Henkel Loctite® Hysol® EA 9309.3NA (Cross-referenced under Kit Part Numbers A-6741-20 and DHS171-200.40) is a premium, toughened, two-part structural epoxy paste adhesive engineered by Henkel for demanding aerospace, defense, and high-performance composite bonding applications. Formulated with glass micro-beads for precise bond line thickness control, EA 9309.3NA delivers exceptional peel strength and high lap shear performance across metal and composite substrates. Curing at room temperature (or under accelerated mild heat), this non-sag structural paste exhibits high resistance to thermal shock, high-vibration exposure, aerospace fuels, and hydraulic fluids, making it an industry standard for structural airframe bonding, patch repairs, and core stabilization.

Technical Specifications & Cross-References

• Manufacturer: Henkel Corporation / Loctite® Hysol®
• Product Name: Loctite® Hysol® EA 9309.3NA (Aero)
• Cross-Reference / SKU IDs: A-6741-20 / DHS171-200.40
• Chemical Base: Two-Part Toughened Epoxy Paste
• Physical State: Thixotropic Paste with Integrated Glass Spacer Beads
• Color (Mixed): Pink / Off-White (Substrate and batch dependent)
• Mix Ratio by Weight: 100 : 22 (Part A : Part B)
• Pot Life / Work Life: ~35 to 40 minutes (100g mass at 77°F / 25°C)
• Cure Profile: Ambient room-temperature cure (Full physical development in 3 to 7 days at 77°F / 25°C; heat-acceleratable at 180°F / 82°C for 1 hour)
• Operating Temperature Range: Continuous load-bearing performance from -65°F to 180°F (-54°C to 82°C)

Approved Specifications & Aviation Conformance:

Loctite Hysol EA 9309.3NA meets stringent commercial, defense, and aerospace OEM specification baselines:

• Aerospace Structural Qualification: Approved across Boeing (BMS 5-110), Lockheed Martin, and major defense contractor baselines for structural bonding and skin repair.
• High Peel & Impact Resistance: Toughened formulation resists cleavage, peel forces, and severe structural vibration under dynamic flight loads.
• Aviation Fluid Immunity: Highly resistant to degradation from exposure to jet fuels (Jet-A/JP-8), Skydrol hydraulic fluids, engine oils, and deicing solvents post-cure.

Key Features & Performance Benefits

• Superior Peel & Shear Strength: Delivers high-strength elastomeric toughness designed to prevent joint cleavage on flexible or dissimilar substrates.
• Integrated Glass Spacer Beads: Formulated with micro-beads to ensure uniform bond line thickness and prevent over-clamping squeeze-out during assembly.
• Thixotropic Non-Sag Consistency: Maintains bead stability on vertical and overhead surfaces, filling large voids and uneven gaps without slumping.
• Room Temperature Ambient Cure: Achieves structural bonds without requiring high-temperature autoclave processing, simplifying field MRO repairs.
• Exceptional Substrate Adhesion: Bonds tenaciously to alodined aluminum, titanium, composite laminates (CFRP/GRP), and honeycomb sandwich panels.

Typical Applications

• Aerospace Metal & Composite Bonding: Used for primary and secondary structural bonding of aluminum, titanium, and composite structures.
• Airframe Patch Repair & Reinforcement: Ideal for MRO structural doubler bonding, skin repairs, and fairing attachment.
• Honeycomb Panel Repair & Potting: Applied for insert potting, edge sealing, and core splicing in aircraft interior and flight deck panels.

• All in-stock orders are processed within 1–2 business days (excluding weekends and holidays) after receiving your order confirmation email.
• Orders with a lead time will ship according to the estimated shipping time shown on the product page.
• If we experience a high volume of orders or if an item is backordered, processing times may be slightly delayed. We will notify you promptly via email.

• Returns and damage claims must be made within a maximum of 3 business days after receiving the product, with prior authorization from Aircraft Shop Supply (Return Material Authorization - RMA). Returns without prior notice or written authorization will not be accepted. We strongly recommend inspecting the product upon delivery; many products require special storage conditions for which we are not responsible once they arrive to the client's facility. Please review the product's SDS for proper storage and handling.
• For products with 3 to 6 months of remaining shelf life, claims must be made within the next 2 business days after receipt.
• Returns are not accepted for products with less than 3 months of remaining shelf life.
• Returns are not accepted for products purchased during a low Shelf Life promotion, items sold with discounts, or special orders that must be placed directly with the factory.
• The customer is responsible for the return shipping cost, except in cases where the return is due to an error on the part of Aircraft Shop Supply.
• Refunds will only be issued after the product has been inspected and no damage is found.
• A 25% Restocking Fee will be charged for returns of products in good condition that are either no longer needed or were ordered incorrectly.
• A 35% Restocking Fee will be charged for returns of products with one year or less of remaining shelf life.
• No Restocking Fee will be charged if Aircraft Shop Supply is responsible for incorrectly shipping a product, or if the order is damaged upon leaving the warehouse.
• Hazardous Materials & Dangerous Goods: These items are sold as final and are not eligible for return approval.

At Aircraft Shop Supply, we are committed to shipping the highest quality and freshest product possible. To ensure efficient stock rotation and meet aviation industry standards, our inventory management is governed by the following policy:

1. Scope of Application
All Sales Channels: This policy applies to all orders processed by Aircraft Shop Supply, including but not limited to: website purchases, direct email orders, formal Purchase Orders (POs), phone orders, and contract agreements.

2. Inventory Management (FIFO)
All products with an expiration date are managed and shipped on a strict "First In – First Out" (FIFO) basis.

3. Minimum Shipping Margin
Standard Guarantee: We will not ship any products with fewer than 30 days of use remaining (days before expiration), unless previously coordinated and agreed upon with the customer.

No Automatic Guarantees: Outside of this 30-day minimum margin, Aircraft Shop Supply does not make any automatic guarantee as to the specific length of time remaining on any shelf-life item for standard orders.

4. Special Customer Requirements
We understand that certain projects, maintenance schedules, or regulatory standards require strict specifications. If your order has specific shelf-life requirements, please proceed as follows:

How to Request: If you require a specific Date of Manufacture (DOM), Date of Expiration (DOE), or a specific minimum shelf-life percentage (%), you must clearly state this requirement:

In the Comments/Notes section when placing an online order.

Explicitly written on your Purchase Order (PO) or quote request email for offline orders.

Validation Process: Once your requirement is received:

We will ship your order if the available stock matches your specifications.

If we do not have the exact batch, we will contact you prior to shipping with the shelf-life percentage (%) or dates we have available for your acceptance.

5. Limitation of Liability and Validity of Information
To ensure transparency and manage expectations, the following terms and conditions apply:

Time-Limited Validity: Any information provided by our team regarding the remaining shelf-life percentage (%) is valid only at the exact time the inquiry is made. Due to high inventory turnover, availability is subject to change without prior notice.

Informational Purposes Only: Shelf-life data provided by Aircraft Shop Supply is strictly for informational purposes and reflects the availability at the moment of inquiry. It does not constitute a batch reservation or a product warranty.

Supply Chain Liability Exclusion: Aircraft Shop Supply is not responsible for the time elapsed or any product expiration that occurs after the order has been prepared and packed. This includes, but is not limited to: the time between order placement, carrier transit times, intermediary storage, customs delays, and final delivery to the end user. It is the customer's responsibility to account for these logistical lead times within their planning.