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Ted Mooney, P.E. RET

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Electroless plating on plastic

Encountered adhesion problem when electroless plating on PEI material with 10% glass filler, for EMI shielding purpose. Anyone can suggest a process sequence?

Ken Soh
- Singapore

Hi, Ken,

People are often happy to give you a good process sequence in exchange for you telling them a poor process sequence, but less willing to give you a good process sequence in exchange for nothing. Please tell us what your pretreatment sequence is, and maybe people can tell you what is wrong with it. The ASEP book shown in the banner at the upper right of the page is excellent although hard to find. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

You need some "tooth". Try sandblasting or chrome-sulfuric etch.

Neil Bell
Albuquerque, New Mexico

Dear sir,

What is the process you made for ETCHING? adhesion depends mainly on etching

Best regards,

RAAFAT ALBENDARY
plating on plastics - Cairo, Egypt

Dear sir,

You may use solvent swell and etching for make micro roughness surface. Or can you use acid to etch glass filler away?

PROPRIETARY PROCESS IS THE KEY.

Best regard,

Prasarn Hutpattanasilp
- Samutsakorn Center, Thailand

You should turn to one of the big suppliers, only they can offer you proprietary products that can give good adhesion of EMI shielding on your complicated substrate. There are no free lunches, you will have to pay for the big investment that the suppliers did in R&D.

Sara Michaeli
Tel-Aviv-Yafo, Israel

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