WHECHEM

Hydroxypropyl Methyl Cellulose (HPMC) MP Line

• Methoxy Content: 29%
• Hydroxypropyloxy Content: 10%

The wheCell HPMC-MP Line represents standard construction-grade Hydroxypropyl Methyl Cellulose products developed for cement-based dry-mix systems requiring balanced performance, reliable processing behavior, and robust formulation stability.
This line focuses on proven, application-oriented functionality and cost-efficient performance for conventional construction formulations, without targeting highly specialized or niche application profiles.

Products of the HPMC-MP Line are designed to provide consistent water retention, controlled rheology, and stable application behavior in conventional construction formulations such as tile adhesives, plasters, and repair mortars.

They are ideally suited for applications where dependable processing and cost-efficient performance are required.

Role in Cement-Based Formulations

HPMC-MP products act as multifunctional formulation components:

• Water retention agents ensuring uniform cement hydration
• Rheology modifiers controlling viscosity and flow behavior
• Processing stabilizers improving mixing, spreading, and finishing
• Open-time controllers for reliable installation under standard site conditions

They contribute to predictable handling, reduced formulation sensitivity, and stable performance in everyday construction environments.

Key Performance Focus Areas

• Balanced and reliable water retention
• Improved workability and application consistency
• Controlled open time for standard processing conditions
• Reduced risk of segregation and bleeding
• Broad compatibility with common cementitious formulations
• Cost-efficient performance for large-volume applications

Typical Fields of Use

• Cement-based tile adhesives
• Cement-based plasters and renders
• Skim coats and wall putties
• Cementitious repair mortars
• Standard dry-mix building materials

Positioning Within the wheCell Portfolio

The wheCell HPMC-MP Line constitutes the core Hydroxypropyl Methyl Cellulose product range within the wheCell platform. It represents the complete HPMC offering and is designed to cover standard construction requirements without further internal segmentation, while at the same time being suitable for selected industrial applications that require controlled rheology and stabilization performance.

This line is intended for customers who require:

• Consistent and reliable quality
• Predictable water retention and rheology control
• Stable application behavior under practical job-site conditions
• Economical and robust formulation design

The wheCell HPMC-MP Line is positioned as a universally applicable construction-grade solution for cement-based dry-mix systems, focusing on functionality, formulation stability, and broad usability rather than product differentiation through multiple internal performance tiers.

In addition to construction use, the same products are also suitable for industrial applications such as polymerization processes, suspension systems, and ceramic formulations, where they act as effective rheology modifiers, stabilizers, and protective colloids, supporting controlled particle dispersion, improved process stability, and consistent product quality.

WheCell Hydroxyethyl Cellulose – HE Line

Hydroxyethyl Cellulose products of the HE Line are developed for aqueous and cement-based systems that require efficient thickening, stable viscosity control, and high compatibility with mineral-based formulations.

Role in formulations
Products from the HE Line act as rheology modifiers and thickeners that enable precise viscosity adjustment and formulation stabilization. They support uniform dispersion of solid components, promote consistent flow behavior, and help maintain stable formulation properties throughout processing and application.

Key performance focus areas

• Reliable thickening performance
• Stable viscosity development
• Good dispersion behavior
• Consistent processing characteristics
• Compatibility with mineral-based systems

Typical fields of use

• Cement-based plasters
• Skim coats and wall putties
• Cementitious smoothing compounds
• Water-based construction formulations

Positioning within the portfolio

The HE Line represents a standard Hydroxyethyl Cellulose solution within the portfolio. It is positioned for applications that require reliable viscosity control and stable processing behavior without additional modification features.

WheCell Methyl Hydroxyethyl Cellulose (MHEC) – MH Line

Methyl Hydroxyethyl Cellulose products of the MH Line are designed for cement-based and gypsum-based dry-mix systems where reliable water retention, smooth workability, and stable consistency are required. They are particularly suited for mineral-rich and gypsum-containing formulations that demand uniform application behavior and high surface quality.

Role in cement-based formulations
Products from the MH Line function as water retention agents and rheology modifiers. They support uniform binder hydration, improve material cohesion, and provide smooth and controlled application behavior. The MH Line contributes to stable processing, improved surface finish, and consistent performance across a wide range of dry-mix applications.

Key performance focus areas
• Reliable water retention
• Smooth and uniform workability
• Stable viscosity development
• Improved consistency and surface finish
• Excellent compatibility with mineral- and gypsum-based systems

Typical fields of use
• Cement-based plasters
• Skim coats and wall putties
• Gypsum-based plasters and joint compounds
• Cementitious smoothing and finishing compounds

Positioning within the portfolio
The MH Line is positioned as a balanced and versatile solution within the wheCell cellulose ether portfolio. It complements the Hydroxypropyl Methyl Cellulose (HPMC) product lines by focusing on smooth application behavior, stable rheology development, and high surface quality rather than on extended open time, enhanced robustness, or highly specialized performance characteristics.

