AVOIDING GLUE MARKS ON LOG LOADS
I’m making my own loads for a rake of Hornby OTA timber wagons from dried twigs. How do I disguise the glossy deposits left by the PVA glue? Brian Warburton, by e-mail
George says: A few years back, I treated half a dozen Hornby and Bachmann OTAS to log loads using Hawthorn twigs that had been left in a warm room for a few months to dry out. I’d initially thought of using PVA to bond the twigs together but, being impatient, I plumped for cyanoacrylate glue instead. An odourless formula was employed, to avoid any staining of the wagon’s paintwork and allow a little time for adjustments to be made before the glue cured (about 30 seconds). The glue was applied with a pinpoint applicator tip and, as much as possible, the glue was applied to areas that would not be visible from the outside. Some blobs of dried glue did show through, however. Like PVA, the glue dries to a slightly glossy sheen that contrasts with the natural wood bark. A quick remedy was an all-over coating with clear matt varnish, which rendered the glue stains invisible.
Cyano glue offers a faster option to bonding logs than PVA. A liquid accelerant speeds up the bond further, which is helpful when using slower drying cyano, and allows for adjustment.
Matt or satin varnish will resolve any problems of shiny glue stains on the logs or wagon paintwork. Restraining straps can be cut from electrical insulation tape.