19ft-3in Steam Sidewheeler.

by Fred Rosse
(Jenkintown, PA)

My Boat 19ft-3in Steam Sidewheeler.

Plywood Sharpie type hull.

American Walking Beam Engine.

First boat I have built, although planning to build for nearly half a century.

Better late than never.

Have built a few more since 2010

Comments for 19ft-3in Steam Sidewheeler.

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Amine blush washes off with water
by: Harry

Hi Fred

Mike is right , actually.
It`s Amine Blush
I`m using " BoteCoat "  premium Australian made epoxy , one of the most popular and trusted epoxies in this country .

It is claimed that this epoxy does not produce Amine Blush .It does.( ask me how I know ) LOL....

Amine blush washes off with water.

I would get a scraper and remove that varnish and wash the surface , then lightly sand and re- varnish.

Epoxy will not only chalk under ultra violet rays , in time it will yellow , become brittle ( weak ), and lose adhesion.Can you tell us what the brand name of the product ( varnish ) is ?

It will determine what to use as a stripper if you want to go that way. 

amine blush
by: Fred

"better to just sand it off?" 

The varnish is well adhered in some spots, then flakes off on others. 

I cleaned up the epoxied surfaces with acetone before varnishing, but have very inconsistent results. 

Every few inches there are patches of varnish that I can peel away with a toothpick, then right next to those patches, varnish so well adhered that a sharp steel chisel is needed to scrape it loose. 

Sanding will take me about 60-80 hours work, especially where there are corners to be sanded out, which is the entire perimeter of the boat deck.

I want to do it in a few hours.

"amine blush’ left on the epoxy?" 

No amine blush, epoxy is excellent, but not UV resistant.

So the question remains: What brand of Varnish stripper is available that will not remove the epoxy?

just sand it off
by: Mike

Hi Fred,
As the varnish hasn’t adhered well wouldn’t it be better to just sand it off?

Personally I don’t like using chemical strippers at all but that’s just a personal thing.
Is the reason that it didn’t adhere due to the varnish or could there have been some ‘amine blush’ left on the epoxy?

A good sanding should get rid of any loose varnish and any ‘blush’ and create a good ‘key’ for subsequent coats of varnish.

Varnish Removal with Chemical Stripper
by: Fred

I put clear Epoxy on my Mahogany decks, then brushed over with UV resistant Varnish. 

The Varnish has poor adhesion in many places, and I want to strip off all the Varnish and start over. 

What brand of Varnish stripper is available that will not remove the epoxy?

Thanks for Information.

sell by date
by: Mike

Hi Fred,

I have seen them advertised but I haven’t used any of these UV resistant epoxies.

I’m a cynical old fart, so I tend to take all advertising with a pinch of salt.

The UV protection in varnish has a “sell by date”, for it to remain effective it needs to be ‘topped up’ regularly.

So I would assume that the same applies to the epoxies (?).

If that is the case wouldn’t it be simpler to stick (no pun intended) with a good quality varnish that can be refurbished once (or twice depending on the conditions) a season?

varnish does not adhere well
by: Fred

Two things I like about the epoxy, it goes on thick and floats out a nice surface in one coat.

I put the UV varnish over that because I am told the epoxy will eventually become chalk like if not UV protected.

But the varnish does not adhere well, and even if it did, recoating would be required often.

I am hopeful the UV epoxy will last a long time.

The non-UV epoxy I already have on the hull, with weather/sun exposure, looks good after 3 years, but I trailer the boat, and it is out on the water only about 8 days a year.

I plan on using the boat much more now that I am approaching retirement.

UV resistant epoxies
by: Fred

I understand there are UV resistant epoxies now available.

Does anyone have direct experience with this, and if so what brand is worth purchasing?

Thanks for Information.

by: Harry


Steam has that "something"  an internal combustion engine lacks.

Love the sound too.

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