Making a kitchen knife

FOG2

FOG2

Joined
Nov 1, 2007
Messages
2,412
Im making one and wondering what adhesive to use for the scales and what i need to do to the scales as far as a finish that would be dishwasher safe.

Im hoping to use some Rosewood or Cocobola i have for the scales.

Does anyone think those are bad choices ?

(Any and all advise appreciated) Thanks,Bryce
 
dishwasher safe is the bad plan

thats really bad not jsut for the handle but also the blade

if i had to make one that takes this much abuse it would get micarta or G10

maybe with a bit of care a stabilized wood would work
 
I agree if making one that goes in he dishwasher use stainless steel and G-10 or Micarta. wood and water not a good combination. Steel in general with water not a good combination.
 
Remind the end user that a quality chef's knife is not to be soaked in a sink, stuck in a dishwasher or allowed to bang against other knives. I always tell people that buy my chef's knives that they need to be cleaned and dried when they're finished using them. I remind them to wash and dry after cutting something acidic. Most of my chef's knives customers are chefs so they know.
 
I give a printed care and use sheet with my professional cutlery. It says, "Never put in dishwasher. After use, wash, dry, and store safely."

Rosewood and cocobola won't need any coating. They will sand and polish lovely with their natural oils.
Stacy
 
I don't believe any knife is truly "dishwasher safe"

Dishwasher powder is caustic and runs using very hot water - it will lyse any oils in natural timber and ultmately break down even micarta and polypropylene. Hot water can also affect the steel - a good knife should only be wiped clean or washed in warm water, dried and put away immediately. Of course if you don't care about your knives..........
 
I ask customers to put my knives in the dishwasher with their grandmothers fine china, that way they won't be real dissapointed by the result. Sand, soap, hot water... not good for anything
 
Thanks evryone for your input.I got the message loud an clear.

DONT PUT IT IN THE DISHWASHER.

Im using CPM154 so i think i have a good steel for the job.So NO finish
is needed for my Rosewood or Cocobola thats cool.

One question no one had an opinion on tho.

What would you recomend for the SCALE ADHESIVE ? Im thinking probably a marine type product.

Thanks,Bryce
 
I use Loctite E-120HP, which came out very well in the glue wars.
This is a high strength, slow cure industrial epoxy, not hardware store
Loctite.
 
I read somewhere just why knives should not be put in the dishwasher, and it's not just because of water, heat, and banging around. Even read the instructions where the manufacturer says not to rinse the dishes before puttiing in the machine? That's because the process uses food particles as part of the cleaning process. In addition to water pressure, the food particles blast off the sticky stuff. Those food particles will dull a knife at that pressure. So I read. Does that make sense?
 
I use the dishwasher's power as a degreaser. As Antonio said it is caustic because it is an alkaloid the opposite of acid. Most common automatic dish washing soaps have a Ph high enough to clean your drain with when added to hot water.
 
I recommend Loctite 325. I use this adhesive for my knife scales.

Here is some valueable information on Locktite 324, 325 and 326.
Speedbonder 324
High impact applications
Amber Color
Gap fill to 0.040”
Viscosity 17,000 (higher is thicker)
Shear 3,000
Temp range -65f to 300f
Cure speed fixture 5 min
Full – 24 hours
Activator 7075
Comments: good gap fill and temp range. Has a higher sheer rate than 325 but lower flexibility for thermal cycling. If you aren’t running your knife through constant temperature changes, this is the better choice over 325.

Speedbonder 325
Severe environment
Transparent dark brown color
Gap fill 0.040”
Viscosity 20,000 (higher is thicker)
Shear 2,200
Temp range -65f to 300f
Cure Speed fixture 5 min
Full 24 hours
Activator 7075
Comments: This is used to bond metals that move slightly due to temperature changes. It takes thermal cycles very well since it is slightly flexible. It is slightly thicker than 324 so it is easier to apply. The color of epoxy seems to bother people. If you have a large glue seam you can see, you should work on closer tolerances more and worry about adhesive color less.

Speedbonder 326
Fast fixturing
Transparent dark brown color
Gap fill 0.020”
Viscosity 18,000 (higher is thicker)
Shear 3,500
Temp range -65f to 250f
Cure Speed fixture 1 min
Full 24 hours
Activator 7075
Comments: Great shear strength. This stuff is for speed. It sets in under a minute. If you are into fast production times, this is the one for you. It is used in the jewelry trade to hold expensive stones so it’s great adhesive. You just have to move fast.
 
You can use a penetrating oil on cocobolo and other rosewoods for looks, if you would like. I like the look of tung oil on rosewoods.

It would be nice to know what type of rosewood you will be using. There are dozens of true rosewood (Dalbergia) species, including cocobolo, and they vary widely in durability and appearance.
 
Redrummd said:
I recommend Loctite 325. I use this adhesive for my knife scales.

Here is some valueable information on Locktite 324, 325 and 326.
Speedbonder 324
High impact applications
Amber Color
Gap fill to 0.040”
Viscosity 17,000 (higher is thicker)
Shear 3,000
Temp range -65f to 300f
Cure speed fixture 5 min
Full – 24 hours
Activator 7075
Comments: good gap fill and temp range. Has a higher sheer rate than 325 but lower flexibility for thermal cycling. If you aren’t running your knife through constant temperature changes, this is the better choice over 325.

Speedbonder 325
Severe environment
Transparent dark brown color
Gap fill 0.040”
Viscosity 20,000 (higher is thicker)
Shear 2,200
Temp range -65f to 300f
Cure Speed fixture 5 min
Full 24 hours
Activator 7075
Comments: This is used to bond metals that move slightly due to temperature changes. It takes thermal cycles very well since it is slightly flexible. It is slightly thicker than 324 so it is easier to apply. The color of epoxy seems to bother people. If you have a large glue seam you can see, you should work on closer tolerances more and worry about adhesive color less.

Speedbonder 326
Fast fixturing
Transparent dark brown color
Gap fill 0.020”
Viscosity 18,000 (higher is thicker)
Shear 3,500
Temp range -65f to 250f
Cure Speed fixture 1 min
Full 24 hours
Activator 7075
Comments: Great shear strength. This stuff is for speed. It sets in under a minute. If you are into fast production times, this is the one for you. It is used in the jewelry trade to hold expensive stones so it’s great adhesive. You just have to move fast.
Click to expand...

I use 324, but I'm now going with mechanical fasteners and considering thermal changes, so after reading this, I may try 325 next. Thanks.
 
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