MEC Coatings by ThreeBond
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
Environmentally friendly
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
= Download Technical Data Sheet
← scroll to see table data →
Classification | Part Number | Color | Applicable Dimension | Critical Temperature of Heat Resistance | Curing Speed (20-25˚C) | Main Characteristics | ||
Locking | Sealing | Working | Final | |||||
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 |
TB2448B | Orange | M2~M40 | 160˚C | 170˚C | 0.5-1h | 24h | ||
TB2478 | Aqua | M3 or larger | 130˚C | 170˚C | 0.5-1h | 24h |