CS-Carbomer U21


INCI Name: Acrylates/C10-30 Alkyl Acrylate Crosspolymer (Synonym: Ultrez 21)


CS-Carbomer U21 is a hydrophobically modified cross-linked acrylate copolymer, provides high viscosity with short flow properties. It self-wets and disperses quickly in minutes, which remarkably meets formulators’ ease-use need. It delivers excellent thickening efficiency at a wide pH range which makes it a good choice for wide applications. It is ideally suited for use in formulations containing higher levels of oils, botanical ingredients, or humectants like Sodium PCA.

CS-Carbomer U21 also provides good electrolyte tolerance and unique sensory benefits in formulations. Even at high concentration, CS-Carbomer U21 maintains excellent clarity.

Features and Benefits

  • Rapid wetting properties
  • Improved electrolyte tolerance
  • Excellent performance of stabilizing and suspending insoluble ingredients
  • Excellent clarity
  • High thickening efficiency
Recommended Applications
  • Hair styling gels
  • Hand, body and face lotions
  • Hand sanitizers
  • Moisturizing gels
  • Sunscreen lotions
  • Shampoo
Formula Guidelines
  • Typical use 0.2 to 1.0 wt%
  • Sprinkle polymer on surface of water and allow to self- wet
  • Agitation must be processed gently
  • Pre- or post-neutralization is workable, depending on application

Standard Packing: 20kg cardboard box with PE lining

Storage: Keep tightly closed in cool, dry and well-ventilated area

Shelf Life: 24 months

Suitable pH: 7.3-7.8


Wetting Time/ Minutes0.5% Dispersion≤8

Viscosity/mPa.s (20 rpm at
25oC, Neutralized Solution)

0.5% Water solution(at pH
Solution Clarity /% (420 nm
0.5% Water solution
(solution pH 5.8 - 6.3)
Residual Solvent /% (Ethyl
Acetate& Cyclohexane)
Bulk Density/(g/100 mL)--25.0~35.0
Loss on drying /%--≤2.0
Heavy metal
Pb+As+Hg+Sb /ppm

Transparency comparison:


The way to use "CS-Carbomer U21" properly



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Email: info@chemsources.co.th

Call: +662-274-7316-8 ext 21

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