Modified Methyl Cellulose – MMC Line

Modified Methyl Cellulose (MMC) products are developed for cement-based dry-mix systems that require controlled rheology, stable application behavior, and targeted adjustment of workability characteristics. They are used where precise viscosity control and formulation stability are more important than maximum water retention or extended open time.

Role in cement-based formulations
Products from the MMC Line act as rheology modifiers and functional performance additives. They influence viscosity development, improve material cohesion, and stabilize consistency during mixing and application. This supports predictable processing behavior in both standard and technically demanding dry-mix formulations.

Key performance focus areas
• Controlled rheology and viscosity development
• Improved application stability
• Enhanced material cohesion
• Reduced risk of segregation and bleeding
• Good compatibility with cement-based systems

Typical fields of use
• Cement-based tile adhesives
• Cement-based plasters
• Skim coats and wall putties
• Cementitious repair and finishing mortars

Positioning within the portfolio
The MMC Line represents the Modified Methyl Cellulose segment within the wheCell portfolio. It is positioned for formulations that require targeted rheology control and formulation stabilization without additional modification features aimed at extended open time, enhanced water retention, or highly specialized performance profiles.

wheBond Redispersible Polymer Powders – RDP Flex Line

Redispersible Polymer Powders of the RDP Flex Line (Type N = Normal version and H = Hydrophobic version) are designed to enhance flexibility, adhesion, cohesion, and long-term durability in cementitious and gypsum-based dry-mix systems.

Role in Cement-Based Formulations

Upon mixing with water, products from the RDP Flex Line redisperse into fine polymer particles and form a flexible polymer network within the hardened matrix. This polymer modification improves bonding to substrates, increases deformability, and enhances the mechanical performance of cementitious systems.

Key Performance Focus Areas

• Improved adhesion to mineral substrates

• Enhanced flexibility and deformability

• Increased tensile and bending strength

• Improved crack resistance and durability

• Better cohesion and workability in fresh mortars

Typical Fields of Use

• Cement-based tile adhesives

• Adhesives and base coats for exterior insulation and finishing systems

• Repair mortars and patching compounds

• Skim coats and finishing mortars

• Cement-based self-leveling compounds

Positioning Within the Portfolio

The RDP Flex Line represents the core polymer modification technology within the wheBond portfolio. It enables targeted adjustment of flexibility, adhesion, and durability and is designed to work in combination with cellulose ethers and other dry-mix additives for optimized formulation performance.

wheBond Styrene Acrylic – (SAC) S800

Styrene Acrylic emulsions of the S800 are used in cementitious, mineral, and coating systems where balanced adhesion, flexibility, and weather resistance are required.

Role in cement-based formulations

S800 act as polymer binders and modifiers. They improve adhesion, stabilize mechanical properties, and contribute to enhanced resistance against weathering and aging, supporting consistent long-term performance.

Key performance focus areas

• Improved adhesion and cohesion
• Balanced flexibility and strength
• Enhanced weather and aging resistance
• Stable mechanical performance over time
• Compatibility with cementitious and coating systems

Typical fields of use

• Cement-based tile adhesives
• Exterior insulation and finishing systems
• Cementitious coatings and surface treatments
• Mineral-based paints and protective coatings

Positioning within the portfolio

The SAC Line complements the SBR Line within the wheChemical polymer emulsion portfolio. It is positioned for applications that require balanced mechanical performance combined with improved weather resistance and long-term stability.

wheBond Styrene Butadiene Rubber – SBR Line

wheBond Styrene Butadiene Rubber emulsions of the SBR Line are used to improve adhesion, flexibility, and mechanical performance in cementitious and mineral-based systems.

Role in cement-based formulations

Products from the SBR Line act as polymer modifiers that enhance bonding between cementitious matrices and substrates. They improve flexibility, tensile strength, and resistance to mechanical and thermal stress, contributing to increased durability and crack resistance.

Key performance focus areas

• Improved adhesion to mineral substrates
• Enhanced flexibility and deformation resistance
• Increased tensile and impact strength
• Improved crack resistance
• Enhanced durability under demanding conditions

Typical fields of use

• Cement-based tile adhesives
• Repair mortars and bonding slurries
• Cementitious waterproofing systems
• Industrial coatings and mineral-based adhesives

Positioning within the portfolio

The SBR Line represents a versatile polymer modification solution within the wheChemical portfolio. It is positioned for applications that require enhanced mechanical performance and flexibility in cementitious and mineral-based systems.

wheChemical (Gypsum Retarders) GR Line

Gypsum Retarders for Controlled Setting and Extended Workability

The wheChemical GR TimeLine comprises gypsum retarders designed to provide precise control of setting time and workability in gypsum-based systems. In addition to specialized retarder blends, tartaric acid powder is included as a proven setting regulator widely used in gypsum formulations.

