DOWSIL 732 Silicone Sealant – Aluminum / Silver Professional Sealant for Three-Piece Wheel Assembly DOWSIL 732 Silicone Sealant (Aluminum/Silver) is a high-quality RTV silicone sealant widely trusted in industrial applications and perfectly suited for sealing three-piece wheels. When assembling or resealing modular wheels, a dependable seal is critical to prevent air loss and moisture intrusion. DOWSIL 732 delivers consistent, long-term performance where it matters most. Engineered for Modular Wheel Stress This one-part, neutral-cure silicone cures at room temperature to form a flexible yet durable seal capable of withstanding vibration, pressure changes, and thermal expansion. These properties make it ideal for sealing wheel halves, center sections, and hardware interfaces on three-piece wheels, where movement and stress are unavoidable during normal driving. Aluminum / Silver Finish for a Clean Look The aluminum/silver color blends naturally with raw aluminum barrels and wheel hardware, providing a clean, professional appearance. Unlike black or clear sealants, it maintains an OEM-style look—especially important for exposed inner barrels and high-end wheel builds. Durable, Flexible, and Weather-Resistant Once cured, DOWSIL 732 remains permanently elastic, allowing it to flex with the wheel without cracking, shrinking, or separating over time. It offers excellent resistance to moisture, road grime, and temperature fluctuations, helping prevent slow leaks and corrosion that can compromise wheel integrity. Application for Wheel Builders DOWSIL 732 extrudes smoothly and tools easily, allowing for precise application along inner barrel seams. It skins over consistently, making it easier to achieve a clean, uniform seal. As with any wheel sealant, surfaces should be clean, dry, and free of oils or contaminants before application to ensure maximum adhesion and longevity. A Trusted Solution for Three-Piece Wheels Whether assembling new modular wheels or resealing an existing set, DOWSIL 732 Silicone Sealant is a proven choice for professional wheel builders and serious enthusiasts alike. It provides the confidence that your three-piece wheels will hold air reliably while maintaining a clean, high-end finish over time.
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