Clumping of silicone potting compounds during application is a common problem affecting their performance. Many people confuse clumping with sedimentation, but the two are significantly different. Below, we analyze the causes of clumping in detail from three core dimensions: production, application, and materials, and clarify the differences between clumping and sedimentation.
With the improvement of people's living standards, lighting fixtures have become an indispensable part of home and commercial spaces. Most lighting products use silicone adhesives during production and assembly, whose core function is to bond, fix, and seal lighting components. The quality and lifespan of lighting fixtures largely depend on the choice of adhesive. Today, we will analyze in detail the key performance requirements of silicone adhesives used in lighting products.
Many customers confuse potting compounds and sealants, often mistakenly believing they are the same product. In fact, they are different products. While the core differences may not be immediately obvious, they differ significantly in application and performance. Below is a detailed breakdown.
During the use of electronic products, many devices experience problems such as severe overheating, sluggish operation, and even motherboard burnout. Upon disassembly and inspection, it is often found that the thermal grease surface is dry and cracked—this detail directly reflects the close relationship between the condition of the thermal grease and the lifespan of electronic products. So, why does thermal grease crack during application? The core reasons are mainly threefold: uneven stirring before use, high low-molecular-weight content in raw materials, and excessive oil separation rate.
Before selecting and utilizing sealants on a large scale, rigorous performance testing is indispensable. Such testing serves to verify whether the product is compatible with the specific operating conditions, while also preventing post-application issues such as bonding failure, inadequate sealing, cracking, or detachment. Ultimately, this effectively minimizes material waste and reduces the risk of costly rework.
In LED heat dissipation, there is no absolute superiority of thermal pads or thermal grease; the choice depends on the application scenario. The two differ significantly in terms of usability, insulation, and lifespan. A detailed comparison is as follows: