cut and paste from another forum:
Whilst view plastic welding I came across 'Superglue & soda' - this is sooooo useful - it makes superglue work where it normally wouldn't and adds great strength - smashed something and lost some bits - lay the remaining bits out on gaffa tape - fill the voids with baking soda and pour on superglue - sets instantly like opaque glass which can be filed/sanded or drilled.
I'm looking to cast small parts with it using Oyumaru modelling compound.
Window frame makers and woodworkers use an accelerator on one side of the joint and superglue on the other - I had a ripped gaiter that I couldn't glue so I moistened the edges and dipped them in soda and then applied glue - the soda accelerated the curing and bridged any gaps.
Apparently can glue polypropylene.
Great advantages are filling small or big gaps, no setting time, strength and extremely low cost.
Ton of videos on Youtube.
Just wondering if anyone on here has heard of it, or used it.
I'm going to have a go at repairing an awkward crack in my lexus bumper with it.
Not used soda .. but have been using superglue/sugar to repair plastic for some years. join plastic bits together, moisten surface of both bits of plastic, sprinkle sugar on so it forms a "crust" then drop superglue onto the sugar until it just changes colour. Allow to harden.
The superglue uses the moisture to set - that's how it works anyway - and joins all the little crystals of sugar together, as well as attaching to the plastic surface. this gives a HUGE surface area of contact, rather than just the two broken bits.
Once hard - a good couple of hours - it can be filed/ground/sandpapered to the original contours.
I would guess that soda does exactly the same thing
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Topic: Superglue and Soda (Read 984 times)