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Product description:
LOCTITE EA 3421 is a two component epoxy adhesive which cures slowly at room temperature after mixing. It is a general purpose, flowable adhesive which develops high strength and has excellent moisture resistance. The long working life and medium viscosity make this adhesive system suitable for large surfaces and where adjustment time is needed after assembly. Further information about the product: biuro@woronko-kleje.pl

Steps to achieve the best adhesive results:
1. For best performance surfaces for bonding should be clean, dry and free of grease. You can use LOCTITE SF 7063. For high strength structural bonds, special surface treatments can increase the bond strength and durability.
2. To use, resin and hardener must be blended. Product can be applied directly from dual cartridges by dispensing through the mixer head supplied. Discard the first 3 to 5 cm of bead dispensed. Using bulk containers, mix thoroughly by weight or volume in the proportions specified in the Product Description Matrix. For hand mixing, weigh or measure out the desired amount of resinand hardener and mix thoroughly. Mix approximately 15 seconds after uniform color is obtained.
3. It is recommended that this product is not mixed and cured in bulk quantities of greater than 4 kg as excessive heat build-up can occur. Mixing smaller quantities will minimize the heat build-up.
4. Apply the adhesive as quickly as possible after mixing to one surface to be joined. For maximum bond strength apply adhesive evenly to both surfaces. Parts should be assembled immediately after mixed adhesive has been applied.
5. For working life please see section 'Typical Properties of Uncured Material'. Higher temperatures and larger quantities will shorten this working time.
6. Keep the assembled parts from moving during cure. The joint should be allowed to develop full strength before subjecting to any service loads.
7. Excess uncured adhesive can be wiped away with organic solvent (e.g. Acetone).
8. After use and before adhesive hardens, mixing and application equipment should be cleaned with hot soapy water.

Storage:
Store product in the unopened container in a dry location. Storage information may be indicated on the product container labeling.
Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or greater than 28 °C can adversely affect product properties.
Material removed from containers may be contaminated during use. Do not return product to the original container.
Henkel Corporation cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated.

Parameters:
Time to get full strength on steel at the gap 0,05 mm :
  • Temperature 25 °C : 36 hours
  • Temperature 40 °C : 15 hours
  • Temperature 80 °C : 20 minutes
  • Temperature 100 °C : 10 minutes

Typical properties of cured material :
  • Hardness (Shore D) : 70 to 80
  • Tensile strength (N/mm²) : 28
  • Elongation % : 6
  • Elastic modulus (N/mm²) : 963
  • Working temperature : od -55 °C to +100 °C

Shear strength after 7 days (temperature 23 °C) :
  • Steel shot-blasted : 23 N/mm²
  • Stainless steel : 11 N/mm²
  • Zinc coating (electrolytically) : 10 N/mm²
  • Honed aluminum : 10 N/mm²
  • Aluminum (etched) : 10 N/mm²
  • Zinc coating (dip) : 1,2 N/mm²
  • Brass : 3,5 N/mm²
  • GRP : 0,75 N/mm²
  • Phenolic rubber : 3,5 N/mm²
  • ABS : 0,75 N/mm²

Full technical information can be found in the technical data sheet.

Assortment