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Additives for admixtures / concrete

Concrete additives

In the construction industry our additives are used to reduce the cost of concrete construction, to optimize concrete properties and to ensure reliable and consistent quality of concrete.

With our long-standing expertise in surfactant technology, we developed tailor-made solutions for the admixture market.

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Relevant products

Air entrainers

Air entrainment is the intentional creation of small air pockets in concrete by the addition of an air entraining agent to the mix. The primary purpose of air entrainment is to increase the durability of the hardened concrete, especially in climates subject to freeze-thaw as the air pockets relieve internal pressure on the concrete by providing tiny chambers for freezing water to expand into. Additionally, workability of the concrete is increased.

Based on our experience in surfactant chemistry, we offer a range of air entraining agents under the brand names Hostapur® and, Genapol®, and Zeliquid.

Our Hostapur® OSB is used as an air entraining agent for mortars, plasters and grouts based on cement, gypsum or lime. It is rapidly soluble, enables faster wetting of solid particles in the dry admixture and the build-up of micro foam in a short time. The performance of this air entrainer is superior to traditional sodium lauryl sulfates, as it is not sensitive to calcium salts, non-hygroscopic and twice as efficient in producing controllable, strong and stable micro foam.

Solid air entraining agents

  • Hostapur OSB
    Low tendency to build up viscosity therefore suitable for use in I&I cleaners . Primary surfactant for hand dishwashing liquids.

Liquid air entraining agents

  • Emulsogen EPA 1954
    Emulsogen EPA 1954 is used as anionic emulsifier for the emulsion polymerization of vinyl acetate dispersions, styrene-butadiene latex and E-PVC.
  • Hostapur AE
    Blend of anionic and non-ionic surfactants
  • Hostapur OS liq.
    High foaming primary surfactant for hand dishwashing liquids. Low stickiness to textile fibres; especially for carpet and upholstery cleaners . Low tendency to build up viscosity therefore suitable for use in I&I cleaners .
  • Zeliquid LP 2
    Zeliquid LP 2 is compatible with other anionic and nonionic surfactants and resistant to water hardness.
  • Zeliquid LPN
    Solution of anionic and nonionic surface active agents in water

Wetting agents

Wetting agents are used to improve the wetting of fine particles in the dry plaster or mortar. Thus, they improve workability, penetration and binding strength of concrete to surfaces and lead to a higher performance and time savings. Their delivery form as (fine) powder assures rapid and homogeneous uptake and distribution in water. All wetting agents from Clariant are nonylphenolethoxylate free (NPEO free).

Solid wetting agents

  • Genapol PF 40
    Genapol PF 40 is used as nonionic emulsifier for the emulsion polymerization of monomers like acrylates, styrene-acrylates and vinyl acetate.
  • Genapol PF 80 FP
    Genapol PF 80 FP is a EO/PO block polymer. It enhances the workability, penetration and binding power of concretes/mortars to surfaces.
  • Genapol® T 250 p
    Solid nonionic surfactant, suitable for coating of enzymes, bleach activators and extrusion products. Excellent binder for toilet rim blocks and gels.
  • Genapol T 800 P
    As a non-ionic surface active substance Genapol T 800 p can be combined with other non-ionic, anionic and cationic products.

Liquid wetting agents

  • Emulsogen LCN 118
    Emulsogen LCN 118 is used as a nonionic emulsifier for emulsion polymerization improving the shear, temperature and electrolyte stability of polymer dispersions. The recommended usage is 2% active based on monomers.In waterborne and solvent-borne lacquers (low PVC), Emulsogen LCN 118 can be used as a compatibilizer to improve tinting strength and to reduce rub-out, water absorption, and haze effects. Dosage recommendation (supply form) in waterborne acrylic lacquers is 1.3-1.9% and in solvent-borne alkyd lacquers 0.33-0.66%. When used during the premixing phase in the production of waterborne emulsion paints (high PVC), Emulsogen LCN 118 also acts as a processing aid and helps to reduce the grinding time by faster deagglomeration of TiO2 and fillers. This is especially of interest in areas of hard water. The general dosage recommendation (supply form) for this purpose is 0.3%.
  • Sapogenat T 139
    Sapogenat ® T 139 is a nonionic surfactant for the chemical industry. This clear, yellowish liquid is composed of tributyphenol ethoxylate.


Defoamers destabilize any foam which builds up during the mixing process and reduce the air content.

Clariant supplies a selected line of high-quality defoamers for the construction industry under the name Prevol™. They are mineral oil-free and based on EO/PO block polymers. 

Upon request, the EO/PO ratio can be tailored to your needs.


Since admixtures are normally provided as water-based solutions, the preservation of these formulations is mandatory.

Clariant provides a broad range of different antimicrobial products to the Asian and Latin American market under the brand name Nipacide®.

  • Nipacide CFX 4
    Nipacide CFX 4 is an in-can biocide based on formaldehyde + chloromethyl and methylisothiazolinone. Nipacide CFX 4 is a water-based low toxicity isothiazolinone/ formaldehyde donor biocide, developed for the complete in-can and head space protection of water-based products. Nipacide CFX 4 is effective against a wide range of microorganisms including gram positive and gram negative bacteria, yeast and fungi. When products are prone to surface contamination by fungi and head space protection is required, Nipacide CFX 4 should be the biocide of choice. Nipacide CFX 4 is effective against a wide range of spoilage organisms and pH stable up to pH 9 and temperature stable up to 40 °C.
  • Nipacide CI 15
    Nipacide CI 15 is an in-can biocide based on CMIT/MIT. Nipacide CI 15 is a water based biocide, developed for the complete in-can protection of water based products including water based / Latex/PVA adhesives, PVA / acrylic polymer emulsions, water based decorative paints, printing inks, metal working fluids and construction admixtures. Nipacide CI is effective against a wide range of microorganisms including gram positive and gram negative bacteria, yeast and fungi. Thermal and pH stability for Nipacide CI is a critical consideration and it should not be used for products with pH >8.5 or production temperatures of >40 °C.
  • Nipacide TBX
    Nipacide TBX is an in-can biocide based on benzisothiazolinone + triazine. Nipacide TBX is a low toxicity biocide intended for industrial use only as a microbiostat preservative for aqueous compositions such as adhesives or tackifiers, polymer emulsions and lattices, natural and synthetic thickeners, aqueous slurries, construction compounds, metal working fluids and paints & coatings. Nipacide TBX combines the outstanding stability of Nipacide BIT based biocides with the rapid kill of Nipacide BK.

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