Pro-source 144118 Rtv Silicone Sealant 8 Oz White

Product Description

The PRO-SOURCE 144118 is an 8 oz white RTV silicone sealant formulated for sealing, gasketing, and repair applications across HVAC, plumbing, and general mechanical work. RTV silicone cures at room temperature when exposed to atmospheric moisture, forming a flexible, durable seal. This product reaches full cure in 24 hours. It is typically applied by HVAC technicians, plumbers, and general maintenance professionals wherever a flexible, moisture-resistant silicone seal is required. The white color makes it suitable for visible joints where aesthetics matter alongside performance.

This sealant is well suited for residential and light commercial applications including duct connections, pipe penetrations, gasket fabrication, and fixture sealing. The 8 oz container size is practical for service technicians carrying stock on a van or keeping a supply at a shop. It works on a wide range of substrates commonly encountered in mechanical and plumbing installations.

Key Features

• RTV silicone chemistry cures at room temperature with atmospheric moisture exposure
• Full cure reached in 24 hours
• 8 oz container — practical for field service or shop use
• White color suits visible joints and finished surfaces
• Flexible cured seal accommodates thermal expansion and vibration

Compatibility

Designed as a general-purpose RTV silicone sealant suitable for typical HVAC, plumbing, and mechanical sealing applications on compatible substrates.

Installation Notes

Apply only to clean, dry surfaces free of oil, grease, and loose debris. Ensure adequate ventilation during application, as RTV silicone releases acetic acid vapors while curing. Allow the full 24-hour cure time before exposing the joint to fluid pressure or mechanical stress. Installation should follow applicable local codes and the system manufacturer's guidelines for sealant use.