Wipe on poly?

[robin]

Who needs lighter fluid?

[wazkelly]

Never had the used TO soaked rags self combust. Might see how easily it ignites after next application as I reckon there is more linseed oil than flamable stuff.

[Simon Barden]

A bit of web searching seems to indicate that you need a lot of oily rag in order for self-combustion to occur. Also, the hotter the air temperature, the more likely it is to happen. I cut clean cotton rag into roughly 10cm squares, and the Tru-oil only goes onto a small portion of the rag. There are some videos of linseed oil soaked rags catching fire, but there's a big bunch of material all crushed up and it's all oil-soaked. The outer layers insulate the inner rags, allowing temperature to build up, as some heat is given off as the oil dries and oxidises in contact with air.

So a small bit of rag opened out, isn't going to cause any problem.

[wazkelly]

Might relate to the method of using paper towell or cotton wool scrunched up into a ball and placed inside a rag, fully soaked, and rubbed in vigorously as that does generate heat with lots of finish still trapped in the applicator.

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[DarkMark]

Back to the poly v’s Tru Oil education...
1) I used about 30 coats of Tru Oil on my guitar. Would I expect to be using a similar number of coats using wipe on poly?
2) When I wet sanded the Tru Oil I loved the feel of the surface, however the burst deserved the full gloss treatment. Will wet sanding wipe on poly give the same texture?
3) Tru Oil has a reputation for a yellowing finish. Will poly yellow or is it clear?

I found the neck on my polished Tru Oil guitar feeling ‘grippy’, so today I rubbed the neck back with 0000 steel wool. Much happier with the feel and like the satin look. Considering it as how I want a natural finished guitar to look.

[Simon Barden]

Poly should stay clear (unless there's something wrong with it). TruOil will add an initial yellow tint which will deepen as it gets older. Both will give a full gloss finish provided you put enough sanding and polishing effort in. The poly should go on a bit thicker than TruOil, but you'll probably want to still use maybe 15-20 coats in all including intermediate sand-backs.

[DarkMark]

Hmm, I might give it a go next time.