Sprint cars in 25th scale *update*

[djflyer]

For anyone that is interested in Sprint cars or Midgets, you have to check out Woodguy Racing on Shapeways.com.  He has at least half dozen different styles of sprint cars - from vintage to VW powered to Chili Bowl style.  It looks like they are intended for slot cars but have some really good detail and could be very interesting with a little effort.

Pricing is around $50- 60, which isn't cheap, but you can pay at least that for a good resin kit.  He has a bunch of other stuff for dirt track and modifieds in 25th and 32nd scale also.

BTW - I have no relationship or financial interest in these products - just found something interesting while surfing.

Edited August 25, 2017 by djflyer
title change

[TonyK]

Thanks for this interesting site. I wonder how the "white nylon plastic" works with primer. The nylon part seems odd to me but I suppose they wouldn't use it if it didn't work well for painting.

[djflyer]

Thanks for this interesting site. I wonder how the "white nylon plastic" works with primer. The nylon part seems odd to me but I suppose they wouldn't use it if it didn't work well for painting.

Did some research as I have bodies from other vendors that are also printed in WSF (White Strong Flexible). The printing process uses powdered nylon and the finished product does end up being porous. Its recommended that you seal it before finishing.. You can sand the item to a smooth texture but that doesn't prevent paint from soaking in.

There are several methods I have found. Coat the item with thin Super Glue (works great on smaller pieces) and will also stiffen the part a bit; or two-part epoxy thinned with denatured alcohol to water consistency then brushed-on (Smooth-On makes a product called XTC3d that' formulated just for this), or dipping in a product like Thompson's Water seal.  A water-like viscosity appears to be the most important factor. 

Best process is to apply first coat, let dry-rough sand; apply second coat, let dry- medium sand, then finish with primer and paint. Acrylic paints are recommended most often.  Some people claimed to go straight to a primer like Tamiya Fine white or Duplikolor High-build but didnt indicate method used.

I will post any other information I get on this.