High Viscoelastic Polymers, ACRYSET™ VA Series Acrylic polymer, dispersed in water

Basic Information

The original design of polymers in the ACRYSETTM VA Series imparts superior vibration attenuation properties. The polymers possess stress relaxation properties due to control of the polymer’s dynamic viscoelasticity.
This characteristic is expected to impart superior properties for damping, soundproofing, shock absorbing, and thermal response, as well as binding capability and flowability.


This product can convert vibrational energy into thermal energy by controlling thermal motion of polymer chains in the glass transition temperature range.

〇Examples of utilization functions
 ・Vibration attenuation → damping properties, soundproofing properties, shock absorbing properties
 ・Flowability to deformation → binding capability and flowability
 ・Base material permeation using heat melting → thermal motion

Typical Properties

AppearanceMilky white liquid
Solid content50 ~ 60%
SolventWater only
pH7 ~ 9
Minimum film-forming temperature(℃)0 ~ 40℃
Viscosity (25℃)<2000mPa・s
Particle size100 ~ 300nm
Polymer typeAcrylic type

Features and Properties

・High loss tangent(tanδ):2
・Freedom of polymer design : enables polymer design according to usage temperature
・High dispersibility : easy dispersion of additives (pigments, etc.)
           Superior formulation flexibility, productivity, quality stability, and workability
・VOC-free : supplied as a water-based polymer

Manifests stress relaxation responsive to various temperature ranges and frequencies by adjusting the particle structure, molecular weight and its hydrophilicity/hydrophobicity of the acrylic emulsion  while maintaining low viscosity

Damping properties

Damping propertiesGeneral acrylic polymerACRYSETTM VA Series
For low temperatureFor medium temperatureFor high temperature
Tg [℃]3763049

Examples of Applications

Can be used as damping paint by adding pigments and alkali soluble thickeners.
Due to its superior pigment dispersibility and easy adjustment of paint viscosity derived from the dynamic viscoelasticity of the polymer, it can be applied to any location to achieve high-level damping properties. 

Damping property meter  manufactured by Brüel & Kjær (cantilever beam method)