E. Andrew
Materials Sciences, Alabama, United States
Keywords: Honeycomb Repair, Composite Repair
This low-density honeycomb filler is curable in a wide range of ambient temperatures as low as 32F (0C). Part of this motivation for adoption of the material will be the material cost savings of 30% and increased shelf life at RT (~77F) over the 3 months for EA 9321. Additionally, it does not require any curing equipment which means unlike legacy material it can be used for organizational and intermediate level repairs in addition to depot level repairs. The repair is rapidly ready for sanding enabling a 70% reduction in repair time and 50% increase in the diameter of repairs. Overall, this will provide the Navy with a durable, temperature resistant drop-in replacement for current repairs of sandwich composites. On a broader scale, the product will be an improvement on commercial repair fillers that are used in a number of industries including defense and aerospace, transportation, building and construction, and maritime.