kydex vs frn

Kydex- KYDEX® sheet is an acrylic-polyvinyl chloride alloy produced by KYDEX, LLC. Engineered for thermoforming fabrication, KYDEX® sheet, combines the advantageous properties of both the acrylic and the polyvinyl chloride components. From acrylic, it obtains superior rigidity and formability; from PVC, outstanding toughness, chemical resistance and good interior finish ratings.

The combination of strength properties of KYDEX® sheet places it at the highest level among thermoforming materials. Its modulus of elasticity in flexure is 330,000 psi - 50% higher than many other sheets.

Parts formed from KYDEX® sheet will be much more rigid and will deform less when loaded. This is of particular importance in deep formed parts with thin wall sections. KYDEX® sheet offers rigidity along with a high degree of toughness and resilience.

KYDEX® sheet is a relatively hard thermoplastic with a hardness of 90 on the Rockwell R scale. In service, this excellent abrasion resistance is further enhanced by the grained surface of the Kydex sheets.

KYDEX® sheet has a UL classification of 94 V-0


FRN-Fiberglass Reinforced Nylon (FRN)
A nylon polymer mixed with glass fiber that is then injected into a mold for making lightweight knife handles.

Kydex is molded/formed into shape from a sheet, where as FRN is a nylon impregnated with glass fibers and is injected into a mold in a liquid state.
 
thank you spydeman for a clear & cohesive explanation of these products. i had heard that zytel was glass impregnated nylon but you explained in a way that even a redneck like myself can understand . thanks again.
 
Is it 90 on the rockwell scale or does it have a durameter of 90?
I thought diamonds where high 90 on the rockwell.
could be wrong
 
There are several Rockwell scales.
Diamonds are up about 90 on the Rockwell C scale or 90 RHC
Kydex is 90 on the Rockwell R scale or 90 RHR.

The R scale is used for rubber.
 
knarfeng said:
There are several Rockwell scales.
Diamonds are up about 90 on the Rockwell C scale or 90 RHC
Kydex is 90 on the Rockwell R scale or 90 RHR.

The R scale is used for rubber.
Click to expand...

That's the first time I've seen it put like that. I've always known it to be HRC. We use RHC for Relativistic Heat Conduction. Maybe it's too early still and I'm not seeing it straight. http://www.itlinc.com/rockwell.html
 
You must log in or register to reply here.
Back
Top