High Temperature Epoxy Resin
Description
Technical Parameters
Top High Temperature Epoxy Resin Manufacturer
Heat Resistance and Stability: The core model boasts a Tg value of 160℃, while special models can withstand long-term temperatures up to 260℃. It does not soften or deform under high temperatures. After curing at 80℃ for 12 hours, its heat resistance reaches its peak, making it suitable for demanding applications such as autoclave processes.
High-Temperature Strength: The cured material has a high cross-linking density, retaining ≥90% of tensile and flexural strength at 150℃. It exhibits excellent compressive strength, addressing the issue of rapid strength drop at high temperatures common in epoxy resins and ensuring structural stability.
Precision and Low Shrinkage: With a curing shrinkage rate of ≤0.3%, it maintains high dimensional accuracy throughout the entire process from curing to high-temperature use. Combined with excellent leveling properties, it can be used in the manufacture of high-requirement molds and precision parts, reducing deformation errors.
Multi-Scenario Adaptability: It achieves Class 0 adhesion to substrates such as metals, carbon fibers, and glass fibers using the cross-cut adhesion test. It exhibits outstanding resistance to chemical corrosion and aging, balancing convenient application at room temperature with reliable performance under high-temperature conditions, adapting to diverse needs.
Product Specifications
| Parameter Category | Parameter Name | Specification |
|---|---|---|
| Basic Information | Color | Black, white, gray, red, yellow, blue, green, etc. |
| Resin Characteristics | Resin Characteristics | Easy to mold; High hardness; Relatively brittle; General precision with an accuracy of 0.05mm |
| Liquid State Properties | Liguid Viscosity (25℃) | 300 - 500MPa·s |
| Liquid Density (25℃) | 1.05 - 1.25g/cm³ | |
| Mechanical Properties | Flexural Modulus | 1000 - 1500 MPa |
| Flexural Strength | 49 - 80MPa | |
| Tensile Strength | 42 - 62Mpa | |
| Tensile Modulus | 2000 - 2500MPa | |
| Elongation at Break | 15% - 17% | |
| Notched Impact Strength | 20 - 49j/m, etc. | |
| Shore Hardness | 90 - 95D | |
| Thermal Properties | Glass Transition Temperature | 78℃ |
| Heat Distortion Temperature | 80℃ | |
| Coefficient of Thermal Expansion | 95±5×10⁻⁶, etc. | |
| Shrinkage Properties | Volumetric Shrinkage | 3.83 - 2.95% |
| Linear Shrinkage | 0.8 - 1.5% | |
| Storage & Curing | Optimal Storage Temperature | 20℃ - 25℃ |
| Curing Wavelength | 355nm - 455nm, etc. |
What are the core heat resistance indicators of high-temperature resistant epoxy resins?
●Glass Transition Temperature (Tg):
The critical temperature at which the material transitions from rigid to flexible. For core models, this reaches 160℃, and it is a fundamental indicator of heat resistance.
●Long-Term Operating Temperature:
The temperature range within which the material can operate stably. For standard models, this is 120-150℃; for special models, it reaches 200-260℃. It must be used 20-30℃ below the Tg value to ensure performance stability.
●Post-Cure Activation Requirements:
The core heat resistance properties require activation through curing at 80℃ for 12 hours. Room temperature curing only meets the basic operating requirements of ≤50℃.
Choose high-temperature resistant epoxy resin, and we'll solve these core procurement challenges for you.
Worried about insufficient temperature resistance? Our high-temperature resistant epoxy resin can stably withstand temperatures from 150℃ to 300℃, without softening or cracking over long-term use, easily solving the pain point of material failure under high-temperature conditions.
●Afraid of poor adhesion/curing?
Our product has high bonding strength and low shrinkage after curing, and is resistant to thermal shock, solving the problems of adhesion detachment and structural deformation in high-temperature environments.
●Concerned about media resistance?
It can withstand the erosion of complex media such as acids, alkalis, and oils, solving the problem of material damage caused by chemical corrosion in high-temperature conditions.
●Worried about inconvenient construction?
It supports multiple construction methods such as brushing, pouring, and wrapping, and the viscosity can be adjusted as needed, solving the problems of difficult and inefficient construction of high-temperature materials.
●Concerned about environmental protection and safety?
Our product meets environmental standards and has no harmful volatile substances, solving the problems of environmental non-compliance and personnel health risks in high-temperature operations.
FAQ
1. Is post-curing necessary to achieve the stated heat resistance?
Curing at room temperature for 24 hours is sufficient for applications ≤50℃. To achieve 160℃ heat resistance, curing at 80℃ for 12 hours is required for activation. Alternatively, natural post-curing can be performed below the maximum operating temperature, with performance gradually improving.
2. Are there differences in application and mixing ratios for high-temperature epoxy resins compared to regular epoxy resins?
The mixing ratio is typically 100:50 (weight/volume), consistent with conventional epoxy. During application, the pot life at 25℃ is 40-60 minutes, with good leveling properties. Only post-curing is required before high-temperature applications; other operations have no special requirements.
3. Are there specific requirements for the epoxy value of the resin when used in carbon fiber composites?
We recommend resins with an epoxy value of 0.77-0.91 eq/100g. Within this range, it exhibits excellent wettability with carbon fiber, ensuring sufficient cross-linking and maximizing the high-temperature strength and interfacial bonding of the composite material.
4. How resistant is the product to chemical corrosion at high temperatures? Can it withstand oil and solvents?
It can withstand common industrial oils such as engine oil and hydraulic oil, as well as weak acid and alkali solutions, under high-temperature conditions; however, prolonged contact with strong solvents (such as acetone) should be avoided. Specific operating conditions can be provided for a suitable solution.
5. After bulk purchase, will storage conditions affect the heat resistance? What is the shelf life?
Components A and B should be sealed separately and stored in a dry, cool place at 5-30℃, avoiding direct sunlight. Storage conditions do not affect the final heat resistance. Unopened, the shelf life is 12 months. Once opened, it is recommended to use within 3 months and seal the bottle.
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