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REL 510 is a brominated epoxy vinyl ester resin that offers a high degree of fire retardance while providing excellent chemical resistance and toughness. Optimum fire retardance is achieved when antimony compounds are added to the resin. Laminates made with REL 510 resin have met ASTM E-84 Flame Spread "Class 2" rating (less than 75). With the use of antimony synergists,"Class 1" ratings can be achieved.
Recommendations for specific services and environments can be provided by contacting us.
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)
| Geltime at 15'C(59°F) | MEKP(phr) | Cobalt6%(phr) | DEA(phr) |
| 15 +/-5 minutes | 1.50 | 0.30 | 1.25 |
| 30 +/-5 minutes | 1.50 | 0.12 | - |
| 60 +/- 5 minutes | 1.25 | 0.05 | - |
| Geltime at 20'C(68°F) | MEKP(phr) | Cobalt6%(phr) | 2,4-P(phr) |
| 15 +/- 5 minutes | 1.25 | 0.20 | - |
| 30 +/- 5 minutes | 1.25 | 0.05 | - |
| 60 +/-5 minutes | 1.25 | 0.10 | 0.03 |
| Geltime at 25°C(77°F) | MEKP(phr) | Cobalt6%(phr) | 2,4-P(phr) |
| 15 +/- 5 minutes | 1.00 | 0.10 | - |
| 30 +/- 5minutes | 1.00 | 0.05 | 0.01 |
| 60 +/-5minutes | 1.00 | 0.05 | 0.025 |
| Geltime at 30°C (86°F) | MEKP(phr) | Cobalt6%(phr) | 2,4-P(phr) |
| 15 +/- 5 minutes | 1.00 | 0.05 | - |
| 30 +/- 5minutes | 1.00 | 0.05 | 0.02 |
| 60 +/-5 minutes | 1.00 | 0.05 | 0.04 |
| Geltime at 35°C (95°F) | MEKP(phr) | Cobalt6%(phr) | 2,4-P(phr) |
| 15 +/- 5 minutes | 1.00 | 0.05 | 0.02 |
| 30 +/- 5minutes | 1.00 | 0.05 | 0.04 |
| 60 +/-5 minutes | 1.00 | 0.05 | 0.07 |
(2) Thoroughly test any other materials in your applications before full-scale use. Geltimes may vary dueto the reactive nature of these materials. Always test a small quantity before formulating large quantities
(3)Registered trademark of Norac Inc.
(4) NOrOx MEKP-925H content MEKP. Use of other MEKP catalystsor additives may result in different gel times.
(5) Use of cobalt octoate, especially in combination with 2.4-P can result in 20-30% slower gel times
(6)phr= parts per hundred resin molding compound
Casting Properties
| Property(2) or clear casting(7) at 25°C(77°F) | Value (sl) | Method | Value (US) | Method |
| Tensile strength | 86 MPa | ISO 527 | 12000 psi | ASTM D638 |
| Tensile modulus | 3200 MPa | ISO 527 | 460 kpsi | ASTM D638 |
| Elongation, Yield | 5-6% | ISO 527 | 5-6% | ASTM D638 |
| Flexural strength | 150 MPa | ISO 178 | 22000 psi | ASTM D790 |
| Flexural modulus | 3400 MPa | ISO 178 | 490 kpsi | ASTM D790 |
| Heat distortion temperature | 105ºC | ISO 75 | 220°F | ASTM D648 |
| Glass transition temperature,Tg2 | 120°C | ISO 11359 | 250°F | ASTMD3419 |
| Volume shrinkage | 7.8 % | - | 7.8 % | - |
| Barcol Hardness | 35 | EN 59 | 35 | ASTMD2583 |
(7)The properties in the table are measured from a clear resin casting which is postcured for 24h at room temperature and 2 hours at 120ºC/ 250°F. (The Sl values are reported to two significant figures and US standard values based on conversion.)
Laminate Properties
| Property(2)of6mm(¼ in.) laminate(8) at 25°C(77°F) | Value (sl) | Method | Value (US) | Method |
| Tensile strength | 150 MPa | ISO 527 | 22000 psi | ASTM D3039 |
| Tensile modulus | 12000 MPa | ISO 527 | 1700 kpsi | ASTM D3039 |
| Flexural strength | 210 MPa | ISO 178 | 30000 psi | ASTM D790 |
| Flexural modulus | 8100 MPa | ISO 178 | 1200 kpsi | ASTM D790 |
| Glass content | 40% | ISO 1172 | 40% | ASTM D2584 |
(8)Laminate postcured 24 hours at room temperature and 6 hours at 80 ºC (175 F). Laminate construction isV/W/M/Wr/M/Wr/M where V=Continuous veil glass, M=Chopped strand mat 450 g/m2 (1.5 oz/ft2) and Wr=Wowen roving 800 g/m2 (24 oz/vd2).(The Sl values are reported to two significant figures and US standard values are based on conversion).
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.
