From extensive testing with Loctite™ and similar products we have established the following common sense rules for useage that need to be followed for effective outcomes when using these locking compounds:

The common characteristics of these materials is that they will harden when there is an absence of oxygen AND the presence of a metal which includes stainless steel.

• Both male and female threads must be clean and dry
• Locking fluid must be applied to ensure both threads are fully covered
• The presence of the material is more important than the grade
• Both medium strength blue and high strength red are very effective
• These compounds will set underwater inside 24 hours
• To mount underwater you should use the newer Loctite™ Stick grade

When utilised under the above conditions these types of material  will provide very secure locking over long periods of time.Our testing covers the following products

• Loctite™  242 - Blue medium strength
• Loctite™  272 - Red permanent grade
• Loctite™  249 - Tape
• Loctite™  Stick Grade - Refer next web page Loctite™ underwater for tests and results
• Permabond  A1042
• Permatex  - Blue
• Vibra-Tite  VC-3 Threadmate