I can not think of a single business that operated and maintained a PSM/RMP-covered process that did not utilize LOCTITE®. It is a beautiful product; however, it may be the most overused and abused product within the covered process. When used PROPERLY and per Henkel’s instructions, the product works well. But like most really good products, it eventually leads to misuse in the hopes that it can solve problems that it was NEVER intended to solve. Shortcuts in the proper application of this product can lead to LOPC events, so attention to detail is necessary. For example… did you know that most metals REQUIRE the LOCTITE® “primer” to be used?
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Another variable that should be considered is the substrate in which the adhesive will be applied. For certain substrates or other special requirements, the use of primer is recommended. WHY USE A PRIMER? 1. Primers activate inactive surfaces. 2. Primers speed cure times for faster return to service. 3. Primers speed curing through larger gaps and deep threads. 4. Primers substantially speed cure times on cold parts. 5. Primers act as cleaning agents. Active surfaces (Primer optional): Brass, copper, bronze, iron, soft steel, nickel. Inactive surfaces (PRIMER REQUIRED): Aluminum, stainless steel, magnesium, zinc, black oxide, cadmium, titanium, others. |
* emphasis by me
Where LOCTITE® is applied matters
LOCTITE® comes in different strengths
LOCTITE® can not be used for “puncture repair” at pressure over 145 psi
LOCTITE® has curing times based on pressures within the containment system
LOCTITE® has limitations for some LIQUIDS, SOLUTIONS & SUSPENSIONS (material compatibility is KEY!)
LOCTITE® MANUFACTURING RELIABILITY WORKSHOP is a training course by Henkel to ensure their product is used and applied properly.
Source: https://dm.henkel-dam.com/is/content/henkel/Do-It-Right-Guide_IN_IMRMAA