LOCTITE TW 040 is part of a series of henkel resin-bonded lubricant coatings that are specifically engineered to offer dry film lubrication and release properties. These coatings find application in various industrial and original equipment automotive settings. LOCTITE TW 040 is characterized by its deep black, matte-finish appearance, and it performs at a level equivalent to industry-standard coatings. Additionally, it contains a UV tracer, serving as an application aid to confirm the proper deposition of the coating onto the extruded profile.

Supplied By: Henkel Corporation

Product Code: H01876

Regional Availability: Canada

Product Type: 2K (2 component) Coating, Lubricant Coating

Features: Dry Film Lubrication, Excellent Hiding Power, Excellent Scuff Resistance, Good Abrasion Resistance, Good Release Properties, High Coverage, Matte Finish, Solvent Resistance, Sound Damping, Wear Resistant

    Enhanced TDS

    Identification & Functionality

    Features & Benefits

    Ready-to-Use Product Features
    Product Highlights
    • It is an excellent choice for protecting primary and secondary weatherstrip seals due to its premium abrasion resistance and squeak and itch prevention.
    • Functional performance of seals for ice release, scuff resistance and solvent resistance is enhanced with this.
    • This coating is well suited to protect EPDM rubber from glass abrasion in automotive window channel applications.
    • The cured coating is flat black in appearance, flexible, excellent in wear resistance, and not abrasive to painted surfaces.
    • The ease with which is prepared and sprayed onto parts allows for maximum productivity and uptime.
    • Its excellent hiding power allows for more usable profile as surface imperfections are covered.
    Features and Benefits


    • Effective noise-suppression for most environments and seal designs.
    • Multiple usage for sponge and dense seal substrates.
    • UV tracer content
    • Good coverage properties for covering surface defects


    • Customer satisfaction in minimizing squeak and itch annoyance
    • Inventory simplification for cost-effective operations
    • Confirms application of coating onto seal, avoiding costly scrap
    • Less scrap production, increasing revenues and lowering operational costs

    Applications & Uses

    Application Area
    Compatible Substrates & Surfaces
    Product End Uses
    Recommended Applications
    • Vinyl extrusions
    • Vinyl molded parts
    • Rubber extrusions
    • Door, trunk, and sunroof gaskets
    • Rubber molded parts
    • Weatherstripping (EPDM)
    Cleaning Information


    • 575 ft2/gal at 1 mil (25 μm)


    • Typical cure schedule:
      • 3 minutes at 177°C (350°F)
      • 5 minutes at 149°C (300°F)
    • This information is only a guide to curing, and your curing system may take more or less time to cure on your substrate.

    Clean Up:

    • Use cool water to flush lines and guns.
    Directions of Use


    • It is a two-component coating.
    • Mix only the amount of coating to be used within 12 hours with Loctite TW 422 crosslinker or within 30 days with TW 423 crosslinker.
    • Mix until uniform. With component “A” mixing, slowly blend component “C” into component “A” (5 parts by weight of component “C” into 95 parts by weight of component “A”).
    • To avoid foaming, do not use high-speed mixers or shakers.


    • It is designed to be spray-applied in-line onto warm to hot rubber extrusions, or molded parts that have a surface temperature less than 93°C (200°F).
    • For best adhesion, surface pretreatment with corona, plasma or primer is required prior to applying LOCTITE TW 040.
    Recommended Film Thickness
    • Applicable for meeting most OEM coating specifications upon adequate cure and application
    Property Minimum Film
    General protection 10 um (0.4 mil)
    Noise suppression 10 um (0.4 mil)
    Ice release 10 um (0.4 mil)
    Glass abrasion 20 um (0.8 mil)
    High abrasion 20 um (0.8 mil)
    • Final required film thickness and performance are dependent on seal/vehicle architecture and substrate properties such as hardness, smoothness and surface chemistry.
    • Best glass run abrasion resistance is usually achieved at 25-30 μm dry film thickness.

    Safety & Health

    Health and Safety Precautions
    • Harmful if swallowed, inhaled, or absorbed through skin.
    • May cause eye irritation. Wash thoroughly after handling.
    • Keep container tightly closed when not in use. Use with adequate ventilation.
    • Avoid breathing vapor.

    Packaging & Availability

    Packaging Type
    Regional Availability
    • Canada

    Storage & Handling

    Shelf Life
    12 months
    Storage Conditions
    • Shelf life for this product is 12 months from date of qualification under original seal, when stored between 10°-27°C (50°-80°F).
    • Return to room temperature and stir gently before using.
    • Do not freeze. Keep container tightly closed when not in use.
    • Store in a cool, well ventilated area.
    • Empty containers may retain hazardous properties.