Questions and Answers for Oatey Soldering Kit with 1.7 oz. Lead-Free Water Soluble Flux Paste and 4 oz. Silver Solder Wire

A:  This solder is designed for use with copper pipe used for plumbing applications. We suggest reaching out to the manufacture of your AC unit to see what they recommend.

A:  stacy, NO, YOU CANNOT.

A:  This product is not corrosion resistant.

A:  First use sandpaper or Emory cloth to clean the joints you will be soldering then apply the Flux to birth surfaces. Join the 2 pieces and using a propane or MAPP gas torch heat the joint, not the solder, evenly. Once the metal is hot touch the solder to the joint and let the metal melt the solder. The solder will actually pulled inside the joint by the heat and it will bond the 2 pieces of metal together. Once the solder is applied remove the heat from the metal and let it cool for several seconds without moving it. It takes a little practice but it's not too hard to get the hang of it. Good luck.

A:  With a propane torch

A:  Generally, a torch of some kind is used when applying this product. The link provided has instructions on how to solder pipes. https://www.oatey.com/faqs-blog-videos-case-studies/blog/how-solder-copper-pipe

A:  If it is a copper connection yes. The pipe will need drained of water before you can attempt to solder the fitting.

A:  Only if you take joint apart, clean flux and re solder

A:  Cold water 2” line sounds like pvc or abs, this product won’t work unless it is copper.

A:  Yes, if you take joint apart clean clean and clean fitting and pipe, flux and re solder

A:  No, that’s not the kind of pipe you solder. You need pipe dope, as they are threaded connections. Disassemble the pipes, re-dope them, and tighten with a pipe wrench.

A:  It does not work on stainless steel. Oatey does not manufacture products for this application.

A:  The kit has two parts: Flux Paste and Solder Wire. Solder Wire can be used on stainless steel, but flux paste is not. You need stainless steel solder flux, which HD does not carry.

A:  H2O flux is not for use with stainless, aluminum or magnesium so the description for H2O is correct.

A:  Works on most metals except for aluminum and stainless steel

A:  At Present, Oatey website states that it does not manufacture a solder or flux for this application. The Literature may be incorrect.

A:  Flux is used to keep CLEAN materials CLEAN while soldering / brazing. Haven't tried it, but I don't see why it be a problem. Acid flux helps to clean surfaces while soldering- with all of the associated cleanup and fumes! Use caution with acid flux. This flux is water based and has a very low fume level.

A:  No. We don't offer any products for stainless steel. This is normally a brazing process.

A:  Yes

A:  Not stainless

A:  No. Only copper to copper or brass to copper.

A:  Yes

A:  This product is not tested or designed for use in this application. This is designed for plumbing applications.

A:  No

A:  Yes, probably but most people use rosin core solder for silversmithing