epoxy
polymerEpoxy is a thermosetting polymer formed by cross-linking epoxide resin with hardeners, creating a rigid, highly networked structure that does not soften upon heating. It is widely used in structural adhesives, composite matrices (fiber-reinforced polymers), protective coatings, and electrical encapsulation due to its excellent adhesion, chemical resistance, and dimensional stability. Engineers select epoxy over other polymers when high stiffness, low creep, superior bond strength, and reliable performance in harsh chemical or thermal environments are required, though its brittle nature and moisture sensitivity require careful design consideration.
structural adhesives and bondingfiber-reinforced composite matriceselectrical encapsulation and pottingprotective coatings and liningsaerospace and automotive componentswind turbine blades
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | — | Pa | — | — | |
Elongation at Break(εf) | — | - | — | — | |
Flexural Strength (MOR)(σf) | — | Pa | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Young's Modulus(E) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — | |
Melting Point / Solidus(Tm) | — | K | — | — | |
Maximum Service Temperature(Tmax) | — | K | — | — | |
Thermal Conductivity(k) | — | W/(m·K) | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | — | - | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.