William Moody on sun 10 jun 01
Thanks to all who wrote back on the NC-4 feldspar thing. I am going to =
give F-4 feldspar a shot and expect the best.=20
Steve Mills on tue 12 jun 01
could someone please email me (privately) an analysis of F4 Feldspar; we
need to find a UK equivalent for a customer.
TIA
Steve Mills
BPS
Bath
UK
In message , William Moody writes
>Thanks to all who wrote back on the NC-4 feldspar thing. I am going to =
>give F-4 feldspar a shot and expect the best.=20
--
Steve Mills
Bath
UK
scott lykens on tue 12 jun 01
Steve,,,
SiO2 : 68.6
AL2O3: 18.7
Na2O : 6.7
K2O : 4.5
CaO : 1.5
Fe2O3: .o5
MgO : Trace
LOI: <.2
they gave us this wiht a 22 ton purchase so i think its accurate. never
seen on ewith an embossed seal before,
good luck.
ooh, here we go, DAMREC, France
Clays Minerals Ltd. Thailand mnaybe a UK company
Anjana Minerals Pvt. Ltd., India
Eggerding & Co. Group, Netherlands
Gebr. Dorfner Gmbh & Co., Sales De4pt. , Germany
James Kent (Ceramic Materials) Ltd., UK (john Longmore)
these are feldspar suppliers from ceramic source 99 volume 14
heres unimins # 1800 243 9004 258 elm st
new canaan , Ct 06840 they make f-4
770-392-8660 is the feldspar corp. ask for sales dept. those guys are
generally also technically astute enough to pass this out, and recomend a
sister company,
there, a whole mouth ful, hope that helps.
sct
does iimerys have feldspars, i would hunch they do, they got a website, i
did a search came right up.
>
>could someone please email me (privately) an analysis of F4 Feldspar; we
>need to find a UK equivalent for a customer.
>
>TIA
>
>Steve Mills
>BPS
>Bath
>UK
>
>
>In message , William Moody writes
> >Thanks to all who wrote back on the NC-4 feldspar thing. I am going to =
> >give F-4 feldspar a shot and expect the best.=20
>
oh, nc 4 is suppose to be interchangable with f-4 same materiasl, i imagine
less iron. maybe a cleaner process
sct
>--
>Steve Mills
>Bath
>UK
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
_________________________________________________________________
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Ababi on tue 12 jun 01
This is from magic of fire, of Tony Hansen:
F-4 FELDSPAR
Description: SODIUM FELDSPAR
Date: 09/05/97
Supplier: THE FELDSPAR CORP.
Cost: 28.94 per 50BG
Raw Weight: 516.49
Family: 4-Feldspar
ANALYSIS & UNITY FORMULA
CaO....... 1.70% [ 0.16]
K2O....... 4.80% [ 0.26]
MgO....... 0.05% [ 0.01]
Na2O...... 6.90% [ 0.57]
Al2O3..... 19.60% 0.99
SiO2...... 66.80% 5.74
Fe2O3..... 0.04% 0.00
LOI....... 0.20%
F-4 FELDSPAR Notes
Shipped from Spruce Pine, North Carolina.
Particle sizes:
+100 mesh: trace
+140: .1
+170: .1
+200: .2
+325: 3.8
This material is prized as a porcelain ingredient because
of its low iron content. It is used in casting and throw-ing
porcelains of all types. At cone 6 for example, it is
possible to make a vitreous body using 50-60%. However to
get enough plasticity in such bodies, it is necessary to
use ball clay or bentonite which can darken the color. If
high plasticity is not essential, Macaloid and plastic
kaolins can be used. Another similar material is Nepheline
Syenite.
F-4 FELDSPAR Hazards
Copied with his permission
Ababi
----- Original Message -----
From: "Steve Mills"
To:
Sent: Tuesday, June 12, 2001 12:04 PM
Subject: Re: NC-4 Thanks
> could someone please email me (privately) an analysis of F4 Feldspar; we
> need to find a UK equivalent for a customer.
>
> TIA
>
> Steve Mills
> BPS
> Bath
> UK
>
>
> In message , William Moody writes
> >Thanks to all who wrote back on the NC-4 feldspar thing. I am going to =
> >give F-4 feldspar a shot and expect the best.=20
>
> --
> Steve Mills
> Bath
> UK
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>
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