Rectorseal 93520 Duct Seal Compound 1 Pound Dark Gray

Product Description

The RECTORSEAL 93520 is a non-hardening duct seal compound supplied in a 1-pound slug box. It is a pliable, reusable putty formulated to create airtight and watertight seals around conduit entries, junction boxes, pipe penetrations, and tubing openings. The compound maintains flexibility and adhesion across variable temperature and environmental conditions without drying, cracking, or shrinking. It is suitable for both indoor and outdoor installations and is commonly specified by HVAC technicians, electricians, plumbers, and refrigeration service technicians wherever a durable mechanical seal is required at a penetration point.

The 93520 is used across a wide range of trade applications including HVAC ductwork penetrations, electrical conduit entries into enclosures or junction boxes, plumbing rough-in penetrations, and refrigeration line set entry points. Its dark gray color blends with common substrates in both residential and light commercial installations. The compound is ready to use directly from the box with no mixing or curing required, making it practical for field service work.

Key Features

• Non-hardening formula stays pliable and reusable after installation
• Creates airtight and watertight seals at penetrations and conduit entries
• Suitable for HVAC, electrical, plumbing, and refrigeration applications
• Resists drying, cracking, and shrinking under variable temperature conditions
• Rated for indoor and outdoor use
• Ready to use from the box with no mixing or cure time required

Compatibility

Designed as an OEM-style duct seal compound for use at conduit entries, junction boxes, pipe penetrations, and tubing openings in residential and light commercial HVAC, electrical, plumbing, and refrigeration systems.

Installation Notes

This compound is typically installed by licensed HVAC technicians, electricians, or plumbers as part of a rough-in or service call. Power down electrical circuits and shut off gas or water supply before working at any penetration point. The compound is hand-applied by pressing it firmly around the penetration to form a continuous seal with no gaps. Consult NEC and IFGC requirements for specific penetration sealing standards applicable to your jurisdiction.

Technical Specifications

• Weight: 1.1 pounds
• Length: 6.00 inches
• Width: 3.20 inches
• Height: 2.10 inches
• Color: Dark Gray
• Country of Origin: United States

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: 93520