H.B. Fuller EY3804A (1-USQT-CAN)

Additional Product Information

Overview

H.B. Fuller's EY3804 Part A epoxy system stands out for its remarkable combination of qualities. This two-component epoxy offers a low viscosity for easy application, cures at low temperatures while delivering high-temperature strength, and maintains excellent resistance to hot water immersion. It is widely relied upon for field repairs in aerospace MRO operations where durability and reliable performance are critical.

Key Technical Specs for EY3804 A

• Type: Two-component epoxy
• Viscosity: Low, easy flow
• Cure/Working Time: Low temperature cure
• High Temperature Strength: Yes
• Water Resistance: Excellent, hot water immersion
• Typical Uses: Field repairs of composite components

Approvals & Specifications

• BMS8-301 CLASS 2

Typical Aircraft MRO / AOG Applications

• Composite component repairs
• Field-level emergency repairs

Compatibility & Safety Notes

• Substrates: Composites
• PPE: Standard epoxy handling
• Handling Notes: Follow low-temperature cure procedures

Packaging & Procurement

• Supplied as Part kit (Part A component)
• Storage: Follow epoxy storage guidelines
• Ease of Use: Ready-to-mix for field application

Why EY3804 A is Chosen for AOG / MRO

• Low viscosity enables quick, precise application in tight spaces
• Reliable performance under low and high temperatures
• Excellent resistance to hot water immersion ensures repair longevity

Practical Suggestions for Your Team (AOG Mindset)

• Keep kits stocked for emergency composite repairs
• Train maintenance personnel on low-temperature curing techniques
• Use in combination with standard composite repair tools

Manufacture / Aviation Spec Codes

• Manufacturer: H.B. Fuller
• Product ID: EY3804 A
• MIL/OEM Codes: BMS8-301 CLASS 2

Alternative Names & Descriptions

• H.B. Fuller EY3804-A/B (1-Usqt-Kit)
• EY3804A-B
• EY3804A/B
• EY3804 A/B
• EY3804
• EY 3804A/B:26348
• BMS8-301 CLASS 2
• EY3804AB