What are the reasons why ceramic fiber boards turn yellow?
Aluminium silicate ceramic fiber board is suitable for high temperature fields that require rigidity and strength of products, but sometimes a little yellowing will occur, which has a relative impact on our use, not only on the aesthetics, but also on the use effect of Aluminium silicate ceramic fiber board. What are the reasons for its yellowing?
Below, we will mainly introduce the reasons for this.
1. The yellowing of Aluminium silicate ceramic fiber board is mainly caused by the tackifier and cross-linking agent in the neutral adhesive. The reason is that these two raw materials have “amino group”, which is easy to cause yellowing. Many brands of glass adhesive also have yellowing phenomenon.
2. If the external neutral transparent adhesive is used together with acidic glass adhesive, it may cause the neutral adhesive to turn yellow after curing.
3. It may be due to the prolonged storage time of the adhesive or the reaction between the adhesive and the substrate.
The yellowing of Aluminium silicate ceramic fiber board may be caused by the raw materials in the neutral adhesive, and it may also be caused by improper storage and use. In the final analysis, whatever it is, we need good maintenance and timely treatment.
