

REL 470 resin is a novolac-based vinyl ester designed to provide exceptional
mechanical properties at higher temperatures. This resin offers a high resistance to solvents and
chemicals, good retention of strength and toughness at elevated temperatures, and excellent resistance
to acidic oxidizing environments.
REL 470 resin is suitable for applications involving high temperature chlorination or caustic scrubbing and storage,industrial waste treatment facilities and solvent extraction processes used in mining.
It is also used for hydrochloric acid transport, tank, truck and railcar linings, and gasohol storage.
REL 470 resin is recommended for most commercial FRP fabrication processes including hand lay-up, spray-up, pultrusion and resin transfer molding. The higher viscosity of REL 470 resin facilitates filament winding and contact molding applications.

storage
It 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.






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)
TYPICAL LIQUID RESIN PROPERTIE
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 |
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 |
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 |





Q: Can I Request a Sample of Unsaturated Polyester Resin?
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 Unsaturated Polyester Resin 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 Unsaturated Polyester Resin 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 Unsaturated Polyester Resin 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.
