CAUTION Some of these materials are toxic in their dry unfired or fired state. You should always use a dust mask when working with these materials. We have an inexpensive, Toxic Dust Mask available. Also, Material Safety Data Sheets are available, for any material you've purchased from us. These materials have always been potentially harmful, so let’s get serious about safe handling.

SHIPPING SURCHARGE: Recent fuel increases and driver shortages have more than doubled the inbound freight cost from California. We are hopeful that this will be temporary. Rather than adjust all prices to compensate, we will be adding .20/# to the price shown below: 1# = .20, 5# = $1, 10# = $2, 25# = $5, etc. You will see this as an additional charge on your final invoice, though it will not be calculated through the website. As soon as freight costs are lowered, the surcharge will be eliminated. When the material costs are equal to or less than the amount of the shipping and surcharge, you'll need to to confirm that you still want your order shipped.

Orders may be placed online or via email to be picked up in-store. These must be placed 24 hours in advance of pick-up and can be picked up after 1 pm on the following business day. Please see our shipping policy on our store info page.