Seeding materialUp to Velocimeters - single point
Seeding materialPosted by Atle Lohrmann at June 12. 2003
Nortek provides seeding material as a service to our customers but we are not organized to deliver the material to other users. For people using third party instruments we suggest contacting our representatives for possible availability of small quantities or to contact the source directly.
The manufacturer of the seeding material is Potters Industries and the 'Sphericel' particles are actually used as an additive to plastic construction materials. Minimum purchase quantity from Potters is 50lb.
Sphericel 110P8 Product info:
Composition: Borosilicate Glass
Density: 1.1 g/cc
Mean: 8-13 micron
50%: 9-11 micron
90%: 19-21 micron
Re: Seeding materialPosted by Ali at January 05. 2011
First of all, I wish you a happy new year!
This post about seeding material is relatively old. I am not sure if it is already valid. In fact, I use Nortek Vectrino. I need a pack with 45lb. Should I order through Nortek or.....?
I live in Italy.
Re: Seeding materialPosted by P.J. Rusello at January 05. 2011
I would recommend contacting your local Potters Industries distributor for this quantity. Nortek typically only ships a half liter bottle with the Vectrino and isn't equipped to supply such a large quantity unfortunately. It looks like there is a distributor in Rome:
Re: Seeding materialPosted by Ayal Anis at June 26. 2012
Re: Seeding materialPosted by P.J. Rusello at June 26. 2012
That's an interesting question. I'm sure someone out there has used Spherical in a saline environment and I haven't heard anyone say they've had problems with it.
The one thing I would be a little concerned with is the potential for flocculation of particles together due to the ionic strength of seawater. This should be pretty easy to check by mixing small amount of the particles with saltwater in a bottle, shaking, and seeing what happens.
I don't think this will be a huge issue, despite not being able to find any information on surface charge for these particles which would be what would cause them to floc. They're an industrial additive for making paints and other coating flow better and in plastic moldings, so I think they shouldn't stick together too much or they would be poor performers in the intended use.