Instant adhesives
Instant component bonding - low viscosity for tight fitting parts
Exceptionally low-viscosity instant adhesives forming an ultra thin adhesive film for smallest adhesive gaps in seconds (fast-fixturing). Suitable for plastics and elastomeric materials.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
Size Please make your selection 20 g
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- Description
- Technical specification
- Ratings & reviews
- Question & answer
LOCTITE® 406 is a low-viscosity instant adhesive designed especially for the fast bonding of plastics and rubbers. It fixes the adhering components in seconds and hardens very quickly, forming an ultra thin bond. Using the primer LOCTITE® SF 770, the assembly of difficult-to-bond (PP, PE, PTFE) materials is possible.
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Rapid fixture time on plastic and rubber, including EPDM
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Assembles difficult-to-bond materials using LOCTITE® SF 770 primer
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Very low viscosity product for small gaps
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Reduced hazardous ingredients for improved occupational safety
Product category:
Instant adhesives
Technologies:
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Cyanoacrylate
Application method:
Dispense system,Manual
Applications:
Bonding elastomerics,Bonding plastic
Color:
Clear
Cure type:
Moisture cure
Fixture time, Steel:
30.0 sec.
Gap fill:
0.12 mm
Key characteristics:
Fixture: fast fixture,Viscosity: low viscosity
Operating temperature:
-40.0 °C - 120.0 °C (40.0 °F - 250.0 °F)
Physical form:
Liquid
Recommended for use with:
Elastomer,Plastic,Rubber
Resin: Viscosity:
20.0 mPa·s (cP)
Shear strength, Mild Steel (grit blasted):
15.5 N/mm² (2250.0 psi)
How to use
It is recommended to use the correct LOCTITE® cleaner for the surface to be bonded (such as LOCTITE® SF 7070) to degrease and clean surfaces prior to applying the adhesive.
To improve adhesion on difficult to bond plastic surfaces, apply LOCTITE® SF 770 to the bond area by brushing or dipping. Avoid applying excess primer. Allow the primer to dry.
If cure speed is too slow, use appropriate activator LOCTITE® SF 7452 (see cure speed vs activator graph in TDS). Apply activator to one bond surface by spray, brush or dipping (not primed surfaces). Allow the activator to dry.
Apply adhesive onto one side/part.
Assemble parts immediately. The parts should be accurately located as the short fixture time leaves little opportunity for adjustment. Bond should be held or clamped until the adhesive has fixtured.
Hint: if necessary, excess product can be cured by activator LOCTITE® SF 7452. Spray or drop activator onto excess product.
For precise dispensing of small amounts of adhesive, the use of dispensing needles is recommended.
FAQ
Although HQ is not part of the product formula for LOCTITE® 406, trace amounts are possible due to shared manufacturing processes and/or select raw material impurities. Hence, Henkel has taken the additional step of introducing a low specification level (< 50 PPM for HQ) and each batch is now checked for this after manufacture.
Henkel has several products available with varying levels of NSF® approval, amongst others. Please contact the Henkel sales or technical teams with your requirements.
This is a result of stress cracking. Leaving uncured liquid CA remaining on some plastic substrates (such as polycarbonate, acrylic, and polysulfone) in a stressed condition, may cause the formation of cracks in the plastic. Some remedies for avoiding/minimizing stress cracking are closing the bond joint quickly, using reinforced grades of plastic, anneal parts, or speed the cure of the adhesive with accelerator or light (for light cure products only).
All necessary H&S measures and PPE (personal protection equipment) requirements can be found on the product material safety data sheet, all of which are available via our website.
Yes, instant adhesives should be stored in the refrigerator prior to opening, but DO NOT refrigerate them once they have already been opened. After opening, the product should be used within 30 days for best performance.
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