LOCTITE 518 Flange Sealant

LOCTITE® 518 is a general-purpose, primerless, semi-flexible, form-in-place anaerobic flange sealant. It cures – even in the presence of minor surface contaminants – to seal close-fitting joints between rigid metal flanges, and will flex with minor flange movements. It provides resistance to low pressures immediately after the assembly of flanges and is ideal for use on aluminum substrates where you need very good flexibility. Typically used as a form-in-place gasket for pumps, thermostats, compressors, transmission housings and axle covers, it not only works on active metals (e.g. mild steel) but also on passive substrates, such as aluminum with low copper content. You can expect gap performance to 0.01" (0.25mm).

Specifications:

• Application method: Dispense system, Manual
• Applications: Rigid assembly gasketing, Sealing
• Chemical basis/base: Dimethacrylate ester
• Color: Red
• Cure Type: Anaerobic cure
• Fixture time, Steel: 25.0 min.
• Gap-fill, Unprimed: 0.25 mm

LOCTITE SF 7649 Liquid Activator

LOCTITE® SF 7649 is specially designed to promote the cure speed of LOCTITE® anaerobic adhesives and sealants without any significant loss of joint strength. Ideal for applications with passive metals or inert surfaces and with large bond gaps, it offers great performance at low cure temperatures (< 15°C / < 60°F).

Specifications:

• Application method: Brush, Pre-applied, Spray
• Applications: Anaerobic priming, Gasketing, Pipe sealing, Retaining, Thread sealing, Threadlocking
• Chemical basis/base: Acetone
• Color: Green
• Cure Type: Non-curing