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Loctite 406 - plastic and rubber bonding adhesive

LOCTITE 406 – Fast-Bonding Instant Adhesive for Plastics & Rubber

LOCTITE 406 is a one-component, low-viscosity cyanoacrylate instant adhesive specially developed for fast bonding of plastics, rubber and elastomeric materials. It forms an ultra-thin adhesive film and provides rapid fixture, making it suitable for applications where components need to be assembled quickly.

Its very low viscosity allows the adhesive to penetrate and bond closely fitting surfaces and small bond gaps. LOCTITE 406 cures through atmospheric moisture and is supplied ready to use without mixing.

Key Features of LOCTITE 406:

  • Very fast fixture on plastics and rubber

  • Low-viscosity formulation for tight-fitting components

  • Clear, liquid cyanoacrylate adhesive

  • One-part adhesive—no mixing required

  • Suitable for plastic, rubber and elastomer bonding

  • Excellent for small bond gaps

  • Can be used with LOCTITE SF 770 primer for difficult-to-bond plastics such as PP, PE and PTFE

Typical operating temperature range: -40°C to +120°C

Gap fill capability: approximately 0.12 mm

Typical viscosity: approximately 20 mPa·s

LOCTITE 406 Applications:

LOCTITE 406 is particularly suitable for industrial assembly and maintenance applications requiring rapid bonding.

Typical applications include:

  • Bonding rubber components

  • Bonding plastic parts

  • EPDM rubber bonding

  • Sealing or bonding closely fitting components

  • Small component assembly

  • Gasket and elastomer assembly

  • Electrical and electronic component assembly

  • Appliance and industrial component manufacturing

  • Repair and maintenance applications

Henkel specifically identifies LOCTITE 406 for bonding elastomeric and plastic materials, including rubber and EPDM

Technical Specifications

Property: LOCTITE 406

  • Adhesive Technology - Cyanoacrylate

  • Chemical Type - Ethyl cyanoacrylate

  • Components - One-part

  • Appearance - Clear

  • Cure Type - Moisture cure

  • Viscosity - Approx. 20 mPa·s (cP)

  • Fixture Time on Steel - Approx. 30 seconds

  • Gap Fill - Approx. 0.12 mm

  • Operating Temperature -40°C to +120°C

  • Recommended Substrates - Plastic, Rubber, Elastomer

How to Use LOCTITE 406:

1. Clean the surfaces

Remove oil, grease, dust and other contaminants. Henkel recommends using an appropriate LOCTITE cleaner for surface preparation.

2. Apply primer when required

For difficult-to-bond plastics such as PP, PE and PTFE, LOCTITE SF 770 primer can be used to improve adhesion

3. Apply LOCTITE 406

Apply a small amount of adhesive to one of the surfaces. Because the product has very low viscosity, only a small quantity is generally required.

4. Assemble immediately

Bring the components together and hold them in position until the adhesive fixtures.

5. Allow full curing

Although rapid fixture is achieved, the adhesive continues to develop its final properties after initial bonding.

Why Choose LOCTITE 406?

LOCTITE 406 is a good choice when speed, low viscosity and plastic/rubber compatibility are important. Its rapid fixture and ability to form a thin adhesive layer make it particularly useful for close-fitting components and high-speed assembly processes.

For difficult-to-bond plastics, using the appropriate primer can further expand its application range.

Buy LOCTITE 406 in India

Si Concepts supplies industrial adhesive solutions including LOCTITE products for manufacturing, maintenance, repair and assembly applications.

Product: LOCTITE 406 Instant Adhesive

Technology: Cyanoacrylate

Applications: Plastic, rubber and elastomer bonding

Packaging: Available in selected pack sizes

Contact Si Concepts for LOCTITE 406 availability, pricing and technical assistance.

Frequently Asked Questions

What is LOCTITE 406 used for?

LOCTITE 406 is primarily used for fast bonding of plastics, rubber and elastomeric materials, particularly where closely fitting parts and rapid fixture are required.

Is LOCTITE 406 suitable for rubber?

Yes. It is specifically designed for bonding rubber and elastomeric materials, including EPDM.

Henkel Adhesives

Can LOCTITE 406 bond plastic?

Yes. It is designed for fast plastic bonding. For difficult plastics such as PP, PE and PTFE, LOCTITE SF 770 primer can be used.

Is LOCTITE 406 a two-part adhesive?

No. LOCTITE 406 is a one-part instant adhesive and does not require mixing.

What type of adhesive is LOCTITE 406?

It is a cyanoacrylate instant adhesive, also commonly known as a super glue-type adhesive.

What is the temperature resistance of LOCTITE 406?

Henkel lists an operating temperature range of approximately -40°C to +120°C for the current product information.

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Quick Answers

What is Loctite 406?

It’s an instant adhesive made for bonding plastic and rubber quickly.

How fast does it dry?

Loctite 406 bonds within seconds, making it perfect for fast repairs.

Is it safe for all plastics?

It works well on most plastics and rubber, but testing on your specific material is recommended.

Keep the adhesive in a cool, dry place away from direct sunlight.

How should I store it?
Can I use it outdoors?

Yes, but prolonged exposure to moisture may affect the bond strength.