This type of unsaturated polyester resin is used for the production of grinding and sanding wheels based on orthophthalic and isophthalic systems. This resin has bright color, good strength, and is resistant to high hardness, and possesses suitable mechanical properties for polishing stones and making sandpaper and cutting stones.
Type | Product | Solid Contet (%) | Viscosity@25 c (MPa.S) | Color (Gardner) | Acid Value | Gel time (Min) | Hardness (Barcol) | Tensile Strength (MPa) | Flexural strength (MPa) | HDT(°C) |
Ortho | 0-774 | 65 ±3 | 450-550 | <1 | <20 | 8-25 | 45min | 55min | 100 | 70 |
Iso | I-765 | 66 | 800-1200 | <1 | <20 | 7-12 | 45min | 75min | 140 | 90 |