FR402 Tetrafunctional Epoxy Laminate and Prepreg FR402 consists of a modified tetrafunctional epoxy resin system engineered for multilayer applications that require performance characteristics exceeding those of difunctional epoxies. The formulation of FR402 is designed to enhance throughput and accuracy of laser based Automated Optical Inspection (AOI) equipment. FR402 offers superior resistance to chemical and thermal degradation. Product Features · Industry Recognition - UL File Number: E41625 - RoHS Compliant · Processing Advantages - FR-4 process compatible - UV blocking and AOI fluorescence Product Availability · Standard Material Offering: Laminate - 2 to 125 mil (0.05 to 3.2 mm) - Available in full size sheet or panel form · Copper Foil Type - HTE Grade 3 - RTF (Reverse Treat Foil) · Copper Weight - ½ to 2 oz (18 to 70 μm) available - Heavier copper available - Thinner copper foil available · Standard Material Offering: Prepreg - Roll or panel form - Tooling of prepreg panels · Glass Fabric Availability - E-glass - Square weave glass
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