Author Topic: Can we talk tape?  (Read 5029 times)

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Offline Pirateguy

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Re: Can we talk tape?
« Reply #25 on: August 01, 2018, 02:37:30 am »
for some things i like to use 2 layers of carpet tape with a layer of foam in between.
the foam divided the stress on the tape and prevents it from pealing off over time if there is any weight on it, like
with things taped to the side of something.
 

Offline Jwillis

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Re: Can we talk tape?
« Reply #26 on: August 03, 2018, 06:39:27 am »
WD-40 is a lubricant /water dis-placer used to prevent rust by making a barrier from moisture.Also works well on electrical connections that are exposed to moisture.Although dielectric grease works best for connections WD-40 will "absorb" moisture quickly releiving shorts caused by moisture.All petroleum oils will absorb water turning a milky color.
Synthetic oils are processed from petroleum just as "mineral oil" is but has more uniform molecules and stronger polymer chains.So it doesn't break down  and acidify as quickly as conventional oils.But doesn't prevent absorbing carbon from combustion.Gasoline carbon is abrasive where as diesel carbon is much less abrasive.So other additives are introduced to limit the carbon abrasion.Teflon was an example .Others may contain molybdenum or copper. These soft metals act as microscopic ball bearings decreasing friction.
The mineral oil used in baby oil is a liquid paraffin oil made from the production of gasoline(petrol).Parrifin oil is is a very mild oil used in medicine ,food ,cosmetics ,ect.
All petroleum based oils are mineral oils but are seperated by classification. Class 1 and 2 are lubricants where as baby oil is a class 3.
Theirs no snake oil just chemistry.
 
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Offline KL27x

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Re: Can we talk tape?
« Reply #27 on: August 03, 2018, 07:03:49 am »
Awesome info.

Yeah, I knew that mineral oil was almost the same as paraffin. Just slightly shorter chains. Also it is relatively homogenous. And it is one of the few petrol distillates which is FDA approved safe for human consumption. So it doesn't dry out, like 3 in 1 or WD 40, which are crudely refined with lighter and heavier constituents, some of which are volatile, and some of which are heavier. The 3 in 1 oil, you can see red and brown solid crud settle in the bottom of the bottle, even. This is why I use mineral oil for general purpose lubrication and cleaning. It's a known quantity, and it doesn't gum up or evaporate. For low temp things like cleaning and lubricating hand and air tools and whatnot, I don't think it really gets much better. No oil is bad. Any oil is pretty good for lube and rust protection. If it doesn't gum up or go rancid, it's a little gooder.

If I need some solvent action for cleaning up carbon and gunk, I can mix it with a solvent, myself. Or I can clean the tool with solvent, then oil it.

As for no snake oil... Hmm..

Norton honing oil does not list the ingredients on the bottle. Really no specialty snake oils do. So right now I can buy it for almost 8 dollars for 4 oz. Food grade mineral oil, $20.00 a gallon.

I just google MSDS for Norton mineral oil. It's 100% white mineral oil. Obviously that was the only reasonable outcome, since it's food safe.

"Specially formulated" might mean something for quality motor oil. For many specialty oils this really means "we create several tons of this here petroleum distillate byproduct of the gasoline industry every year, and it works about as well as anything else when you put it on your tools. And when we put it in a tiny little applicator bottle, I bet you will pay 10x more for it."

And yeah, this works. I bought  4 oz can of Norton honing oil knowing perfectly well what it was. For the flip top dispenser can. And knowing when I refill it with mineral oil, it's actually still labeled correctly.
« Last Edit: August 03, 2018, 07:54:46 am by KL27x »
 


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