3 Oz Black Silicone

The PERMATEX 3 Oz Black Silicone sealant is a professional-grade adhesive formulated for sealing, bonding, and weatherproofing applications across automotive, industrial, and household environments. This versatile silicone compound creates a durable, flexible barrier that resists moisture, temperature extremes, and UV exposure, making it essential for technicians, mechanics, DIY enthusiasts, and maintenance professionals who require reliable long-term performance. Black silicone sealants are specifically designed for applications where color matching or aesthetic blending with dark substrates is critical.

This sealant operates by forming a flexible, elastomeric bond that accommodates material expansion and contraction without cracking or peeling. The 3 oz tube format delivers controlled application through a standard caulking gun, ensuring precision placement on seams, joints, and surface gaps. Silicone-based adhesives cure through moisture exposure, developing waterproof and temperature-resistant properties that function reliably from -40°F to over 350°F in many applications. The black pigmentation integrates seamlessly with dark-colored materials, automotive trim, gaskets, and industrial seals while maintaining the underlying silicone's protective chemistry.

Professionals rely on PERMATEX silicone sealants for engine gasket assembly, RV and marine weatherproofing, automotive trim bonding, and equipment maintenance where water ingress and thermal cycling present ongoing challenges. The compact 3 oz tube size fits standard caulking guns and suits both full-scale projects and repair work. Installation compatibility extends across metal, glass, ceramic, painted surfaces, and plastic substrates; always verify material compatibility and allow adequate cure time before subjecting sealed joints to water or temperature stress. This product is ideal for those seeking professional-grade sealing performance in a convenient, single-use tube format.