Beyond its use in composites and resins, IOTA-550 (3-Aminopropyltriethoxysilane) is also highly valued in metal surface treatment and foundry applications. Its ability to form durable chemical bonds between organic and inorganic surfaces allows it to act as an effective tackifier and reinforcing additive in multiple industrial processes.
In rubber-to-metal bonding, IOTA-550 functions as a powerful adhesion promoter, improving bonding strength and preventing delamination under high stress or high-temperature conditions. The silane reacts with the metal surface and simultaneously with the rubber matrix, creating a strong, flexible interface that withstands mechanical vibration and aging.
In the foundry industry, IOTA-550 is used as a resin sand strengthening agent, improving the bonding of self-hardening sand cores and enhancing the mechanical integrity of molds. This leads to smoother surfaces, fewer casting defects, and improved dimensional accuracy in metal castings.
Additionally, its compatibility with various inorganic fillers — including glass fibers, talc, kaolin, mica, and silica — broadens its industrial applications. As manufacturers seek improved performance and environmental durability, IOTA-550 continues to deliver reliable solutions for metal treatment, coatings, and casting reinforcement processes.