buy silicone sealing strips again.
Q4: Door rubber seal and window sealing strip and brush seal manufacturers tell you what are the advantages and disadvantages of silicone sealing strips?
Advantages of silicone seal strips.
- Good sealing performance, waterproof and leakproof, environmentally friendly and non-toxic;
- Can be heated at high-intensity temperature without deformation, does not contain harmful substances;
- Excellent tensile strength;
- Long-term use will not change the yellow color;
- Resistant to corona discharge, arc resistance, high and low temperature tests, excellent anti-aging performance and heat resistance; 6. Good high temperature resistance, silicone rubber sealing ring can be used for a long time at 150℃ without characteristic changes, can be used continuously for 10,000 hours at 200℃, and can be used briefly at 250℃;
- Silicone sealing strips have good cold resistance. Generally, plastics are at -20-30℃, while silicone sealing rings still have good ductility at -50-60℃. Some special low-temperature resistant silicone products can also withstand lower temperatures.
Disadvantages of using silicone sealing strips:
Silicone rubber seal strip are not resistant to acid and alkali, and are not suitable for most concentrated solvents, fine oils, concentrated acids and dilute hydrochloric acid solutions. It is not recommended to use silicone rubber seal strips in these situations.
The above is the content shared by the editor of the door and window sealing strip manufacturer for you, I hope it will be helpful to everyone.
