TremPro® 644 RTV Silicone Sealant is a high-performance, one-component, neutral-cure silicone designed for reliable sealing between nonporous materials such as glass, aluminum, metal, and metal alloys. Its flexible, long-lasting bond makes it ideal for both industrial and residential applications, including HVAC, plumbing, and kitchen or bath fixtures. TremPro 644 RTV delivers outstanding weather resistance, adhesion, and durability, maintaining elasticity without shrinking or cracking over time. Suitable for on-site use where a gun-grade sealant is required, it ensures a professional finish in demanding environments. Available in assorted colors — Aluminum (T614A), Black (T614B), Clear (T614C), and White (T614W) — each 300ml tube is sold in 12- or 25-tube packs.

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