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[deleted] t1_j7imrgj wrote

[deleted]

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Reddit-username_here t1_j7itfpv wrote

Some varnish and stains will fucking spontaneously combust.

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BuffaloInCahoots t1_j7kndhe wrote

If it’s still the same as it was years ago, a lot of them will. I did stain and lacquer work for a summer. At the end of the day, all the stain rags would go in a metal bucket with water in it. We’d put a lid on it and set it in a wide open area.

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m_i_c_r_o_b_i_a_l t1_j7lqjv9 wrote

Finishes with drying oils like boiled linseed or tung are known for doing this. They self heat as they polymerize so a pile of them could heat up to the ignition temperature because the heat won’t escape. Placing them in a bucket with plenty of water prevents this by the thermal mass of the water and blocking the oxidation of the oil. Laying them flat away from each other also works by preventing the heat from building up.

Putting a flame or heat gun next to the finish isn’t such a great idea either. There’s often flammable chemicals in finishes beyond just the oils.

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dublea t1_j7lf2ib wrote

I would also be concerned. Add that most plastic doesn't magically shrink when heat is applied; like that bottle does.

There's a reason I don't use short form content for educational purposes... F that.

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gahidus t1_j7lhd6z wrote

And here I thought this was fish sauce or something.

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Frundle t1_j7lq8vx wrote

They're more safe in the can, and the flash point is high. Where they become most dangerous is when a rag or towel is used to wipe up excess and then thrown away. As the finish cures, it releases enough heat that it can ignite the rest of the trash.

Supposedly, the fire that burned Seattle to the ground in 1889 was started by a glue pot in a woodworker's shop.

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bobjoylove t1_j800wxl wrote

There’s a flicker of fire in the can during the video.

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