Letter 17099

I Need a Coating in a Precision Bolted Joint 

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I have often encountered the need to protect a mild steel, precision bolted joint from corrosion at the faying interface. The trouble comes with structures too large to fit into special tanks and chambers- for instance, large ground based telescopes and tooling for measuring large mirrors and lenses. I am looking for a coating that: A; can be sprayed or brushed on. B; is thin enough to not alter surface flatness and to not cause elasticity between bolted plates. C; bonds well enough to withstand high stress from bolts. D; is dry and particle free after curing.

Noel Moyer
- Danbury, CT, USA

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