Epoxies

AL-428

Two-Part, High Temp. & Humidity Resistant and Low Exothermic Epoxy, Passes NASA Outgassing

Download TDS Sheet
Quantity
For bulk orders, please contact us.
Custom packaging available upon request.
DESCRIPTION

AL428 is a two part, heat-resistant and low exotherm, epoxy adhesive formulation.  It is a 100% solid epoxy adhesive, with superior chemical resistance and shear strength. AL428 contains a thixotrophic agent which impedes thinning out of the material during heat cure when properly mixed and cured.

AL428 passes NASA’s outgassing testing (ASTM E-595) and is listed in NASA’s Outgassing Data for Selecting Spacecraft Materials list.

FEATURES AND BENEFITS
  • Passes NASA’s outgassing testing (ASTM E-595) and is listed in NASA’s Outgassing Data for Selecting Spacecraft Materials list

  • Passes 10 day humidity test mil std 8:0 above 95% with condensation

BONDS TO
  • Metals
  • Glass
  • Rubber
  • Ceramics
  • Concrete
  • Phenolic Plastics
APPLICATIONS INCLUDE
Aerospace
Bonding
Properties
Mix Ratio  1:1
Pot Life  40 min. at RT
Color  Amber

Physical Properties
Hardness Shore D 78
Tensile Strength, psi- AL to AL 2700
Service Temperature, °C -40 to 163
Cure Schedule

20 min. @ 177°C

30 min. @ 121 °C

80 min. @ 93°C

4-6 hrs. @ 66 °C
Other Infomation
  • For more information and properties on this product, download TDS above
  • Contact us for SDS

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SECURE PAYMENT

TECH EXPERTISE

Alfa International

Alfa International
32 Mechanic Ave
Unit 99
Woonsocket, RI 02895
Telephone: +1-401-765-0503
Fax: +1-401-765-0508

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