SECURE AND SEAL METAL JOINTS
Anaerobic adhesives for metal joints
Anaerobic adhesives cure in contact with metal when air is excluded. The range includes threadlockers and a bonding sealant; choose according to the joint's function, future disassembly and the conditions of application and use.
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Selection criteria
What must the metal joint do?
Does the joint need to prevent a screw from loosening, or must it form a seal? The listed threadlockers differ in strength and intended removability. Anaerobic adhesives cure in contact with metal when air is excluded, so check the parts being joined, the thread, surface condition and application instructions for the specific product. Choose a bonding sealant for its sealing function, not simply for the shared curing mechanism.
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ANAEROBIC RANGE
Anaerobic adhesives and bonding sealants in the range
The filterable listing shows the products assigned to this category. These include anaerobic threadlockers and a bonding sealant; check each product description for its function and application.
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CHOOSE BY JOINT FUNCTION
Assess strength, disassembly and sealing function
For serviceable threaded joints, balance the required locking strength against future maintenance: 3M Scotch-Weld TL42 is described as a medium-strength threadlocker, while TL43 is medium to high strength and slightly oil tolerant. Three Bond 1133E, by contrast, is an anaerobic bonding sealant for threads and flanges. Their shared cure without air does not make these functions interchangeable. Compare the product information for surfaces, loads, media and conditions of use. Full cure time is product specific; a value for one product does not apply to the entire range.
For a closer look at retaining a threaded joint, see threadlocking; for sealing a thread, see thread sealing. Tell us about the parts, thread or flange, required removability and conditions of use so we can assess the suitability of the specific product with you.
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QUESTIONS ABOUT ANAEROBIC ADHESIVES
How do anaerobic adhesives cure?
Anaerobic adhesives cure when air is excluded and they are in contact with metal. The curing mechanism is separate from the number of components: the TL42 and TL43 threadlockers documented here are single component products. The actual metal parts and the conditions in the gap or thread matter when choosing a product. An exposed adhesive layer cannot be treated as equivalent to an enclosed metal joint. Check the application instructions and suitability of the specific product for your parts.
When can a threadlocked joint be disassembled?
Whether a joint can later be disassembled depends on the selected strength and application. 3M describes TL42 as a medium-strength anaerobic threadlocker for joints that need to be removed with hand tools for maintenance. TL43 is described as medium to high strength. Neither description guarantees a result for every screw, substrate or removal method. State whether maintenance is planned and what loads the joint will face so the specific product can be chosen accordingly.
What is the difference between a threadlocker and a bonding sealant?
A threadlocker is intended to prevent a threaded joint from loosening unintentionally; a bonding sealant primarily seals the joint. In this range, 3M Scotch-Weld TL42 and TL43 are documented as threadlockers. Three Bond 1133E is described as an anaerobic bonding sealant for large threads and flanges. A shared curing mechanism does not replace a check of the required function. Explain whether the joint needs locking, sealing or both under specified conditions, then check the evidence for the particular product.
What information helps us choose an anaerobic product?
Tell us which parts and surfaces will be joined, the joint geometry and whether the main function is locking or sealing. Include the loads, exposure to media, conditions of use and whether the joint must later be removable with tools. The planned application process and the point at which the joint needs to carry a load also matter. Cure times refer to individual products under stated test conditions and cannot be transferred across the range. Krückemeyer GmbH can use these details to assess the product choice with you.
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Request advice
Describe the metal parts, surface, joint function, loads and required disassembly. We will compare your requirements with the intended threadlocker or bonding sealant and check the product information for your application process.
Choose the right anaerobic joint
Function, parts and future disassembly determine the choice. Discuss your application with Krückemeyer GmbH or collect specific items in the enquiry list.
ANAEROBIC ADHESIVE ADVICE
Thomas Klein
Contact for products
Thomas Klein will discuss the function of your metal joint and the choice of a suitable anaerobic product with you.