摘要 |
A hardener composition useful in a two part resin system. The hardener composition includes a reactive carrier, a peroxide catalyst, a thickener and thixotropic agent selected from fumed silica and precipitated silica, and optionally a filler. The hardener composition can have a shelf life of over six months. A two-part polyester resin system and a method of making a polyester resin composition are also disclosed. |