Joint compound

Kealyboy

Hi can uniwhite joining compound be used as an alternative to boss white/hawk white.

I’m using it from domestic applications on instanter fitting’s olives (brass fittings) on copper pipe and qualpex pipe.

I previously would’ve always used boss white but I don’t use it that often and after buying it the next time that I use it it’s gone hard in the tin so I’m just looking for an alternative joining compound that won’t go hard overtime.

Lenar3556

Yes, and it’s a better product.
jointing compounds have a limited function on compression fittings, but they do help to lubricate the assembly.

10-10-20

https://www.boards.ie/discussion/comment/122704961#Comment_122704961

Is that stuff not water-soluble? Any time I've used uniwhite it has just come off or washed away. The MSS for it says that it's just calcium carbonate and talc, so that would make me think that it's supposed to be water-soluble. Maybe I was expecting it to be oily like plumber's dope.

Lenar3556

https://www.boards.ie/discussion/comment/122705017#Comment_122705017

It is, but on compression fittings it really only acts as lubricant for initial assembly and has no sealing function thereafter. Yet it is still approved for gas applications.

Slic-tite is a nice product which has PTFE built in for cases where you need a higher end solution.

Kealyboy

thanks guys might just get that slic-tite. Sell it in screwfix bit pricey tho €18 but at least it will last me a long time and won’t dry up on me. Thanks