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LOCTITE® 406 Instant Adhesive

Known as Loctite 406 Prism Instant Adhesive

Features and Benefits

Available sizes:

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.
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.
  • Rapid fixture time on plastic & rubber, including EPDM
  • Assembles difficult-to-bond materials using LOCTITE® SF 770 primer
  • Very low viscosity product for small gaps
  • Reduced hazardous ingredients for improved occupational safety
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE® 406, 20 g Bottle 135436 en-US
IDH: 135436
EAN: 079340406407

Size Case: 20 g Bottle

Quantity: 10.0/case

No documents found

Technical Information

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 - 120.0 °C (40.0 - 250.0 °F )
Physical form Liquid
Recommended for use with Elastomer, Plastic, Rubber
Shear strength, Mild Steel (grit blasted) 15.5 N/mm² (2250.0 psi )
Viscosity, Resin 20.0 mPa·s (cP)

How to

Step by Step Guide

1. Preparation - Cleaning

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.

2. Preparation - Priming

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.

3. Preparation - Activation

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.

4. Application

Apply adhesive onto one side/part.

5. Assembly

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.

Frequently Asked Questions