Silicones, silicone oils, sprays
Casting and potting resins
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Brand
- Permabond
- Container
- 50 ml
- Country of origin
- Italy
- Mixing Ratio
- 1:1
Physical Properties A
- Chemical Group (A)
- Epoxy resin
- Color (A)
- Colorless
- Viscosity 20rpm (A)
- 10000-20000
- Specific gravity (A)
- 1.1
- UFI Part A
- 0830-50Q0-D006-TXAD
Physical Properties B
- Chemical Group (B)
- Amine hardener
- Color (B)
- Colorless
- Viscosity 20rpm (B)
- 14000-24000
- Specific Gravity (B)
- 1.1
- UFI Part B
- XC30-P0DD-P00Q-F8WF
Performance at Full Cure
- Dielectric strength
- 15-25 kV/mm
- Peel resistance (aluminum) (ISO 4578)
- 70-90 N/25mm
- Elongation at break (elasticity) (ISO37)
- 20-40%
- Dielectric strength
- 15-25 kV/mm
- Thermal conductivity
- 0.3 W/(mK)
Bonding Properties
- Functional Strength
- 24 hours
Physical Properties
- Color
- colorless
- Viscosity (adhesives)
- 12000-22000
Curing values
- Maximum gap fill (mm)
- 2
- Pot Life at 23°C
- 10-20 minutes
Mechanical properties
- Hardness (Shore D)
- 30-50
Shear strength ISO 4587 in N/mm²
- Steel
- 8 - 12 N/mm²
- Glass/ Polyester
- 3-5 N/mm²
- Glass/ Epoxy
- 4-6 N/mm²
- Carbon fiber
- 4-6 N/mm²
Thermal Properties
- Operating temperature (°C)
- -55 to +100
- Storage Temperature (°C)
- 5-25
Features
- TG Value
- +50-60°C
- TG Value
- 20-40%
Product Description
Permabond ET515 is a highly flexible 2K epoxy specifically for bonding different materials (composite, metal, plastic) — with exceptional flexibility, high peel resistance and aerospace suitability for aircraft seat trays.
With an elongation at break of 20–40% and a temperature difference (Tg) of +20 °C, ET515 is significantly more flexible than standard epoxies—this flexibility buffers thermal expansion and contraction between dissimilar materials (such as carbon fiber to aluminum). Its peel strength of 100–150 N/25 mm is a top value for industrial structures.
The official Permabond recommendation for bonding aircraft seat trays underscores its suitability for aerospace applications. ET515 bonds steel (8–12 N/mm²), aluminum (9–12 N/mm²), carbon fiber (8–12 N/mm²), polyester GRP, epoxy FRP, and polycarbonate (substrate failure). The 2 mm gap filling accommodates large tolerances.
Aerospace epoxy for aircraft seat trays — Permabond ET515 is officially recommended by Permabond for bonding aircraft seat tray structures. Its combination of high flexibility (20–40% elongation at break) and peel strength (100–150 N/25 mm) makes it the premium choice for composite structural bonding with differing coefficients of thermal expansion.
What distinguishes Permabond ET515
What is Permabond ET515 used for?
Processing
Recommended accessories
Important Notes
Which Permabond 2K epoxy for which application?
Permabond ET515 in direct comparison with related products of the ET series.
Permabond ET515 Current Product | Permabond ET514 → | Permabond ET5422 → | Permabond ET5441 → | |
|---|---|---|---|---|
| Application / Property | Highly flexible 2K epoxy 1:1 — Aerospace, Composite, Multi-Ma | Higher strength, less flexible | Highest strength | UL94, thermally conductive |
| Mixing ratio | 1:1 by volume | 1:1 | 100:44 | 2:1 |
| Pot life | 10–20 minutes @ 23 °C | 30–50 min | — | — |
| Steel shear strength | 8–12 N/mm² | 20–30 N/mm² | 22–26 N/mm² | 20–25 N/mm² |
| Carbon fiber | 8–12 N/mm² | — | 20–30 N/mm² Carbon | 25–30 N/mm² |
Frequently asked questions about Permabond ET515
Practical application and design questions — answered by SILITECH.
Highly flexible aerospace epoxy 1:1 — for aircraft seat trays, composite structural bonding, and maximum peel resistance. This 2-component epoxy is mixed in a 1:1 volume ratio and offers a pot life of 10–20 minutes @ 23 °C.
Mix both components in a 1:1 ratio by volume — use the mixing nozzle for dual cartridges, weigh precisely for larger containers. Apply within the pot life (10–20 minutes @ 23 °C) and join components. Full curing typically occurs after 72 hours at room temperature.
The pot life of Permabond ET515 is typically 10–20 minutes at 23 °C. Higher temperatures shorten, lower temperatures lengthen the pot life. Mixing quantities above approximately 100 g may gel more quickly due to an exothermic reaction.
Permabond ET515 reliably bonds: Steel: 8–12 N/mm²; Aluminum: 9–12 N/mm²; Stainless steel: 6–9 N/mm²; Carbon fiber: 8–12 N/mm²; Polyester-GRP: 3–5 N/mm²; Epoxy-GRP: 4–6 N/mm²; Polycarbonate: >5 N/mm² (substrate failure). For thermoplastic substrates, test compatibility before series production.
Permabond ET515 is approved according to: Aerospace Aircraft Seat Tray Bonding (Permabond-confirmed). Compliance letters and detailed certificates are available from Permabond/SILITECH.
Permabond ET515 is a highly flexible 2-component epoxy 1:1 — for aerospace, composite, and multi-material applications (1:1 volume mix, 10–20 minutes pot life @ 23 °C). Permabond ET514 is a high-strength 1:1 epoxy (1:1, 30–50 min pot life) — higher strength, less flexible.
From the Permabond 2K epoxy range, select according to application, mixing ratio, and strength requirements: Permabond ET515 (Highly flexible 2K epoxy 1:1 — Aerospace, Composite, Multi-material); Permabond ET514 (High strength 1:1); Permabond ET5422 (Premium 100:44); Permabond ET5441 (Thermally conductive 2:1). For aerospace applications, see ET515 (Aircraft Seat Trays); for food applications, see ET5162 (EU 10/2011 + FDA); for thermal conductivity/fire protection, see ET5441 (UL94-V0).