Wendt Pottery Helmer Page 2021
1-208-746-3724 email wendtpot@gmail.com
(changed for easier access when I am traveling)
Now you can order mixed clay only when you need it for $18.50 + $15.50 shipping (total cost $34.00/box delivered) The boxes are shipped priority mail so now they are fully insured at no extra cost. That means if a box is lost or damaged, it will be replaced. In all the years I have shipped this way, only two boxes were ever lost.
Easy to throw and strong. Large pots can be made with Helmer in place of ball clay. Mixed , deaired cone 10-12 porcelain is currently available at my studio in Lewiston for $18.50 for 257 cubic inch pugs (two of these 5.5″ x 5.5″ x 8.5″ pugs fit in the standard medium flat rate box and weigh approximately 36 LBS. They are sold by volume, not weight). This also yields a useful fact in that the weight of the pugged and deaired clay is 0.0739 lbs per cubic inch which makes it easy to figure the amount of clay needed for some projects like tile or plates of known thickness and diameter.
My mixing train is all stainless steel and is used only for this clay body so there is no chance of contamination from a low fire clay or grit from a stoneware. The airfloat used to make the body comes from the dust collector on our roll mill and is screened to remove light weight contaminants like feathers and leaves prior to mixing.
A new service offers direct mail shipment anywhere in the 48 states, Alaska or Hawaii of 514 cubic inches of deaired Helmer based porcelain for $31.65 per box (yes, that’s the total price…($18.00 for the clay plus $13.65 for insured shipping ). Be aware: IF THE COST OF SHIPPING GOES UP, THAT ADDED COST WILL BE REFLECTED IN THE DELIVERED PRICE EVEN IF I HAVE NOT UPDATED THE PRICING ON THIS WEB SITE! This is a true Helmer Kaolin based clay body good for oxidation, reduction and especially for wood fire since it flashes the characteristic orange. I have also fired this body to cone 11 and even on occasion, 12. For long duration firings, it would be a good idea to test a few pieces prior to committing to full scale use.
email your order to mwendt@wendtpottery.com place cly1 order in the subject line to bypass the spam filter.
Helmer Kaolin (a white sedimentary clay replacement for Avery in pottery) Free samples (1000 g) are supplied upon receipt of the cost of shipping only, limit one request per address. Additional amounts now available for $20.00 for 20 lbs of 10 mesh dry Helmer shipped anywhere in the 48 states, Alaska or Hawaii.
1.Chemical Analysis ( XRF by ALS CHEMEX http://www.alschemex.com)
SiO2 Al2O3 Fe2O3 CaO MgO K2O Na2O TiO2 LOI (loss on ignition) Total
47 36 1.3 0.48 0.26 0.53 0.08 1.13 13.22 100.00
2. Typical Screen Analysis* Tyler US standard screens.
H30 Screen mesh sizes 20 80 150 pan total
range of size +20 -20 + 80 -80 + 150 -150
fraction % 0.5% 17% 28% 54.5% 100%
Air Float Screen mesh 140 200 400 pan total
range of size +140 -140 + 200 -200 + 400 -400
fraction % 1.31% 0.02% 0.22% 98.45% 100%
Airfloat screen data reflects actual O.S. remaining on screen after water washing (Tyler std. screens were used). The primary OS material is mica flakes since it tends to stay easily airborne in the dust collector air stream. Water wash testing reveals the other grinds shows that all the mesh sizes slake down to match these results if fully dispersed before screening.
helmerkaolin.com 