Product Description REL105 Low Styrene Emission Resin REL 105 is a thixotropic, pre-accelerated, ortophthalic based polyester resin, with different gel time version: REL 105 A:short gel time,lamination within 1-5mm REL 105 B:medium gel time ,lamination within 2-10mm REL 105 C/D:long gel time,lamination within 3-15mm 1.When applying REL 105 resin, styrene emission is reduced by up to 50% compared to other general purpose resin.Emission is only 3-5% of polyester resins used compared to 6-10% of standard polyester resin. 2.Excellent glass fiber wet out properties and easiness of application is characteristic of REL 105. REL 105 resin is recommended for spray-up,hand lay-up and filament winding methods for manufacturing numerous FRP products for the marine, building and construction and transportation markets. Detailed Photos Product Parameters Properties Liquid resin Typical value Unit Method Viscosity,Brookfield RV2#, 10 rpm 1100 mPas GB/T 7193-2008 Styrene content 42 % GB/T 7193-2008 Acid value 20 mg KOH/g GB/T 7193-2008 Gel time 25°C water bath *100g resin+ 1.2g MEKP REL 105 A Gel time 20 Min GB/T 7193-2008 Peak exotherm 120 °C REL 105 B Gel time 40 Min GB/T 7193-2008 Peak exotherm 110 °C REL 105 C Gel time 60 Min GB/T 7193-2008 Peak exotherm 90 °C GB/T 7193-2008 REL 105 D Gel time 80 Min GB/T 7193-2008 Peak exotherm 90 °C GB/T 7193-2008 Storage 25°C below 3 months Cured resin properties Typical value Unit Method Hardness 46 ASTM D-2583 Heat deflection temperature(1.81MPa) 68 ºC ISO 75 method A Flexural strength 89 MPa ISO 178 Flexural modulus 4150 MPa ISO 178 Tensile strength 56 MPa ISO 527 Tensile modulus 3600 MPa ISO 527 Elongation strength 2.1 % ISO 527 Water absorption-24 hours 18 mg/sample ISO 62 -28 days*sample 50´50´4mm 91 mg/sample ISO 62 Storage Stored at temperatures below 25ºC.Storage life decreases with increasing storage temperature. Avoid exposure to heat such as direct sunlight or steam pipes. To avoid contamination of the 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. Features & Applications Certifications Packaging & Shipping FAQ 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 refe