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LOCTITE EA 3421 A+B

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Universal 2-component epoxy adhesive

LOCTITE EA 3421 A+B is an epoxy adhesive from the Loctite brand. Available in 50 ml containers.

Price on request

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LOCTITE Epoxy Adhesive Range Review 2026

 
General Terms and Conditions

Shipping usually within 1 to 3 business days
(Availability confirmed after order)

Express logistics. Fast and reliable within Switzerland & Europe

From Swiss stock Dispatch within 24h Batch certificate Invoice 30 days (B2B) Technical advice
Shipping & Delivery

Usually 1 to 3 business days

Availability is confirmed after order receipt.

Express logistics within Switzerland & Europe.

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Product data

Internal reference: 49-50041017.ML050


Internal reference: 49-50041017.ML050

LOCTITE EA 3421 A+B
LOCTITE EA 3421 A+B
Loctite · SKU 49-50041017.ML050

LOCTITE® EA 3421 – Universal 2-component epoxy adhesive for metals, plastics, glass & wood

LOCTITE® EA 3421 is a high-quality, two-component epoxy adhesive with a long working time, medium viscosity, and excellent moisture resistance. The product is ideally suited for structural bonding on metal, ceramic, wood, glass, thermosets , and many other substrates.

Thanks to its slow curing at room temperature, LOCTITE EA 3421 offers sufficient time for adjustment, making it ideal for large-area bonding and demanding industrial applications.

Properties:

  • 2-component epoxy resin | Mixing ratio: 1:1 (volume)
  • Processing time: 30–150 minutes (at 25 °C, 200 g batch)
  • Handling strength: after approx. 4 hours at 22 °C
  • Final strength: after approx. 36 hours at room temperature
  • Shore D hardness: 70–80
  • Tensile strength: up to 28 N/mm²
  • Shear strength: up to 25 N/mm² (steel)
  • Glass transition temperature: approx. 55 °C
  • Electrically insulating (contact resistance: 10¹⁵ Ω·cm)

Applications:

  • Structural bonding in mechanical engineering, electronics, and vehicle construction
  • Bonding of metal, wood, GRP, ceramics, plastics (e.g. ABS, PC)
  • Resistant to water, oil, acids and moisture

Advantages:

  • Long open time, ideal for precise alignment
  • Good resistance to aging, temperature and media
  • Universally applicable in industry and trade
  • Can be processed directly from a double cartridge

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LOCTITE Epoxy Adhesive Range Review 2026

Technical data for LOCTITE EA 3421 A+B

All 6 product information 3 Physical properties 2 General 1
Product Information
Container 50 ml
Product type Industrial adhesives
Brand Loctite
Physical Properties
Alignment time 240 minutes
Color light amber
General
Technology names Thermosets, 2-component epoxy resin

Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.

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Product Specifications

Product Information
Container 50 ml
Product type Industrial adhesives
Brand Loctite
Physical Properties
Alignment time 240 minutes
Color light amber
Uncategorized
Technology names Thermosets, 2-component epoxy resin
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LOCTITE Epoxy Adhesive Range Review 2026