Thread: MCU on Masts
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Brian Cleverly Brian Cleverly is offline
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First recorded activity by BoatBanter: Sep 2006
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Default MCU on Masts

Joe Bleau wrote:

Has anyone in the group used moisture cured urethane to repaint spars?
Please tell us about it. Were you pleased? How much prep is
required? Is it a final coat or a primer? Sprayed or brushed?
Thanks.

Joe


We've used System Three's Water Based Epoxy paint for spars, both rolled and
sprayed.

Results were excellent provided the relative humidity was above 40%, anything
lower than that it dries far too quickly. As the RH is rarely that high in our
area during paint season we don't normally use anything other than 2 part LPU.

Standard prep... Sand to clean metal; acid etch; alodine; anti-corrosion
primer; top coat.

Brian C