Ultra-tex is very similar in use to xanthan gum. It can thicken liquids at most temperatures and often has a better mouthfeel than xanthan gum does at higher concentrations.
There are several different kinds of Ultra-Tex that are modified in different ways. The most popular are Ultra-Tex 4 and Ultra-Tex 8.
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Usually a percent of 1.0-4.0% ultra-tex is used for basic thickening and a 5.0-8.0% for major thickening.