New Carquest EP 20k Filter C&P

[EvoMan]

Here's a chart of the properties of various rubber compounds. You'll see that nitrile, especially HNBR, is superior in every way to silicone in both the physical and chemical properties that are important to an oil filter base gasket. Oh, yea, the HNBR is also more expensive than silicone.

An argument can be made that the wider temperature range of silicone would be better for the ADBV. On the other hand, we've seen silicon ADBVs, with its poor physical properties, damaged by the inlet holes.

https://mykin.com/rubber-properties

Ed

I see lots of numbers on that rubber chart but no key as to what those numbers mean.

 

[ZeeOSix]

I see lots of numbers on that rubber chart but no key as to what those numbers mean.

Key is at the bottom. "1" is the best rating.

 

[edhackett]

I see lots of numbers on that rubber chart but no key as to what those numbers mean.

Scroll to the bottom of the chart. The key is the last line.
1: Excellent
2: Good
3: Fair
4: Poor

Ed

 

[EvoMan]

Got it. Thanks.

 

[4WD]

Many ADBV’s - and seals on the motor - are AEM:

https://www.celanese.com/products/vamac-ethylene-acrylic-elastomers

 

[Glenda W.]

Waiting for a call back on efficiency. PG techline doesn’t have info so he’s getting in touch with engineering.

 

[Mewbs]

PG is killing it. Good stuff right here.

 

[Johnny248]

I like the shiny end caps can't wait to see some ratings.