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Why do the older razors crack in the handle?

I've seen alot of the older razors crack in the handle... Is it just the time factor?? Do the cracks hurt the shaving ability of the razor?? Do they diminish the value of the razor?? Is there a way to protect the older ones from cracking?? I have a 1908 Single Ring that hasn't cracked, it's in great shape... I'm just wondering is there a way to prevent it?? Will shaving with it make it more prone to cracking or will storing it?? Just wondering.. Thanks for the input!!
 
Mostly it happened because of the way Gillette made the handles. They were friction-fit, a process which work-hardens the brass and sets up internal stresses that lead to cracking. A final annealing process would have been a good idea, and Gillette probably started doing that later on. Few brass-handled Techs show cracking.

At the extreme end of the spectrum I have a NEW Deluxe with a fully-split handle and no evidence of wear. It may have cracked before the razor was ever used. My razors with hairline cracks appear to be stable, but some folks use a little epoxy to ensure that the crack will not grow. Probably most collectors would prefer the razor without epoxy, though.

If your single ring has not cracked yet, it is probably safe to shave with. Keep it away from ammonia, though: http://en.wikipedia.org/wiki/Season_cracking
 
Mostly it happened because of the way Gillette made the handles. They were friction-fit, a process which work-hardens the brass and sets up internal stresses that lead to cracking. A final annealing process would have been a good idea, and Gillette probably started doing that later on. Few brass-handled Techs show cracking.

At the extreme end of the spectrum I have a NEW Deluxe with a fully-split handle and no evidence of wear. It may have cracked before the razor was ever used. My razors with hairline cracks appear to be stable, but some folks use a little epoxy to ensure that the crack will not grow. Probably most collectors would prefer the razor without epoxy, though.

If your single ring has not cracked yet, it is probably safe to shave with. Keep it away from ammonia, though: http://en.wikipedia.org/wiki/Season_cracking


So it's prolly a good idea to NOT clean it with Scrubbing Bubbles, huh?
 
Scrubbing Bubbles is fine. I've never have issues with them doing that. I've also replated many razors with cracks and the plating stabilizes the crack a bit more too.
 
My chemistry may be too weak for a definitive answer, but I think it is safe. Scrubbing bubbles contains ammonium chloride compounds, but exposed brass should only react with free ammonia.

That said, the directions on Scrubbing Bubbles recommend against using it on brass bathroom fixtures. According to this previous thread that is because it may damage the acrylic coating on those. But with exposed brass we do not have to worry about that.

Scrubbing bubbles warning about brass is directed at brass bathroom fixtures. Brass fixtures are coated with a clear acrylic to prevent tarnishing. Apparently Scrubbing Bubbles contains chemicals that can weaken the structural integrity of acrylics leading to premature tarnishing of the fixtures. They also warn about using Scrubbing Bubbles on acrylics and marble (which usually has the surface sealed with an acrylic)

It affects plastics not brass.
 
Scrubbing Bubbles is fine. I've never have issues with them doing that. I've also replated many razors with cracks and the plating stabilizes the crack a bit more too.

So it's prolly a good idea to NOT clean it with Scrubbing Bubbles, huh?

My chemistry may be too weak for a definitive answer, but I think it is safe. Scrubbing bubbles contains ammonium chloride compounds, but exposed brass should only react with free ammonia.

That said, the directions on Scrubbing Bubbles recommend against using it on brass bathroom fixtures. According to this previous thread that is because it may damage the acrylic coating on those. But with exposed brass we do not have to worry about that.


That's good news!! I was sweating that one!! Cleaned it up with a bit of Scrubbing Bubbles yesterday.
And so replating will help stabilize those that cracked, that's great news!!
 
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