These additives enable formulators and applicators to adjust setting behavior, ensuring reliable processing, sufficient open time, and consistent finishing under varying job-site and climatic conditions.

Key Functions

• Controlled retardation of gypsum setting
  • Extended workability and open time
  • Improved processing stability and application control
  • Reduced risk of premature setting and material waste
  • Consistent setting behavior under variable temperatures

Typical Construction Applications

Gypsum plasters
Controlled setting time for smooth application, proper finishing, and reduced rework.

Gypsum-based joint compounds
Extended open time and stable processing for reliable joint filling and finishing.

Gypsum adhesives
Improved handling time and consistent bonding performance.

Prefabricated gypsum products
Controlled setting behavior for optimized production processes and surface quality.

Specialty gypsum formulations
Systems requiring precise adjustment of setting time and processing window.

Product Scope

The wheChemical GR Line includes gypsum retarder grades with different retardation strengths, allowing precise adaptation of setting time to formulation requirements, production conditions, and ambient temperatures.

In addition, tartaric acid powder can be used as a highly efficient setting retarder for gypsum systems. It is particularly suitable where precise dosage control, predictable retardation, and compatibility with mineral binders are required.

GR grades are designed to integrate seamlessly with cellulose ethers, polymers, and other additives used in gypsum systems.

Technical Support

Our technical team supports customers with:

• retarder selection and dosage recommendations
  • formulation optimization for gypsum-based systems
  • compatibility evaluation with gypsum binders and additives
  • troubleshooting during laboratory testing and production trials

Request a Technical Sample

Evaluate wheChemical GR Line grades and tartaric acid under your own gypsum formulation conditions.

Technical samples are available for laboratory screening and qualification.

wheChemical Starch-Based Additives – ST Line

Starch-based additives of the wheChemical ST Line are designed for cement-based dry-mix formulations where controlled water interaction, viscosity adjustment, and stable application behavior are required. They provide functional support to fresh mortar rheology and processing performance.

Role in cement-based formulations
Products from the ST Line function as rheology modifiers and water-management additives. They influence viscosity development and water distribution within the fresh mix, supporting stable consistency, controlled flow behavior, and improved processing stability during mixing and application.

Key performance focus areas
• Controlled viscosity development
• Improved water management in fresh mortars
• Stabilized consistency during application
• Support of flow and leveling behavior
• Compatibility with cement-based dry-mix systems

Typical fields of use
• Cement-based plasters
• Skim coats and wall putties
• Cement-based smoothing and leveling compounds
• General dry-mix mortar formulations

Positioning within the portfolio
The ST Line complements the cellulose ether portfolio within the wheChemical platform by providing targeted control of water interaction and fresh mortar rheology. It is positioned as a functional support additive for formulations that require additional viscosity stabilization and water management, while remaining a secondary performance contributor rather than the primary formulation driver.

wheChemical Superplasticizers – SPL Line

Superplasticizers of the SPL Line are used in cementitious systems to significantly improve flowability and workability while reducing water demand. They enable optimized processing and enhanced mechanical performance in fresh and hardened cement-based materials.

Role in cement-based formulations

Products from the SPL Line act as high-efficiency dispersing agents. They reduce particle agglomeration, improve cement dispersion, and allow for lower water-to-cement ratios. This results in improved workability in the fresh state and increased strength and density in the hardened matrix.

Key performance focus areas

• High water reduction efficiency
• Improved flowability and workability
• Enhanced early and final strength development
• Improved matrix density and durability
• Compatibility with cementitious systems

Typical fields of use

• Concrete and ready-mix concrete
• Precast concrete elements
• Self-leveling cementitious systems
• Cement-based mortars and screeds

Positioning within the portfolio

The SPL Line represents the core dispersing technology within the wheChemical portfolio. It is positioned for applications that require efficient water reduction and optimized rheology, and it complements other chemical admixtures and dry-mix additives.

wheChemical Water Repellents – WR Line

Water Repellents of the WR Line are used in cementitious systems to reduce water absorption and improve resistance to moisture penetration in hardened materials.

Role in cement-based formulations

Products from the WR Line modify the pore structure and surface properties of cementitious materials. They reduce capillary water uptake and improve durability by limiting moisture ingress without significantly affecting workability.

Key performance focus areas

• Reduced water absorption
• Improved moisture resistance
• Enhanced durability of hardened materials
• Limited impact on fresh mortar properties
• Compatibility with cementitious systems

Typical fields of use

• Exterior plasters and renders
• Masonry mortars
• Cement-based finishing systems
• Water-repellent construction materials

Positioning within the portfolio

The WR Line addresses durability and moisture protection requirements within the wheChemical portfolio. It is positioned for applications where water resistance is critical to long-term performance.