On Thu, 9 Feb 2012 21:28:07 +0000, Chris King
<
ch...@nospam.cking.free-online.co.uk> wrote:
>Just about to start doing the ballasting on my now pinned down/laid
>model railway, I understand from research you need to mix 50/50 of Wood
>Glue and water?
>Whats the best way to mix this? I dont want to make too much..
>How do you measure it correctly etc etc, to make sure the consistancy
>is correct?
>
>I have a dropper to apply the mixture when done, but I was trying to
>work out how to measure the correct fluid-ounces etc.
I use an 8:1 mix of PVA bought by the gallon from a builders'
merchant, and water. The obligatory British Standard Drop of washing
up liquid is added off course. I make up stock, 0.5l at a time, it
lasts a couple of months without settling out if kept in a closed
container (I use a plastic milk bottle).
Before adding glue, I recommend spraying the dry ballast with a mist
of "wet water" (water plus a drop of washing up liquid). I bought an
atomising spray from Hobbycraft which is good for this, it holds 125ml
of water, you pump it with the lid, and then spray. A squirter of the
type used for spraying domestic cleaners and such won't be much good,
the drops are too big and disturb the ballast. You need a fine mist.
I then use a dropper or for longer runs (which most of mine are, given
the size of my layout) a bottle with a very fine tip. Drop close to
the rails, again to avoid disturbing the ballast. You can fix minor
dislodged bits with a stainless clay moulding tool dipped in water.
Actually the way I do it starts by painting the baseboard with black
Gesso, then PVA, add a thin layer of ballast well pressed down, apply
wet water and thinned down glue and allow to dry. This base layer of
ballast stops the dry ballast from flowing away from the tracks as you
place it.
Then I add the main ballast, and use a children's sponge paintbrush to
brush off the sleepers, and a stiff stippling brush to clear it away
from the chairs. The result is usually pretty good. It took me a while
to get to this technique, with some of the older bits it took ages to
get the ballast off the sleepers.
Guy
--
Guy Chapman,
http://www.chapmancentral.co.uk
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