Loctite LOC59575 Rtv Silicone Sealant Clear 300 Ml

Product Description

The LOCTITE LOC59575 is a general-purpose, one-part RTV silicone adhesive sealant that cures at room temperature to form a tough, flexible rubber seal. Supplied in a 300 ml (10.15 oz) cartridge, this clear-finish sealant is suited for a wide range of sealing, bonding, and insulating tasks across HVAC, electrical, plumbing, and general construction applications. Licensed trades and maintenance professionals rely on it for fast, reliable sealing without the need for mixing or heat curing. The single-component formula simplifies application and reduces waste on the job site.

This sealant is designed for use in residential and light commercial settings. Typical applications include sealing ductwork joints, vents, flues, and penetrations where an airtight, moisture-resistant seal is required. It also serves as an electrical insulator for protecting wire leads and components from mechanical shock and vibration. Additional uses include sealing doors, windows, trim, signs, and other assemblies where a durable, flexible bead is needed. HVAC technicians, electricians, and plumbers all carry this type of sealant as a standard shop item.

Key Features

• One-part RTV formula cures at room temperature — no mixing required
• Clear finish blends into most surfaces without visible residue
• Flexible rubber seal resists vibration and mechanical shock after cure
• Provides electrical insulation for leads and component connections
• 300 ml cartridge fits standard caulk guns for controlled application
• Suitable for ductwork, vents, flues, doors, windows, and trim

Compatibility

Designed as a general-purpose RTV silicone sealant for use on ductwork, vents, flues, electrical assemblies, and a broad range of building and mechanical system sealing applications.

Installation Notes

Apply using a standard caulk gun to a clean, dry surface free of grease, dust, and loose material. Allow full cure at room temperature before exposing the joint to moisture or mechanical stress. When used near energized electrical components, de-energize the circuit and follow applicable NEC guidelines before application. Wear gloves and ensure adequate ventilation during use, as uncured silicone may cause skin and respiratory irritation.

Technical Specifications

• Volume: 300 ml (10.15 oz)
• Package Weight: 0.864 pounds
• Color: Clear
• Cure Method: Room temperature (RTV)
• Components: One-part
• UPC: 079340595757

Standard Information

• Brand: LOCTITE
• Manufacturer Part Number: LOC59575