Why is oily double-sided tape more heat resistant?
Publish Time: 2025-05-08
The reason why oily double-sided tape is considered more heat resistant is mainly related to its material composition and the properties of the adhesive. Compared with water-based or solvent-based tapes, oily tapes use oily adhesives based on rubber or acrylates, which have stronger thermal stability. Oily adhesives are not easy to soften or decompose in high temperature environments, thus maintaining good bonding properties. In addition, oily tapes usually use thicker substrates, such as PET film or foam, which also have a certain degree of heat resistance.The chemical structure of the adhesive determines the heat resistanceThe heat resistance of oily double-sided tape mainly comes from the chemical structure of its adhesive. Oily adhesives are usually composed of long-chain molecules with a high degree of cross-linking between these molecules, making them less likely to deform or degrade when heated. In contrast, the intermolecular forces of the adhesives of water-based or solvent-based tapes are weaker and they are prone to lose viscosity or even carbonize at high temperatures. Oily adhesives, due to their stable chemical structure, can maintain adhesion and elasticity at higher temperatures. This characteristic makes oily double-sided tape widely used in industries such as electronics and automobile manufacturing, because these industries have high requirements for the temperature resistance of materials.The choice of substrate enhances the heat resistance of oily double-sided tapeIn addition to the characteristics of the adhesive itself, the substrate used by oily double-sided tape also affects its high temperature resistance to a certain extent. Common substrates include polyester (PET), polyurethane foam, non-woven fabrics, etc. These materials not only have good mechanical strength but also excellent heat resistance. For example, PET film can be used for a long time in an environment above 100°C without obvious deformation, which provides additional thermal stability for oily tape. In addition, some high-end oily double-sided tapes will also use special coatings or composite layers to further improve their performance in high temperature environments. It is precisely because of the auxiliary role of these substrates that oily double-sided tape can still maintain reliable bonding under extreme conditions.High temperature performance in actual applicationsIn actual applications, the high temperature resistance of oily double-sided tape has been widely verified. For example, in the process of automobile manufacturing, many parts need to be assembled or fixed in a high temperature environment. Ordinary tapes often cannot meet this demand, while oily double-sided tape can provide lasting adhesion in this environment. Similarly, in the production of electronic equipment, oily double-sided tape is often used between circuit boards and radiators to achieve a stable connection. Even if a lot of heat is generated during the operation of the equipment, the tape will not fail easily. In addition, in the building decoration industry, oily double-sided tape is also used to fix insulation materials or metal panels. Its high temperature resistance ensures the safety of long-term use. It can be seen that oily double-sided tape has shown excellent high temperature resistance both in industrial manufacturing and in daily life.Comparison with other types of tapesAlthough there are many types of double-sided tapes on the market, oily double-sided tape still has obvious advantages in high temperature resistance. Compared with water-based tapes, the adhesive of oily tapes does not contain water, and the viscosity will not decrease due to evaporation at high temperatures. Although solvent-based tapes perform well in some aspects, their adhesives are easy to volatilize at high temperatures, resulting in weakened adhesion. In addition, although some modified silicone or hot melt adhesive double-sided tapes also have a certain degree of high temperature resistance, they are expensive and may become brittle in low temperature environments. In contrast, oily double-sided tape is not only moderately priced, but also maintains stable performance in different temperature ranges, making it one of the preferred bonding materials in many industries.In summary, the reason why oily double-sided tape is more resistant to high temperatures is mainly because its adhesive has a stable chemical structure and uses a substrate with excellent heat resistance. These factors work together to enable oily double-sided tape to maintain good bonding performance in high temperature environments. Whether in electronics, automobiles, aerospace or architectural decoration, oily double-sided tape plays an important role.
