Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Thanks for the comments, you guys!

From my experience, sealants in the form of slices cut off (soft) silicone tube work excellently and adapt very well and smoothly to the moulded openings for the sight-glass. I wonder if the red, round washers shown in the (very nice) photo presenting all parts for the assembly might be a bit hard...

Fear not, the seals shown in the photo are silicone rubber o-rings (https://www.mcmaster.com/1173N008/), which are pretty soft. They are great for these high-temp, low-pressure applications. These are the same kind I used on the Doll vertical engine I worked on recently.

Painting the base green is an excellent idea, btw, but what about adding some pink spots and applying a unicorn-transfer to the boiler after painting it with stove-pipe silver??? I wonder why Arnold has not recommended this before... ;-)

I'm surprised as well. Arnold usually shows quite a flair for this type of embellishment. I think the pink polka-dots may be a bit over-the-top on a green base. Unfortunately, I don't have a unicorn-transfer, but I do have some "Powerpuff Girl" stickers that my grandniece left behind over Christmas. I don't think they'll survive on the heated boiler, but they should really "pop" on the base. [ Guests cannot view attachments ]