MCU on Masts
 

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

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

MCU on Masts
 

Joe Bleau inscribed in red ink for all to know:
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 repainted all our spars (Eolian is a ketch) with Interthane Plus
(now called 'Perfection) 2-part urethane. We are very pleased with the
results. The paint went on beautifully, and is extremely hard. After
several years, I can also report that it weathers very well.

As a side note, I paint cars as well, and this paint system very much
resembles the urethane-hardened PPG Delthane that I use.


bob
s/v Eolian
Seattle