What is the curing performance of silicone sealant

<p>The one-component sealant sealed package is stable in the container, and it will solidify when it is exposed from the container when exposed to the air. This is a chemical reaction process. The sealant is originally a paste. After contact with air, the base rubber, crosslinker, and catalyst in the sealant chemically react with the water in the air. The result of this chemical reaction is to make This paste gradually becomes an elastic solid, which is the curing of the sealant. After the sealant is punched out, because it is the surface of the sealant that is in contact with water first, it is also the surface that is cured first. After the surface is cured, the moisture penetrates into the surface that has been cured, and the inner layer is re-cured. The sealant is gradually cured from the surface to the interior. The longer the time, the thicker the solidification. The thicker the sealant, the longer it takes to fully cure. For example, a 10mm thick adhesive usually takes more than a week to fully cure.</p><p><br></p><p class="ql-align-justify">The two-component <a href="https://www.kingdeliadhesive.com/product" rel="noopener noreferrer" target="_blank">silicone sealant</a>&nbsp;is carried out through a chemical reaction between components A and B. The A and B components are stable and stored separately. Once the A and B components are mixed, they begin to react, so the A and B components should be used immediately after mixing. The two-component curing reaction does not require water in the air to participate, so its curing is carried out at the same time as the interior and the surface. The complete curing time is independent of the thickness of the glue, so the reaction is not related to contact with air. Component B is mixed together and will cure even in a closed state.</p><p><br></p><p class="ql-align-justify">The following are several concepts of silicone sealant&nbsp;curing performance:</p><p>Surface dry: The sealant is paste-like when it comes out. When it touches its surface with fingers or other materials, the glue will adhere to the fingers or materials. After the sealant comes out, the surface contacts the moisture to begin to solidify the skin. When the skin is formed, the finger or material is used to touch the surface, and no glue will adhere to the finger or material. This is called surface drying.</p>