Click here to view cart
Questions? Click here to contact us!
Portland       Follow Us!      Eugene

Serving 3-D & clay artists in the Pacific Northwest and beyond since 1965
Prices are subject to change without notice. Current prices at our stores override all previously published prices.
Shipping charges shown in our shopping cart are only estimates. Actual shipping charges may vary when we ship your order.

Spectrum Underglaze Base ^06 - ^6


Click items at right to go directly to these glaze pages ...

Spectrum's 1050 Underglaze Base is formulated as a base media for preparing your own underglaze colors similar to the 500 series Underglazes. This base has some frit in it, which acts as a flux to help the stain be a compatible fit with either greenware or bisque. It also has various additives which keep the frit and stain suspended and makes it brush on smooth and easy. It is lead free, non-toxic, and dinnerware safe when covered by a dinnerware safe clear glaze. In order to achieve an underglaze of a strength similar to the 500 series Underglazes, it is recommended that you mix 1 part of dry powder ceramic stain to 2 parts wet Underglaze Base by weight. For example, if you put half a pint (8oz or 228gm) of 1050 Underglaze Base in a container, you should mix 114gms of stain with the base. This is only a GENERAL guideline as the strengths of differnet color stains vary and you should test your colors, particularly the first time you mix them to determine the correct strength for your application needs. Be sure to test if firing to Cone 10! This will flux much more at this temperature.


Spectrum Underglaze Base

Underglaze Base

can be used on greenware and bisque


All contents related to Georgies' products copyright 2023. All rights reserved.
Georgies Ceramic & Clay Co. 756 NE Lombard Portland OR 97211 503.283.1353
Georgies of Eugene 1471 Railroad Blvd #9 Eugene OR 97402 541.338.7654
Fax numbers: Portland 503.283.1387 Eugene 541.338.7565
Portland Store Hours: Monday-Friday 9:00a-5:00p Pacific time CLOSED Saturday & Sunday
Eugene Store Hours: Tuesday-Friday 10:00a-5:00p Saturday 10:00a-4:00p Pacific time CLOSED Sunday & Monday

Back to TOP