Cost comparison - Pa66 30GF vs. PBT 30GF

[ryandias]

Can anyone give me a price comparison for the two materials? I see both are Medium ish prices, but is one more expensive in general?

 

[patprimmer]

Have you by any chance considered asking various raw materials suppliers to quote on each.

DuPont, BASF, DSM and Ticona spring to mind. I am sure there are many others in your region where ever that may be.

Oh and you need to take SG into account.

You probably should also consider cycle times and other processing costs if this is a real project and not just a purely academic question.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

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[Demon3]

Yes, as Pat says don't forget SG (specific gravity or density) as you need to consider price per liter, not price per unit weight.

The density is extra important for automotive applications as it translates to gas mileage.

To answer your question fully would require an analysis of historic pricing for both over a 5 year period or longer.

Chris DeArmitt PhD FRSC CChem

http://www.phantomplastics.com

Consultant to the plastics industry

 

[Demon3]

The latest information I have is that on a weight basis, PA6 is cheaper than PBT which is cheaper than PA 6,6. I expect the glass filled materials follow the same trend. You can find resin pricing online to check the latest trends.

Chris DeArmitt PhD FRSC CChem

http://www.phantomplastics.com

Consultant to the plastics industry