Silicone sealants are an excellent solution for many industrial applications because of their strength, versatility and durability. DOWSIL™ offers high-quality sealants that outperform many of the organic polymer-based products. In this article, we will explore the main benefits of this category of sealants, from their durability characteristics to the chemical and physical properties that make them ideal for a wide range of industries.
Increased durability and versatility
DOWSIL™ silicone sealants offer greater durability and versatility than most organic sealants. Made as RTV (Room Temperature Vulcanizing) products, they dry at room temperature, achieving a rubbery, durable consistency. This makes them suitable for a variety of industrial adhesion and sealing needs, with the ability to be used in a multitude of applications without the need for frequent maintenance.
Stability at extreme temperatures
One of the strengths of silicone sealants is their thermal stability. These sealants maintain their properties between -56°C and 177°C, with intermittent resistance up to 204°C. Some specific products are designed to withstand even higher temperatures, exceeding 260°C. This resistance makes silicone sealants a suitable choice for systems and components exposed to severe temperature fluctuations.
Weather and UV resistance
DOWSIL™ silicone sealants are formulated to withstand severe weather conditions and exposure to ultraviolet (UV) light. This feature prevents the material from hardening, cracking or deteriorating over time, providing long-term protection even in outdoor environments exposed to rain and snow. Because of this durability, these sealants are widely used in outdoor applications and for structures that need effective weather protection.
High chemical stability
Chemical stability is another advantage of silicone sealants. They do not degrade easily when exposed to harsh chemicals and air pollutants, a benefit that makes them ideal for industrial environments with prolonged exposure to solvents, acids and other chemicals. This chemical resistance ensures reliable and durable performance, minimizing the risk of failure and replacement costs.
Excellent adhesion to various materials
DOWSIL™ sealants provide strong adhesion to a wide range of industrial materials, including glass, ceramics, wood, metals and many plastics. This adhesive versatility makes them perfect for construction, machinery assembly and electronic applications. The ability to adhere without compromising strength allows for effective application in many industrial settings.
Electrical properties and low flammability
Silicone sealants are suitable for electronic applications due to their insulating properties. These sealants maintain performance over a wide range of temperatures, making them ideal for devices subject to thermal cycling. In addition, their low flammability provides an extra level of safety: in the event of fire, sealants do not burn easily and many products meet UL flammability standards, a critical aspect of ensuring safety in industrial applications.
Why prefer silicone sealants to organic products?
Silicone sealants are distinguished by superior durability and effective protection that can last up to three times longer than organic materials. This avoids costly restorations and ensures long-lasting performance. Unlike organic products, silicones do not undergo chemical inversion, a phenomenon that can degrade organic sealants into a brittle, ineffective substance. In addition, silicone sealants retain flexibility even when stretched or compressed, resist cracking and wear over time.
Conclusion
DOWSIL™ silicone sealants are an advanced and durable solution for multiple industrial applications. With superior properties in terms of temperature resistance, adhesion and durability, these products offer significant advantages over organic-based sealants. Relying on these sealant categories can make all the difference in ensuring the longevity and quality of industrial operations. For more information on the benefits and applications of these sealants , contact our Mascherpa experts.
