Ultimately, we can't tell you exactly how long you can leave butter out. We have no problem with leaving butter out to soften as long as it is well-covered. It usually doesn't take us more than a couple days to go through a stick anyway! We've never had rancid butter in that time.
For complete instructions, see my weekly column. Note: The vinyl melts in just a few minutes and is warm to the touch when you pull it from the 200-degree oven (don't use a hotter oven or the vinyl will start releasing toxins). You can form it by hand immediately, but use leather gloves if you're nervous. All beginners in Record Upcycling should try a bowl.
The melting point of solder depends upon its particular formulation. In the case of eutectic tin-lead solder, the melting temperature is somewhere around 360 degrees Fahrenheit. The temperature becomes a bit higher with different formulations of solder, such as 60/40 tin lead, which may be 10 degrees higher.Higher temperatures can also be expected for lead-free versions of solder, and that may change the temperature at which youâd want to use for your soldering iron.he temperature becomes a bit higher with different formulations of solder, such as 60/40 tin lead, which may be 10 degrees higher. Higher temperatures can also be expected for lead-free versions of solder, and that may change the temperature at which youâd want to use for your soldering iron.