Anybody else notice this about JB Weld?

[jefuchs]

This was driving me crazy. I knew I had mixed it right. Then I learned that the promise you see in the store is not in the directions you read at home after you open the package. Shame, JB Weld.

 

[roughrider]

Yeah, I noticed that before too. I always figured the 20-25 minute thing was with regard to its working time; that is, you can still move the parts and push it around. I go by the little bit of leftover I have on the mixing board to tell me when the actual hard set has occurred.

 

[Tanstaafl]

One can get fast cure time with the quick set JB Weld, but it not nearly as strong or heat resistant as the original.

http://www.jbweld.com/product/j-b-kwikweld-3/

An aside, but has any one tried one of the high metal content epoxy solder substitutes?

http://www.google.com/#hl=en&tbo=d&...243,d.cGE&fp=a8a9febf8621cbe9&biw=960&bih=397

 

[Deleted member 12676]

a classic case of reading what we want it to say.
It actually says it "sets to a dark grey color", not "sets hard" in 20-25 minutes.
Put it in the sun or by an incandescent light bulb to make it harden faster.

 

[jefuchs]

a classic case of reading what we want it to say.
It actually says it "sets to a dark grey color", not "sets hard" in 20-25 minutes.
Put it in the sun or by an incandescent light bulb to make it harden faster.

Regardless of what it says, it was still soup after three hours. At 25 minutes, there was absolutely no change in consistency. I've posted this picture on three websites, and I consistently get comments telling me that I misinterpreted the label. But it clearly says it sets in 25 minutes on the package, then says it sets in 4-6 hours on the tube. If it's so simple, they would have said the same thing on both labels.

Honestly, it stayed liquid for hours. There was no truth at all in what the outer label claimed. Absolutely nothing happened in 25 minutes. No change. Nothing. The tube was labeled honestly, the package was not.

 

[Deleted member 12676]

one of the definitions of the word "set" is "to cause to assume a specified condition" which is the definition that applies in this case because they specified the condition it will set to: "dark grey color".

 

[jefuchs]

You can split hairs all day, but trust me, nothing changed in the first few hours. Not the color. Not the consistency. Nothing. And even if you can make an argument that some unseen molecular change occurred in those 25 minutes, that is of absolutely no value to the customer trying to decide if a product will meet his needs.

No matter what you've seen with your own eyes, or experienced first hand, somebody on the internet will tell you it never happened.

 

[Tanstaafl]

There is no doubt one can get a bad batch. But OTOH, I have used JB Weld for many years and have never had a problem with it.

 

[grinningremlin]

OK, first I'm not there so I can't see what you're seeing.For it to be a bad batch the catalyst would have to out-gas, it's in a metal tube so that would be impossible (the molecules are too big) unless there was a break in the tin (very possible).My thought is you put too much of one or the other.Try small amount mixes to get the right consistency, should be a light gray when mixed correctly, I've noticed you need to use a bit more base sometimes.

 

[Deleted member 12676]

the results are worth the wait. great product. when I use it I expect it to take all day to get good and hard.