Unsaturated Polyester Resin
DS-663
DS-Tianhe Resin Series
Tianhe Dianshi brand DS-663 is a dicyclopentadiene-modified unsaturated polyester resin with medium viscosity and medium reactivity, free of wax, and good air-drying properties. It has high mechanical strength and good wetting properties with fillers and glass fibers. It is particularly suitable for manufacturing winding glass fiber reinforced sand pipes, storage tanks, and general hand-layup fiberglass products.
| Liquid Resin Technical Specifications | |||
| Item | Unit | Specification | Testing Standard |
| Appearance | Light yellow transparent liquid | Visual | |
| Color (Pt-Co) | 40-60 | GB7193 | |
| Acid Value | mgKOH/g | 17-21 | GB2895 |
| Viscosity at 25℃ | mPa.S | 300-700 | GB7193 |
| Gel Time | min | 5-9 | GB7193 |
| Solid Content | % | 65-68 | GB7193 |
| 80℃ Stability | h | ≥24 | GB7193 |
| Note: Gel time is measured at a temperature of 25℃ in an air bath with 50g of resin mixed with 0.5ml of cobalt octoate solution and 0.5ml of MEKP solution. | |||
| Resin Casting Body Performance Indicators (for reference only) | |||
| Item | Unit | Specification | Testing Standard |
| Barcol Hardness | Barcol | 40 | GB3854 |
| Tensile Strength | MPa | 50 | GB2567 |
| Tensile Modulus | MPa | 2000 | GB2567 |
| Break Elongation Rate | % | 2.0 | GB2567 |
| Bending Strength | MPa | 80 | GB2567 |
| Bending Modulus | MPa | 3000 | GB2567 |
| Impact Toughness | KJ/m² | 4 | GB2567 |
| Heat Distortion Temperature | (℃) | 80 | GB1634.2 |
| *Note: (1) Casting body sample preparation method: follow GB/T8237-2005; (2) Post-treatment method for casting body: Room temperature/24 hours +40℃/1 hour +60℃/3 hours; (3) Experimental environment temperature: 23±2℃, relative humidity: 50±5%. | |||
*Packaging and Storage*
*The packaging of Tianhe Dianshi brand DS-663 is a net weight of 220KG metal drum, with a storage period of six months at a temperature of 20℃. Higher temperatures will shorten the storage period accordingly. It should be stored in a cool, ventilated place, avoiding direct sunlight and heat sources. This product is flammable and should be kept away from open flames.*
*Note: This data is determined according to national standards (GB). Due to various factors affecting the processing process, the necessity for users to conduct their own experimental research cannot be excluded. Legally, it does not guarantee that certain product performances are fully applicable to any specific use, and reserves the right to modify the information.*
Key words: