EPOCAST® 89537 A/B

EPOCAST® 89537-A/B epoxy syntactic is a two-part system with glass-fiber reinforcement that can be troweled or extruded into honeycomb core structures for fastener and attachment potting, core splicing, and edge reinforcing. The syntactic has a non-sag consistency that allows for vertical application up to ½-inch (1.25 cm) thick. EPOCAST® 89537 A/B epoxy syntactic is self-extinguishing and meets the requirements of BMS 5-28 Type 32.

RTU Product Type: Potting Resin System, Void Filler

Chemical Family: Epoxy & Epoxy Derivatives

Features: Fiberglass Reinforced, Flame Retardant, Low Density, Non-Sagging, Pourable, Self-extinguishing Characteristics

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Enhanced TDS

Identification & Functionality

Chemical Family
Epoxy & Epoxy Derivatives
RTU Product Type
Potting Resin System,
Void Filler
Technologies
Composite Materials
Product Families
Composite Materials — Resin Systems
Potting

Features & Benefits

Ready-to-Use Product Features
Fiberglass Reinforced,
Flame Retardant,
Low Density,
Non-Sagging,
Pourable,
Self-extinguishing Characteristics
Product Features
  • Self-extinguishing
  • Low density core filler
Product Features
  • Self-extinguishing
  • Low density core filler

Applications & Uses

Application Area
Honeycomb Composites,
Potting Fasteners
Markets
Automotive & Transportation
Applications
Automotive & Transportation — Transportation
Aerospace & Aviation

Regulatory & Compliance

OEM Specifications
Airbus I+D‑N‑200 ‑ Z18.115‑2,
Alenia MDL8027, Type 7,
Boeing BMS 5-28, Type 32,
Boeing BMS 5-28, Type 7, Class 2,
Lockheed Martin STM M1069

Technical Details & Test Data

Processing Information

Processing

Product

Parts by Weight
EPOCAST® 89537 A Resin 100
EPOCAST® 89537 B Hardener 18.5

Stir contents of individual containers before weighing and mixing together. Material temperatures should be above 18°C (65°F) when mixing. Mix both components thoroughly for several minutes to insure complete and uniform mixing. Mix carefully to prevent air entrapment and excess voids.

Parameter

Value
Gel Time, 100 g at 25°C 70 minutes
Typical Cure Cycles Cure 1, at 25 ± 1°C
Typical Cure Cycles Cure 2: Gel at RT + 2 h at 90 min at 127 ± 6°C
Typical Cure Cycles Cure 3: Gel at RT + 2 h at 60 min at 177°C
Typical Physical Properties
Property Key Value Unit Test Method Test Condition
Compressive Strength 8.5 ksi ASTM D695 After Cure 1
Compressive Strength 8.6 ksi ASTM D695 After Cure 2
Compressive Strength 8.8 ksi ASTM D695 After Cure 3
Compressive Modulus 450 ksi ASTM D695 After Cure 1
Compressive Modulus 450 ksi ASTM D695 After Cure 2
Compressive Modulus 435 ksi ASTM D695 After Cure 3
Lap Shear Strength, Al-Al 1,200 psi ASTM D1002 After Cure 1
Lap Shear Strength, Al-Al 1,800 psi ASTM D1002 After Cure 2
Lap Shear Strength, Al-Al 1,900 psi ASTM D1002 After Cure 3
Weight Gain after 24 hours immersion 0.4 % ASTM D543

TT-S-735 test fluid
Weight Gain after 24 hours immersion 0.37 % ASTM D543

Mil-M-5606 hydraulic fluid
Weight Gain after 24 hours immersion 0.48 % ASTM D543

Monsanto low density hydraulic test fluid
Weight Gain after 24 hours immersion 0.3 % ASTM D543 Distilled water
Flammability, Burn Rate 1 in/min    

Safety & Health

Safety Precautions
  • First aid
  • Keep out of reach of children
  • For professional and industrial use only

Packaging & Availability

Packaging Type
Kit
Regional Availability
  • Americas
  • Asia Pacific
  • Australia
  • EIMEA

Storage & Handling

Storage Conditions

EPOCAST® 89537 A/B syntactic shall be stored in a dry place in the original sealed containers at temperatures between 2°C and 32°C (35.6°F and 89.6°F). After use, tightly reseal containers. Under these storage conditions, and when supplied under Huntsman standard certification, the product has a shelf life of 15 months (from date of manufacture). The product should not be exposed to direct sunlight.

Other

Physical Properties
ValueUnitsTest Method / Conditions
Density0.9 g/cm³g/cm³ASTM D1622 at 25°C