Click to visit GAUGEMASTER's home page.
Click to visit RIGHT LINES home page.

Gaugemaster Ballasted Underlay

Image of MATT LOVELL.MATT LOVELL explains how to use this underlay range.

See more SCENICS

Railway modellers are always looking for additional details to add to their railway. One of the most important and realistic details which can be added is the ballast between and around the sleepers. These stones are used to anchor the sleeper in place and form a solid base for the heavy rails.

This detail can easily be modelled in any scale and by using lots of different methods. The easiest and most effective ways is to use our own Ballasted Foam Underlay, and this step by step guide will help transform any piece of track from shop-bought to part of a scenic model railway.

Step 1: Laying the Track

GM200 Grey Ballasted Underlay unboxed.

Firstly open the box and empty the contents onto your baseboard. I'm using the Gaugemaster Grey Ballasted Underlay for this article, but it is also avaiable in Brown. The foam contains indented sleeper spacing to allow easy placing of the track to the foam.

GM200 Grey Ballasted Underlay laid out.

Carefully place the track on top of the foam and line up the sleepers with the indentations.

GM200 Grey Ballasted Underlay with track.

Once you are happy with the foam underlay you can start fixing the foam.

Step 2: Fixing the Foam

While fixing the foam you need to take some care not to use a pin which is too short otherwise you can squash the foam and distort the finish. This could also lead to poor running of your locomotives.

GM200 Grey Ballasted Underlay with pinned track 0.

The best pins to use are the GM67 Long Pins as they are long enough to pass through the foam and into the board below without distorting the foam.

Insert the pins into one of the holes in the sleepers using a GM628 Mini Hobby Hammer or GM669 Pin Pusher with Depth Stop. The pin should sit on top of the sleeper but not squash the foam below.

GM200 Grey Ballasted Underlay with pinned track 1.

GM200 Grey Ballasted Underlay with pinned track 2.

Step 3: Curves

Along with straights this foam can also be used with curves from 1st radius, it is very flexible and with care can be curved easily. Just use the same method stated above.

GM200 Grey Ballasted Underlay with pinned curved track 0.

GM200 Grey Ballasted Underlay with pinned curved track 1.

You can now apply these instructions to create an oval of track.

Go Back To Top

Step 4: Points

This next step will cover the use of the GM204 Points and Crossing Grey Ballasting Kit (also avaiable in Brown). This kit contains three sections of foam and a small bag of ballast in the matching colour and grade for the Grey Ballasted Underlay.

Start by laying the point on top of one of the foam sheets making sure there is sufficient overlap.

GM204 Points and Crossing Grey Ballasting Kit 4.0.

Using a sharp scalpel; cut around the point leaving about a 2mm gap between the edge of the foam and the sleepers.

GM204 Points and Crossing Grey Ballasting Kit 4.1.

Once you are happy with the position of the foam and point work you can start applying the loose ballast to the point. Cut a small hole in the bag to use as a funnel, use this hole to pour out the ballast onto the sleepers of the point.

GM204 Points and Crossing Grey Ballasting Kit 4.2.

This same method can be used on the ballast shoulder. The ballast can be glued down using the Deluxe Materials Ballast Bond or Ballast Magic adhesives.

GM204 Points and Crossing Grey Ballasting Kit 4.3.

Step 5: Combining the GM200 Underlay with the GM204 Crossing Kit

The last part of this instruction combines both parts of the ballasted underlay together. Start by using the method in Step 4 and when the tail end of the point comes off insert a section of the GM204 foam sheet underneath the straight sections. Then depending on how long you want the siding or junction you can add a section of the GM200 after the point.

GM200 and GM204 Combined 5.0.

Using the loose ballast in the GM204 you can blend the straights together forming an invisible seam. Again the loose ballast can be glued down.

GM200 and GM204 Combined 5.1.

The Gaugemaster range of Ballast Underlay is available in both Grey and Brown variants and is also available in both OO/HO and N Scale.

Go Back To Top