Protect your electrical and mechanical installations with the nVent GARDNER BENDER DS-530 Duct Seal Compound. This 5 lb. pug of gray, dough-like material provides a reliable, non-hardening seal for conduit openings, gaps, and holes. Designed specifically to block drafts, dust, moisture, and noise, it is a staple for professionals in the electrical, plumbing, and HVAC trades. This non-curable compound is incredibly easy to handle and "thumb" into place. It adheres to most clean, dry surfaces at temperatures as low as -20°F (-29°C) and maintains its structural integrity without slumping even after an hour at 350°F. With a flash point exceeding 550°F, it offers peace of mind in demanding environments. The DS-530 is formulated to be non-conducting, non-deteriorating, and non-corrosive, ensuring it won't damage metal components or irritate human skin. Its 99% solid, coil-based composition makes it a non-staining and non-toxic solution for general-purpose sealing around the home or job site. Whether you are sealing service mast entries or deadening switch gear panel noise, this duct seal delivers industrial-strength performance. Please note that this material is intended for indoor use and should not be used outdoors. Technical Specifications: Viscosity: ASTM D-217 300g load (7.0–11.0); ASTM DS-S2 100g load (9.0–15.1) Temperature Usage: -20°F to 350°F Flash Point: Over 550°F (285°C) Composition: 99% solid, synthetic polymers and oils with mineral fillers

• EASY TO HANDLE FORMULA - This dough-like material is a thumb-grade sealer designed for easy application, allowing you to shape and "thumb" the compound over holes and gaps without specialized tools.
• VERSATILE CONDUIT PROTECTION - Specifically engineered to seal conduit openings, gaps, and holes against drafts, dust, moisture, and noise in electrical, heating, and cooling applications.
• EXTREME TEMPERATURE RESISTANCE - Adheres at temperatures as low as -20°F (-29°C) and is rated to ensure it will not slump after 1 hour at 350°F (175°C).
• SUPERIOR SAFETY STANDARDS - Features a high flash point of over 550°F (285°C) and is non-toxic, non-corrosive, and non-staining for safe use on most clean, dry surfaces.
• PACKAGING NOTICE – This product may arrive with packaging labeled Gardner Bender as branding transitions to nVent GARDNER BENDER. Product design, specifications, and quality remain unchanged during this rollout.
• DURABLE INDUSTRIAL PROPERTIES - A 99% solid, coil-based compound that is non-deteriorating and non-curable, ensuring it remains permanently soft and reusable if necessary.
• ADVANCED VISCOSITY SPECS - Technically tested for consistency with ASTM D-217 300-gram load (7.0–11.0) and ASTM DS-S2 100-gram load (9.0–15.1) for professional-grade performance.
• NON-CONDUCTIVE ELECTRICAL SEALANT - Non-conducting properties make it ideal for sealing around electrical boxes, flashings, service mast entries, and protecting terminal boxes.
• INDOOR USE ONLY - This gray, dough-like compound is optimized for interior environments to protect against corrosive elements and deaden switch gear panel noise; not for use outdoors.