information - Scottish Natural Heritage

Countryside Commission for Scotland
Battleby Redgorton Perth PH1 3EW
© Perth (0738) 27921
G.R.P. 'MUSHROOM' WAYMARKER
100
To obtain an image integral with the panel, the
original drawings (ink on tracing-paper) are
transferred, in reverse, to silk screens, and
used to screen an image on to a mould in
reverse. This is then backed with a layer of
gel resin in the background colour, followed by
layers of glass strand matting and rovings in
the usual way. After curing, the flat truncated
triangular panels are accurately trimmed to
size and laid in a female mould the shape of the
finished 'mushroom'. After bonding the
adjacent edges and further laying up, 12mm
plywood stiffening panels are added and
overlayed with a final layer of GRP. Also at this
stage the mounting bracket is incorporated.
On site, each top, post and base plate is
assembled, the hole dug, and the assembly
concreted in, orientated in the proper direction.
The unit sketched here is manufactured by —
Glasdon Ltd.
© CCS
INFORMATION
SHEET 2.8.5
This design provides interpretive information
on several themes at each of a number of halts
on a trail — each of which can be colour coded
in relation to a section of a trail booklet. In
addition each post is capable of carrying
directional arrowheads in colours related to
adjacent posts.
A combination of screen printing glass
reinforced plastic lay up and moulding
techniques is used, the finished pentagonal
'mushroom' shape being mounted on a
standard resin coated 100mm steel tube
concreted into the ground.