Loctite® 5900 Flange Sealant is a high-performance heavy body RTV silicone specially engineered for use on flanged metal assemblies, including stamped sheet metal covers where high flexibility and oil resistance are essential. This 300 mL cartridge delivers a permanent, flexible seal that resists oils, coolants, and high vibration—ideal for automotive, manufacturing, and MRO environments.
The non-corrosive, low-odor, low-volatility formula provides an instant seal, cures in 24 hours, and offers superior adhesion on metal, plastic, and glass surfaces.
Key Features:
Brand: Loctite®
Model/Part Number: 212184
Product Type: RTV Silicone Flange Sealant
Size: 300 mL (10.14 fl oz) cartridge
Color: Black
Cure Time: Full cure in 24 hours
Form: Heavy body liquid
Odor: Low
Features:
Provides instant oil-resistant sealing
Superior flexibility & long-term durability
Non-corrosive to sensitive metals
Excellent gap-filling and vibration resistance
Applications: Valve covers, oil pans, gearbox covers, and other flanged assemblies
