Hi all, I have been experimenting with various resins,adhesives and metal filler powders recently.
The Alba shaper I'm currently rebuilding had some unsightly blow holes and porous areas on the main body.
These were mostly in highly visible areas of the casting so I resolved to do something to permanently repair the areas without using any high heat processes like brazing/welding.
Many of you will already be familiar with the process of using baking soda and cyanoacrylate super glue to form a rapid setting and very hard opaque filler compound.
I thought I would take this a few steps further by first mixing brass powder with baking soda and then wetting it out with low viscosity super glue.
The results were very impressive so I tried the same with iron powder and got an equally satisfactory result.
Ultimately I have found when using finely powdered iron or brass they work equally well without the addition of any baking soda.
The iron compound is tough,files to shape really well and has a self lubricating feel to the finished surface.
In the past I have also mixed my own epoxy based brass and iron based liquid metals,and these also turn out as a very robust metal repair paste.
Doing a little further research into commercially available products I found a system called Q- Bond which seems very similar to what I have been making and incorporates an industrial super glue with a metal powder.
I do also use the ubiquitous J.B Weld and just reordered some from Amazon,but the stuff I have been making has a far closer appearance to cast iron than the J.B Weld.
I'd be interested to know of any of your experiences with metal repair pastes,putties or resins whether homemade or purchased.....Plenty more conversation to be had on this subject as it is a really useful technique to master.......OZ.
Baking soda & superglue guitar repair link: