Letter 20910

SPE / SPI Finishes [Illinois] 

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Where can I get the steel finish for SPE / SPI standards?

We need to know what a SPE / SPI #5 finish is. We have looked at DME [Ed. note: Detroit Mold Engineering] Mold Finish Kit, but it does not shows any # 5 finish. They only show A 1-3, B 1-3, C 1-3 & D 1-3 finishes

Leandro V [name deleted for privacy]
plastics - Bensenville, IL

I too am looking for this info. I have Googled all over the place but can not find this info. We have several drawings of parts that call out finishes like SPE #4 MIMIMUM or SPE-SPI #5 MINIMUM. I have found the SPE-SPI A-1 through D-3 finishing spec but not this other scale. Surely someone out there knows what it is? I have been to the Society of Plastics Engineers and the Society of the Plastics Industry but no luck.

David G [name deleted for privacy]
- Greenville, SC, USA

THE OLD WAY TO DOCUMENT SPE-SPI FINISH WAS #1-#5. SPI HAS CHANGED THIS TO A1, A2 ETC.
SPI HAS A MOLDED PLAQUE WITH SAMPLES OF THESE NEW FINISHES AND A PAPER COMPARING THE OLD STANDARD WITH THE NEW.

L. ROCKWELL
- PHX. AZ

Thanks, L. The current place to get the "Mold Finish Guide" is at http://store.plasticsindustry.org. Look for item AR-106.

I don't know the order number for the cross referencing paper for the old vs. new system, but it may be AR-101. Good luck.

Regards,

Ted Mooney, P.E.  finishing.com Brick, NJ

If there any body know where can I download a free copy of the SPI-SPE surface finish standard for reference. Or anybody know what is meaning of "Gloss: SPI-SPE#2 finish" and "Matte: SPI-SPE#3 finish with liquid hone." Please help, thanks.

Thomas C [name deleted for privacy]
OEM manufacturer - Hong Kong, China

Sorry, Thomas, these are copyrighted specs for sale, not for free. Regards,

Ted Mooney, P.E. 
finishing.com
Brick, NJ

The listing correlate as follows:-
#1 = A-1
#2 = A-3
#3 = B-3
#4 = C-3
#5 = D-2
#6 = D-3
The info is on page N-112 of the current DME catalog. There is also a chart with further info.

Edward [name deleted for privacy]
- Australia

I want to buy SPI-SPE mold finishing guide, can I buy it anywhere in Hong Kong or China?

Janet Y [name deleted for privacy]
- Hong Kong

I want to answer or follow-up on this subject publicly (in non-commercial fashion).

 

I want to post a new question or inquiry of my own on a different subject.

 

This letter is within a monitored forum, very much "alive" here in 2008. If you spot any broken links or obsolete info, please advise!