artem
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Posts: 19
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Post by artem on Mar 12, 2024 17:14:34 GMT -8
I've been using a product called Pyrogrip for sticking my fibreglass ropes to metal parts of woodburners. Just recently, I was applying that product to a damp fire tile (not really a fire tile, but more like one of those pizza stones) and realised that it never really cured - the sealant stayed wet and gooey for a very long time.
This made me wonder what it was made of, and I found this: "PyroGrip Fibreglass Rope Adhesive is made using a unique blend of sodium silicate and natural clay."
So I naturally wondered - is that something that can be mixed @ home?
What do you guys use for your projects?
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Post by martyn on Mar 12, 2024 22:15:56 GMT -8
That sounds surprising that it did not harden assuming you used it in a high heat situation?
Both those materials normally go hard and brittle from my experience, perhaps there is a secrete additive?
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artem
New Member
Posts: 19
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Post by artem on Mar 13, 2024 15:39:54 GMT -8
Did not fire it up, as it's only partially complete. Normally it would just dry up and hold the pieces together, but I guess this time around it didn't because the parts were too damp.
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Post by Vortex on Mar 14, 2024 2:00:28 GMT -8
I guessed it was mostly waterglass by the way they both behave so similar. I used a whole bottle of it once to glue a broken sheet of fibreboard back together, the break was stronger than the rest after.
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artem
New Member
Posts: 19
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Post by artem on Mar 16, 2024 20:23:44 GMT -8
Reading Wikipedia, Water glass is a useful binder for solids, such as vermiculite and perlite. When blended with the latter lightweight fraction, water glass can be used to make hard, high-temperature insulation boards used for refractories, passive fire protection and high temperature insulations, such as moulded pipe insulation application.
Did anyone try making those type of insulating boards?
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artem
New Member
Posts: 19
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Post by artem on Mar 16, 2024 20:36:02 GMT -8
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Post by martyn on Mar 16, 2024 23:10:08 GMT -8
Water glass is used for lots of applications, people like to use it as an additive with fire clay to make risers, to coat ceramic fiber or fire bricks.
It is sold as a high temperature glue ready mixed with fire clay or in its naked form as a liquid.
I have used a lot of water glass but it is not a miracle product as it easily peels off surfaces exposed to the flame path.
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artem
New Member
Posts: 19
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Post by artem on Mar 17, 2024 18:40:01 GMT -8
I have used a lot of water glass but it is not a miracle product as it easily peels off surfaces exposed to the flame path. Bummer! Did you try mixing it with hydrated lime? This guy swears by it www.youtube.com/embed/DyjcRNJBk-s |
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Post by martyn on Mar 17, 2024 22:50:41 GMT -8
No I have not, I am not sure what use I would have for that product but a very interesting video!
I think that hydrated lime may be difficult for me to get hold of but I will ask around and maybe have a go at mixing it.
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