Powdery Additives

RUCOMIN® & RUCOTIX®

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The RUDOLF GROUP produces powder additives for the use in dry mixtures, which are mixed with water before use. The silicone water-repellent additives, defoamers and rheology auxiliaries can easily be mixed with other powdery raw materials like sand, cement and plaster.


RUCOMIN® B-PW

Silicone-Hydrophobizing-Powder for lime cement

Silicone water repellent additive in powder form for cemet-based mineral construction material mixes, e.g. premixed plasters, mortars, grouts and powder paints

  • for cement-based building materials
  • water soluble
  • excellent water repellence
  • does not influence permeability to water vapor
  • high early water resistance
  • creates a beading effect
  • low soiling tendency

Addition level and application: Required quantity: 0,1 - 0,5 % (calculated on total formulation)

Chemical description: Silanes / Polysiloxanes on a water-soluble carrier

Active substance: 100 %

Solvent:

Appearance: Yellowish powder

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RUCOMIN® B-PM

Powder Defoamer

Defoamer in powder form for mineral construction material mixes, e.g. premixed plasters, mortars, joint fillers, screeds and powder paints

  • highly effective
  • silicone free

Addition level and application: Required quantity: 0,1 - 0,5 % (calculated on total formulation)

Chemical description: Blend of liquid hydrocarbons and emulsifiers on an inorganic carrier

Active substance: 30 %

Solvent: Water-insoluble

Appearance: White powder

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RUCOMIN® B-RE 95

Rheology additive for gypsum and cement

Improves in gypsum-based dry-mix systems key properties as workability and productivity of the wet mortar, setting properties and adhesion on critical surfac-es

  • especially suitable for gypsum
  • excellent water binding and water retention ability
  • rheology control of the wet mortar
  • no adhesion of the wet mortar on the trowels, therefore clean tools
  • excellent suspending and stabilizing of the mineral components
  • excellent alkaline resistance
  • long open time
  • high stability of the wet mortar on vertical surfaces
  • crack-free setting

Addition level and application: Required quantity: machine and hand applied plas-ters based on gypsum: 0,1 – 0,3 % putties based on gypsum: 0,3 – 0,8 % (calculated on the dry weight of the masses)

Chemical description: Hydroxypropyl Guar

Active substance: 100 %

Solvent:

Appearance: Yellowish fine powder

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RUCOTIX® B-GR 10, 12, 14, 20

Rheology additives for paints and plasters

Improves key properties of latex paints and plasters like storage stability, workability, productivity and adhesion on critical surfaces.

  • very high viscosity and shear thinning ability
  • provides good suspending and protective colloid ability
  • provides good dispersing and stabilizing ability of the fillers
  • excellent water retention
  • low spatter tendency and low sagging during paint application
  • good paint levelling
  • excellent alkaline-resistance
  • long open time
  • excellent adhesion on critical surfaces

Addition level and application: Required quantity: emulsion paints: 0,2 – 1,2 %; solid colors: 0,3 – 1,3 %; powder paints: 0,3 – 1,2 %; synthetic resin plasters: 0,2 – 0,9 %; dispersion adhesives: 0,2 – 1,0 %

Chemical description: Hydroxypropyl Guar

Active substance: 100 %

Solvent:

Appearance: Yellowish fine powder

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RUCOTIX® B-XA 2

Rheology additive based on xanthan

Powdery rheology additive for aqueous or mineral building material mixtures.

  • distinct pseudoplasticity at low application concentrations
  • excellent stability, even with high electrolyte concentrations
  • high viscosity stability within a wide pH range
  • high stability to temperature of the aqueous solutions
  • distinct lubrication and gliding effect when pumping two-phase-systems
  • excellent stability against microbial infestation

Addition level and application: Required quantity: 0.01 - 0.09% in paint formulations 0.1 - 0.6% in synthetic resin plaster systems 0.04 - 0.1% in cement-based systems (calculated on total formulation)

Chemical description: Xanthan

Active substance: 100 %

Solvent:

Appearance: Yellowish fine powder

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RUCOTIX® B-XA 5

Rheology additive based on xanthan

  • powdery rheology additive for aqueous or mineral building material mixtures.
  • controllable hydration offers easy dispersing into aqueous systems due to controllable distinct pseudoplasticity at low application concentrations
  • excellent stability, even with high electrolyte concentrations
  • high viscosity stability within a wide pH range
  • high stability to temperature of the aqueous solutions
  • distinct lubrication and gliding effect when pumping two-phase-systems
  • excellent stability against microbial infestation

Addition level and application: Required quantity: 0.01 - 0.09% in paint formulations 0.1 - 0.6% in synthetic resin plaster systems 0.04 - 0.1% in cement-based systems (calculated on total formulation)

Chemical description: Xanthan

Active substance: 100 %

Solvent:

Appearance: Yellowish fine powder

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