Description:
Novolac Epoxy Vinyl Ester Resin
Performance Attributes:
Exceptional high temperature performance Superior solvent resistance
Lower styrene content
Epoxy Novolac Vinyl Ester Resin Application:
Corrosion-resistant equipment
REL 470 is an epoxy novolac vinyl ester resin specifically designed for extreme industrial environments, particularly chimney liners and pipe linings. Its core properties stem from the incorporation of a novolac backbone, enabling exceptional performance under the combined effects of sustained high temperatures and chemical corrosion. This Epoxy Vinyl Ester Resin not only delivers outstanding long-term high-temperature resistance, capable of withstanding thermal cycling from flue gases, but also provides superior solvent and chemical corrosion resistance, effectively resisting attack from acidic condensates and complex chemical media. Additionally, its lower styrene content helps reduce volatilization and shrinkage during the curing process, enhancing the friendliness of the working environment. It is an ideal matrix material for manufacturing high-temperature resistant, corrosion-resistant fiberglass-reinforced plastic (FRP) chimney liners, scrubbers, and high-temperature piping.
Typical geltimes(2) using NOROX(3) MEKP-925H(4) catalyst (MEKP) and Cobalt Naphthenate or Octoate-6%(5)(Cobalt6%), Diethylaniline(7)(DEA) and 2,4-Pentanedione (2,4-P)
| Product Name | Description | Performance Attributes | Application |
| REL 470 Epoxy Novolac Vinyl Ester Resin | Novolac Epoxy Vinyl Ester Resin | Exceptional high temperature performance Superior solvent resistanc Lower styrene content | Corrosion-resistant equipment |
| Geltime at 15°C (59°F) | Trigonox 239A (phr) | Cobalt6% (phr) |
| 15 +/- 5 minutes | 1.50 | 0.25 |
| 30 +/- 10 minutes | 1.50 | 0.12 |
| 60 +/- 15 minutes | 1.50 | 0.07 |
| Geltime at 20°C (68°F) | Trigonox 239A (phr) | Cobalt6% (phr) |
| 15 +/- 5 minutes | 1.25 | 0.20 |
| 30 +/- 10 minutes | 1.00 | 0.10 |
| 60 +/- 15 minutes | 1.00 | 0.06 |
| Geltime at 25°C (77°F) | Trigonox 239A (phr) | Cobalt6% (phr) | 2,4-P (phr) |
| 15 +/- 5 minutes | 1.00 | 0.15 | --- |
| 30 +/- 10 minutes | 1.00 | 0.07 | --- |
| 60 +/- 15 minutes | 1.00 | 0.05 | 0.01 |
Typical properties(1) of a postcured 6 mm (1/4") laminate(10) at 25°C (77°F).
| Tensile Strength | 130 MPa | ISO 527 | 19,000 psi | ASTM D3039 |
| Tensile Modulus | 12,000 MPa | ISO 527 | 1700 kpsi | ASTM D3039 |
| Flexural Strength | 210 MPa | ISO 178 | 30,000 psi | ASTM D790 |
| Flexural Modulus | 8500 MPa | ISO 178 | 1200 kpsi | ASTM D790 |
| Glass Content | 40% | ISO 1172 | 40% | ASTM D2584 |
Typical properties(1) of a cured casting(8) at 25°C (77°F)
| Tensile Strength | 85 MPa | ISO 527 | 12,500 psi | ASTM D638 |
| Tensile Modulus | 3600 MPa | ISO 527 | 5.2 x 105 psi | ASTM D638 |
| Tensile Elongation at Yield | 3-4% | ISO 527 | 3-4% | ASTM D638 |
| Flexural Strength | 130 MPa | ISO 178 | 19,000 psi | ASTM D790 |
| Flexural Modulus | 3800 MPa | ISO 178 | 5.5 x 105 psi | ASTM D790 |
| Density | 1.17 g/cm³ | ISO 1183 | ASTM D792 | |
| Volume Shrinkage | 8.3% | 8.3% | ||
| Heat Distortion Temperature(9) | 150°C | ISO 75 | 300°F | ASTM D648 |
| Glass Transition Temperature, Tg2 | 165°C | ISO 11357 | 330°F | ASTM D3418 |
| Barcol Hardness | 40 | EN 59 | 40 | ASTM D2583 |


epoxy novolac vinyl ester is highly recommended that all material is stored at stable temperatures below 25°C (77°F).
Avoid exposure to heat sources such as direct sunlight or steam pipes. To avoid contamination of product with water, do not store outdoors. Keep sealed to prevent moisture pick-up and monomer loss. Mild mixing is recommended after prolonged storage. Rotate stock.

Changzhou RealLand Composite Material Technology Co., Ltd.
Choosing REL 470 Epoxy Novolac Vinyl Ester Resin means you acquire not just a material, but an engineered solution tailored for high-temperature corrosive environments. Its exceptional temperature and chemical resistance directly translate into longer equipment maintenance intervals and a lower risk of unexpected downtime, significantly enhancing operational economy and safety in the long term.
We provide not only the resin but also specialized expertise in the manufacturing processes for chimney liners. From lamination process guidance to curing system recommendations, our technical support is designed to help you optimize your production workflow, ensuring the resin's performance is fully realized in the final product and achieving the optimal balance between quality and efficiency.
We specialize in the R&D and production of high-performance corrosion-resistant resins and possess a deep understanding of advanced applications like REL 470 Epoxy Novolac Vinyl Ester Resin. Choosing us means partnering with an organization rich in knowledge and successful case studies in this field. You will benefit from more reliable product supply, more practical technical exchanges, and a collaborative ability to tackle complex challenges together.





Q: Can I Request a Sample of epoxy novolac vinyl ester?
A: Yes, we can provide 10kg of resin as a free sample, but freight are typically the responsibility of the buyer.
Q: Can I Customize the Formulation of epoxy novolac vinyl ester for My Project?
A: Yes, absolutely. We understand that different projects may have unique requirements. Our R & D department is well-equipped to handle custom formulations based on your specific needs. You can provide us with the details of your project, including any specific characteristics or performance criteria you are looking for, and our experts will work on tailoring a formulation that meets your requirements.
Q: How Do I Choose the Right epoxy novolac vinyl ester for My Application?
A: We would provide guidance on selecting the appropriate UPR based on different project requirements.
Q: What Certifications and Quality Standards Does Your epoxy novolac vinyl ester Meet?
A: Our Unsaturated Polyester Resin meets CCS, RoHS, REACH, EMS, and QMS certifications and quality standards.
Q: What is The Product Lead Time?
A: 10 days.
Q: What's Shelf Life of Unsaturated Polyester Resin?
A: Normally 8 months.
Q: Can I Get a Lower Price for a Large Quantity Order?
A: Absolutely. The online price serves as a reference, but due to fluctuations in raw material costs, our sales team can provide you with the most accurate and competitive pricing. Before making a purchase, kindly engage with our sales representatives. They will work closely with you, taking into account your order quantity and specific requirements, to ensure you receive the best and most cost-effective pricing tailored to your needs.

RealLand is a integrated enterprise, provides specialty chemical products, services and solutions for many of world’s most essential industries.
E-mail: castle@reallandcomposite.com
Mobile: 0086-13775214842
WhatsApp: +86-13775214842
Add: 2305-2306, Changfa Plaza Office Building, No. 101-1, The Taihu Lake East Road, Xinbei, Changzhou, Jiangsu, China