paddle wheel painting

[KREW2]

It is recommended that the paddle wheel on the speed sensor is antifouled, but the paint must not contain ketones. I was thinking of applying some Hempel eco prop primer, and ecopower prop. Much googling has not given me any answers. What, if anything do members on here use.

 

[Sandy]

Why do you need to antifoul a speed paddle wheel when the blanking bung is in situ most of the time? I don't even antifoul the blanking bung as it is cleaned every time I remove it use the speed sensor.

 

[Martin_J]

Most chandleries sell this water based antifouling in small pots (70ml) for transducers..

 

[tillergirl]

Most chandleries sell this water based antifouling in small pots (70ml) for transducers..

View attachment 157974

As effective as a chocolate teapot!!!

P1080841 by Roger Gaspar, on Flickr

 

[Scubadoo]

I paint mine just carefully on the "fins" with a painters brush and spray silicon into the spindle, been doing that for what must be over 15 years and not seen any degradation to the unit. Most of the time it works throughout the season. I use eroding antifouling and no primer.

 

[vyv_cox]

I use Velox very successfully. Expensive but I am on the original tin, painting prop, P-bracket and impeller for the past 10 years.

 

[KREW2]

Why do you need to antifoul a speed paddle wheel when the blanking bung is in situ most of the time? I don't even antifoul the blanking bung as it is cleaned every time I remove it use the speed sensor.

I don't seem to have a blanking plug.

 

[Refueler]

Never used anything on mine .... if it stops working ... usually a twist in the mount and back again gets it working again.

When I lift out ... sometimes many years staying in ... unit is still relatively clear ..

 

[Dellquay13]

Most chandleries sell this water based antifouling in small pots (70ml) for transducers..

View attachment 157974

Chocolate teapot

Edit; beaten to it.

Hempel tiger extra hasn’t hurt any of the transducers I’ve painted over the last 20 years

 

[johnalison]

I usually put some silicon grease on. When we kept on the move it was effective enough and I could do a 3-months cruise without cleaning it, Now I settle for regular cleaning, which is easy enough and the grease delays fouling for a week or two perhaps. If antifouling, one would need to cover the impeller and all its surrounds to have much effect, so I've never bothered.

 

[Refueler]

IMHO - painting could actually cause a problem ... as the wheel has a tiny spindle axle to rotate on ... it does not take much crud to stop that from turning ... bit hamfisted with the brush and voila - spindle is stuck.

 

[vyv_cox]

Never used anything on mine .... if it stops working ... usually a twist in the mount and back again gets it working again.

When I lift out ... sometimes many years staying in ... unit is still relatively clear ..

I don't think you could say the same in the Mediterranean. Even with Velox the tube worm needs to be scraped off monthly. Without it my log impeller will stop rotating in around a week if at anchor throughout.

 

[Koeketiene]

As effective as a chocolate teapot!!!

P1080841 by Roger Gaspar, on Flickr

That's been my experience with this product too.
You'll be lucky if you can keep your log free of weed for over 6 weeks.

 

[Refueler]

Just asking ...

I have Nasa Clipper Dual Speed / Depth ....

also

Echopilot Duo Speed / Depth ....

None say anything about antifouling the speed paddle wheel ...

OP says antifouling is recc'd .... just asking out of interest - which manufacturer / brand does recc'd this ??

 

[Tranona]

Just asking ...

I have Nasa Clipper Dual Speed / Depth ....

also

Echopilot Duo Speed / Depth ....

None say anything about antifouling the speed paddle wheel ...

OP says antifouling is recc'd .... just asking out of interest - which manufacturer / brand does recc'd this ??

See post#3

 

[Refueler]

See post#3

That's a paint .... not the log ..

I'm asking which Speed Log Brand recc'ds painting the paddle wheel .....

 

[Poignard]

I can't see any mention of it in the NASA Clipper Log instructions.

 

[Refueler]

I can't see any mention of it in the NASA Clipper Log instructions.

Exactly ... that's why I asked in #14 ..... I cannot find it anywhere ...

 

[KREW2]

This one. Anyway after scouring every locker, and opening every plastic container the last one yielded up the blanking plug.

https://www.airmar.com/Catalog/Marine/Speed-Temperature/ST300