Review on Efficient Rubber Cement Cleaner: Bestine Solvent And Thinner For Ink, Adhesive, And Parts - 32Oz Can by Tim Arnold

I can't live without this stuff. Nearly every thing I buy has stickers on it, that leave gum residue when I peel them off. This solvent has barely any odor at all. It is NOT like "Goop-Off" which has a strong smell. I use this to remove sticky/gum and to final rinse parts when degreasing. I'll clean them first in cheap paint thinner. Then let them drip onto a rag. Then wash them just enough with this to rinse away the smelly paint thinner. Then let dry or blow off with an air gun. This stuff evaporates very quickly. If you get most of the paint thinner off first, then you can collect the runoff of this solvent into a sealable container (glass or metal with good seal, or else this will evaporate right through many plastics!). I can re-use it several times this way. This is a very pure n-heptane. The only other way to get something like this would be 3-10x more $$$ for lab reagent grade n-heptane from a chemical co., which consumers wouldn't be able to purchase anyway. NOTE: Hardware store Naptha is not quite exactly the same thing! Naptha is a mix of petroleum distillates with a certain boiling range (like gasoline), and includes some of hexane(s), heptane(s), and octane(s). There will be tiny amounts of other stuff too, like maybe a trace of benzene (but I think they have to remove that to "as low as reasonably possible" levels). So don't worry about benzene in Naptha. What concerns me is that in recent years some science came out which shows n-hexane to be quite toxic relative to n-heptane. n-hexane is present as a major constituent of naptha. https://en.wikipedia.org/wiki/Hexane#Safety So I like this stuff. Safe. I don't bother with gloves, unless I've already got my hands too dry.The serious hazard is: it's basically like odorless gasoline. So if you are using more than a few mL (a few spoonfuls) indoors, then you need enough ventilation to prevent a vapor cloud from accumulating that could start a flash fire. One other thing: It's almost impossible to pour hydrocarbon solvents from any container without it running down the side and wasting a bunch. So I've tried to keep about 125-250mL (1/2-1 cup) in the house in a little Nalgene wash bottle. Problem: it evaporates very quickly! It basically passes right through plastic bottles, one molecule at a time through the gaps between the polymer chains. So even a sealed plastic container has the same problem. The only squeezable plastic container that holds it without loss is teflon wash and dropper bottles. These are VERY $$$! I look for them on Ebay and found a deal on 4 little 1oz Nalgene FEP droppers for about the price of one new ($69), and I found a 125mL FEP wash bottle for about $60 that to get new, they are about $118 (ouch!). So I'm set now. The stuff doesn't evaporate from these bottles at all, nor does it get contaminated from plasticizers extracted from the plastic--which can be a concern for cleaning optics or semiconductors, in case you are fabbing chips in your kitchen ;-)