HENKEL BRAND

Loctite Precision adhesives & sealants

The leading brand for anaerobic adhesives, retaining compounds, structural bonding, gasketing, and screen-printable electronic inks and coatings. Backed by Henkel R&D and delivered by HeTone with local support.

Loctite products
Brand Overview

Loctite, a Henkel brand, sets the standard in anaerobic adhesives, with over 60 years of innovation in threadlocking, retaining, gasketing, and structural bonding. Engineers worldwide trust Loctite for mission-critical assemblies in automotive, electronics, and heavy industry.

HeTone stocks the most popular Loctite SKUs in Taiwan and provides design-in assistance for new applications. Whether you need a drop of threadlocker for an M3 screw or a drum of retaining compound for a motor production line, we deliver the right product at the right time.

The line-up now extends to the LOCTITE EDAG electronic inks and coatings family: screen-printable conductive, resistive, and electrode inks for membrane switches, touch panels, printed resistors, flexible heating elements, ESD shielding, and flexible circuits, complemented by instant, light-cure, and thermally conductive adhesives for electronics assembly.

Product Series

Featured product families.

Retaining Compounds

Anaerobic adhesives that cure in the absence of air between close-fitting metal parts. Bond bearings, bushings, and cylindrical assemblies with controlled strength.

Up to 25 MPa shear

Threadlockers

Color-coded by strength: purple (low), blue (medium), red (high), green (wicking). Prevent loosening from vibration while enabling controlled disassembly.

3 strength levels

Encapsulants & Potting

STYCAST and HYSOL epoxy systems for electronics potting, conformal coating, and structural encapsulation. Outstanding moisture and chemical resistance.

STYCAST / HYSOL

Conductive Inks and Coatings

Screen-printable EDAG graphite, carbon, and silver inks plus resistive pastes for membrane switches, printed resistors, flexible heaters, ESD shielding, and flexible circuits on PET film and rigid PCB.

EDAG E&C family

Instant and Light-Cure Adhesives

General-purpose and gel cyanoacrylates that fixture in seconds, plus ISO 10993-tested UV and visible-light-cure acrylics for medical device assembly.

Fixture in 5-12 s

Thermally Conductive Adhesives

One-part adhesives that bond and dissipate heat in a single step for transformers, power transistors, and other heat-generating components, with room-temperature cure options.

0.8 W/mK
In Depth

A closer look.

LOCTITE EDAG 423SS E&C conductive ink pail and jar

EDAG inks bring circuits onto film.

Screen-printable conductive, resistive, and electrode inks deposit functional circuitry directly onto PET film and rigid PCB, the material layer behind membrane switches, printed resistors, flexible heaters, and ESD shielding.

  • Graphite, carbon, and silver conductor systems
  • M2000RS resistor pastes blend from 10 to 1,000 ohm
  • Ag/AgCl electrode ink for medical sensors
LOCTITE 243 medium-strength threadlocker bottle

Threadlockers, color-coded by strength.

Anaerobic threadlockers fill the gap between fastener threads and cure to a tough thermoset, keeping bolts tight through vibration while still allowing service with hand tools.

  • LOCTITE 222 low-strength for small and adjustment screws
  • LOCTITE 242 and 243 medium-strength, oil-tolerant workhorses
  • LOCTITE 2422 for high-temperature and stainless fasteners
LOCTITE 648 high-strength retaining compound bottle

Retaining strength for cylindrical fits.

LOCTITE 648 locks bearings, gears, sprockets, and rotors onto shafts with a high-strength anaerobic bond that fills the entire contact area, preventing micro-movement and fretting wear.

  • Withstands service temperatures up to 180 C
  • Tolerates lubricants and cutting fluids, no primer needed
  • UV fluorescence supports in-line quality inspection
LOCTITE 401 general purpose instant adhesive bottle

Fixture in seconds, on almost anything.

Instant adhesives cover fast production bonding across metals, plastics, rubber, and porous materials, and the family extends to light-cure acrylics qualified for medical device assembly.

  • LOCTITE 401 fixtures steel in about 5 seconds
  • LOCTITE 454 gel holds on vertical and porous surfaces
  • LOCTITE AA 3321 light-cure acrylic, ISO 10993 tested
LOCTITE 384 thermally conductive adhesive cartridges

Bond and cool in a single step.

LOCTITE 384 is a one-part thermally conductive adhesive that attaches transformers, power transistors, and other heat-generating components while carrying heat away from them.

  • 0.8 W/mK thermal conductivity in a structural bond
  • One-part, no mixing, with room-temperature cure options
  • Suited to production staking and field repair alike
Key Models

Representative models we stock.

These are selected highlight SKUs, contact us for the full catalogue and custom cut sizes.

ModelTypeKey SpecApplication
LOCTITE 243ThreadlockerMedium, oil-tolerantGeneral fastener security
LOCTITE 263ThreadlockerHigh-strengthCritical bolted joints
LOCTITE 222ThreadlockerLow-strength, easy disassemblySmall and adjustment screws
LOCTITE 242ThreadlockerMedium-strength, general purposeEveryday metal fasteners
LOCTITE 2422ThreadlockerMedium, high-temperatureStainless and plated fasteners
LOCTITE 648RetainingHigh-strength, rapid cureBearing/shaft press-fit
LOCTITE 638RetainingHigh-strength, gap-fillingSlip-fit assemblies
LOCTITE 5188Flange SealantFlexible anaerobicGearbox/engine flanges

Looking for the right Loctite adhesive for your application?

Send us your thermal requirements, we will recommend and validate the right material combination for your design.