HE PROCESS FOR REPAIRING EPOXY PAINTING
Raw material |
Dosage (%) |
Epoxy resin |
30-40 |
Polyester resin |
30-35 |
Solidified agent |
10 |
colorant |
10-15g/kg |
The main composition of the thermoset power coating is epoxy resin (30-40%)and polyester resin (30-35%).
The following are the information connect with the epoxy resin
The most common epoxy resins are glycidyl ethers of alcohols or phenolics. Liquid epoxy resin is the diglycidyl ether of bisphenol A (DGEBA) and represents greater than 75% of the resin used in industrial applications.

Figure 1: Structure of DGEBA resin

Figure 2: Curing mechanism of Epoxy resins
Formulating tips for curing of epoxy resins
composite is a material reinforced by fibers or other materials with a discern-able aspect ratio of length to thickness. The fibers are primarily glass or carbon but aramid, boron and other organic and natural fibers are also used. Polymers used in composites are typically thermosets, and their purpose is to transfer the load or stresses to the fiber reinforcement in order to take advantage of the strength and stiffness (modulus) of the fibers. Typical fiber volume in this application is approximately 70%.
Applications for composites cover a broad spectrum from do-it-yourself patching and hobby kits cured at room temperature to advanced military and aerospace components cured at high temperatures. Performance and processing requirements are as diverse as the applications, so a "systems" approach must be taken when selecting the resin and curing agent for the specific application. The final physical, thermal, electrical and chemical resistance properties of the composite are determined by the choice of resin and curing agent, and the cure conditions.