Suggestion for Opaque ABS material
Suggestion for Opaque ABS material
(OP)
Dear Forum Members,
We are developing a product that requires no light to enter into an optical cavity except for the designated openings. Unfortunately, we started the project without any plastics knowledge and let the plastics manufacturer choose the material. The color we specified is white and it does need to be white. They chose PA-757. The thickness of our design at it's thinnest point is 1mm. Needless to say, we are getting a lot of "light leakage" into our cavity causing a number of measurement problems. Is there an opaque ABS material that I could use that would help us? My current test is to take my cell phone (Samsung Galaxy Note II), turn on it's light, and see if I get light through the plastic. With PA-757, I get loads!
Regards,
Paresh
We are developing a product that requires no light to enter into an optical cavity except for the designated openings. Unfortunately, we started the project without any plastics knowledge and let the plastics manufacturer choose the material. The color we specified is white and it does need to be white. They chose PA-757. The thickness of our design at it's thinnest point is 1mm. Needless to say, we are getting a lot of "light leakage" into our cavity causing a number of measurement problems. Is there an opaque ABS material that I could use that would help us? My current test is to take my cell phone (Samsung Galaxy Note II), turn on it's light, and see if I get light through the plastic. With PA-757, I get loads!
Regards,
Paresh






RE: Suggestion for Opaque ABS material
If the interior has to be white, paint the outside black then white.
Mike Halloran
Pembroke Pines, FL, USA
RE: Suggestion for Opaque ABS material
Dan - Owner
http://www.Hi-TecDesigns.com
RE: Suggestion for Opaque ABS material
Thanks for the info. We already tried the white and black/white paint combo but that didn't work too well. We tried a metallic based paint which worked much better. Still the issue is on flat surfaces, it works great but the corners...not so much.
We are trying to minimally block 400-700nm wavelengths.
Regards,
Paresh
RE: Suggestion for Opaque ABS material
Chris DeArmitt - PhD FRSC
Plastics & Materials Consulting
www.phantomplastics.com
Plastic Training Seminars
www.plastictraining.com
RE: Suggestion for Opaque ABS material
Stand by...
H
www.tynevalleyplastics.co.uk
It's ok to soar like an eagle, but weasels don't get sucked into jet engines.
RE: Suggestion for Opaque ABS material
Regards,
Paresh
RE: Suggestion for Opaque ABS material
H
www.tynevalleyplastics.co.uk
It's ok to soar like an eagle, but weasels don't get sucked into jet engines.
RE: Suggestion for Opaque ABS material
RE: Suggestion for Opaque ABS material
The plastics company I am working with did offer one solution...and that is plating the inside with the same material used to make auto door handles look like chrome (maybe it is chrome?), and then painting white. Anyway, I'll also explore this option.
Regards,
Paresh
RE: Suggestion for Opaque ABS material