Talk:Epoxy

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Intention?[edit]

Under the heading 'Consumer and marine applications' we are told: "Large quantities of mix will generate their own heat and greatly speed the reaction, so it is usual to mix small amounts which can be used quickly." I'm thinking that this is intended to mean that small amounts are used so that the amount is used up before it 'goes off'. It has possible confusion following the first part, in that it seems that if large quantities 'greatly speed the reaction', then using small amounts should mean that they can be used less quickly, rather than 'can be used (up) quickly'.

So I'm not saying that the current wording is wrong, just that it caused me a double take and could be better. Also, the statement isn't specific to .consumer and marine, is it? Wayne 10:14, 27 April 2022 (UTC)[reply]

Agreed. I will try and edit today GRALISTAIR (talk) 13:11, 27 April 2022 (UTC)[reply]

Stick with me, kid[edit]

I've always understood epoxy adhesives bond with the materials they join. Can an epoxy bond be broken without removing part of the attached object(s)? 69.11.100.208 (talk) 01:19, 12 February 2024 (UTC)[reply]

Bonding isn't an all-or-nothing. For example, typical epoxy does not bind as strongly to materials with low surface energy. If it is only on the surface (impervious fairly flat material) rather than soaking in, it can sometimes be scraped off with a razor blade. And it can be softened with heat or various organic solvents to weaken the bonding and allow easier removal. DMacks (talk) 01:30, 12 February 2024 (UTC)[reply]

So something as simple as a hair dryer might do it? (Or a bit hotter.) Thx! 69.11.100.208 (talk) 23:02, 17 February 2024 (UTC)[reply]

It sure might, depending on the exact epoxy formulation and surfaces to which it's stuck. DMacks (talk) 23:54, 17 February 2024 (UTC)[reply]