Supplemental material for Sugru bonding
I have a project coming up where I need to replace rotten rubber pads on a 1952 Elna Supermatic.
The foot pad 'wells' are too deep to just use Sugru, I would need at least 20-30g for each (and there are four pads total).
Are there any materials that you would recommend as a cheap filler that bonds well with Sugru? I would save quite a bit of money if I could fill the well with x amount of material, and use 5g of Sugru for each pad.
Thanks in advance,
this is a little tricky ro answer as I can't fully visualise the problem.
It sounds like there are deep wells where the rubber feet are missing from your sewing machine. I imagine that inserting a wood dowel or rolling up cardbaord to fill the bulk of the space could work very well. You could then build the sugru up around the surface of the machine as well.
Alternatively, you could build replacement feet just next to the wells ?
Does this help at all ?
Here we go, this will help with visualization I found a website that has a picture of th bottom of one of these machines.
Looking at this, I agree with James about building the replacement feet next to the originals, It would prolly be the best solution.
I drew in on this pic in blue how I would make the replacment feet.
If that idea doesnt work (maybe it would prevent it from fitting in its carrying case?) then lets see.
Don't use e6000, it is one of my favorite epoxies but I discovered that Sugru doesn't bond to it very well.
Hot glue would probablly work, I havn't noticed any problems with that, it seems to stick quite well.
I'll try to brainstorm other solutions.
@james + mallin
Thanks for the response! You're both spot-on regarding the case.
The carrying case has precisely-shaped dimples where the feet sit. If I were to create replacement feet on the frame, I would no longer be able to use the case.
I'll have to experiment with some hot glue. :)
I also have some projects I might be working on later, if I have some spare materials I share experiment.
What about using some kind of RTV silicone (such as the type of material for creating molds for scale models) or even a 100% silicone caulking, which is a little less fluid and could serve as a base. You could then finish up the job with Sugru, which would stick very well to the existing silicone filler!
Is there a certain brand/type of silicone caulking that you recommend?
Also, does it shrink significantly after curing? I've only used GE Kitchen/Bath Silicone (which showed a moderate amount of shrinkage).