MEC Coatings by ThreeBond
ThreeBond pre-applied (MEC) material utilizes microencapsulation technology to coat threaded fasterners, providing powerful locking and sealing characteristics. ThreeBond handles the entire process of coating fasteners - manufacturing the coating material, preparing the fastener for coating and applying the MEC to the fastener at our Ohio facility. Our Ohio facility is ISO 9001 and ISO 14001 certified.
PRECOATED NUTS & BOLTS
BENEFITS OF USING MEC COATING
Eliminate errors: line workers can be certain the adhesive is on the part, in the correct location and correct amount.
Eliminate physical locking mechanisms: such as cotter pins and lock washers.
Reduce chance of skin irritation: dry to the touch
Reduce component costs and assembly time
Easy to use with automation equipment
Anti-tampering agent: leaves a colored residue if the fastener is removed.
MAIN USES: SCREWS, NUTS & BOLTS THAT REQUIRE SEALING AND LOCKING
This processing technique provides fasteners with the sealing and locking function by applying micro-capsulated adhesive on the threaded parts of the bolt in a special process. When the fastener is assembled, the micro-capsule is ruptured and it adheres as a result of a polymerization reaction.
CROSS-SECTION VIEW OF A MEC-PROCESSED PART
With the surface of the threaded part processed by the micro-encapsulated high-reactive adhesive agent, the fastener is coated with the sealant and locking agent.
PRE-APPLIED MEC PRODUCTS
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|Classification||Part Number||Color||Applicable Dimension||Critical Temperature of Heat Resistance||Curing Speed (20-25˚C)||Main Characteristics|
|Low Strength||TB2458||Green||M3 or larger||100˚C||170˚C||0.5-1h||24h||General Screws low adhesive force type easy removal|
|Medium Strength||TB2418||Yellow||M3 or larger||150˚C||170˚C||0.5-1h||24h||General Screws low tightening resistance axial force type
2488 used for nuts
|TB2468||Red||M3 or larger||100˚C||170˚C||0.5-1h||24h|
|TB2488||Aqua||M3 or larger||130˚||N/A||0.5-1h||24h|
|High Strength||TB2448||Blue||M2~M40||160˚C||170˚C||0.5-1h||24h||General screws high adhesive force
2448B & 2478 high heat resistance
|TB2478||Aqua||M3 or larger||130˚C||170˚C||0.5-1h||24h|