Rheology Modifiers

Thixotropes & Rheology Modifiers

Rheology modifiers in compounds act as thickeners, and are used to control the viscosity of those compounded mixtures. Mixtures that utilize rheology modifiers often undergo shear stress or deformation, and rheology additives act against the deformation brought about by this stress in order to maintain the integrity and composition of the compound.
Rheology Applications

Rheology modifiers are often applied to control the viscosity of adhesives and sealants, industrial coatings and plastisols. These compounding chemicals prevent sag during the application and curing of such products, and they can also be used to prevent pigment sedimentation in inks and coatings.

Rheology modifiers can be applied as thixotropes for mechanical, PVC, urethane and modified silicone solutions. Their thixotropic properties can be achieved through chemical branching, water absorption or mechanical thixotropy.

Rheology Additive Suppliers

At H.M. Royal, we’re more than just material people. We’re a group of dedicated and enthusiastic individuals with a common passion—making our customers successful through delivering consultation, innovation and cost-effective solutions to their compounding needs.

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A sampling of our rheology modifiers includes:

Types of Rheology Modifiers

H.M. Royal Suppliers  & Product Lines

Common Applications

Precipitated Calcium Carbonate

Shiraishi: Viscolite, Hakuenka, Vigot & Viscoexcel

A specialty thixotrope for PVC, urethane and modified silicone solutions.

Kevlar Pulp Fibers

DuPont: Kevlar

Kevlar pulp fibers are shear stable mechanical thixotropes.

Kevlar Pulp Fibers-Opened

DuPont: Kevlar

Opened Kevlar pulp fibers allow for easier dispersion in low shear systems.

Fumed Silica

Tokuyama: Reolosil

Fumed silica is used as a thixotrope via chemical branching.

Bentonite Clay

H.M. Royal, Inc. Bentonite Clay

Bentonite clay is used as a thixotrope via water absorption and swelling.

Aramid Fiber Blend

Royal Brand: Roy-Tuff 9021 & Roy-Tuff 8016

Aramid blend fibers are highly dispersible powders and are used to reinforce compounds and improve abrasion.

To request technical data sheets or more information for any of our products, contact us today!

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