What is redispersible polymer powder?

POWDER POLYMERS

Redispersible polymer powders

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REDISPERSIBLE POLYMER POWDERS

DESCRIPTION

Redispersible polymer powder

Synonyms : RPP, polymer powder, polymer additive, RDP

Redispersible polymer powder (RPP) is a polymer capable, when mixed with water, to redisperse, again form aqueous polymer dispersions, which, as a result of curing, form a continuous polymer film, contributing to high water-holding capacity, adhesion and workability of dry building mixtures. 

Production method

The redispersible powder is obtained by spray drying a latex emulsion. To prevent the latex particles from sticking together during production and when diluted with water, polyvinyl alcohol is used. RPP (dry latexes) are usually produced on the basis of: polyvinyl acetate, copolymers of vinyl acetate with ethylene, copolymers of vinyl acetate with vinyl versatate, as well as acrylic polymers.

Properties

After mixing the dry mixture with water, the powder goes into dispersion and after drying forms a film. The film increases adhesion and elasticity, however, the more adhesion, the less elasticity and vice versa. Accordingly, powders are divided into rigid ones with high adhesion, highly elastic with low adhesion, and medium elastic with normal adhesion. In some powders, water repellents are added, imparting hydrophobic properties to the system.

Application area

Redispersible polymer powders are used in the manufacture of products such as:

- Tile adhesives; 

- Plasters; 

- Putties;

- Repair compositions; 

- Waterproofing; 

- Self-leveling floors, etc. 

Organik kimya

ORP 6072 MP

ORP 7085 HM

ORP 7090 RD

ORP 7099 RD

ORP 7365 HP

ORP 7680 SL

ORP Hydroflex 64

ORP Thermobond 45

ORP Thermobond 65

ORP Thermobond 74

ORP 6072 MP

ORP 6072 MP is a redispersible powder obtained by drying a Vinyl Acetate / Vinyl Versatate / Acrylic Terpolymer emulsion with PVA as a protective colloid. The specific chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to various substrates.

ORP 6072 MP is used for modifying mixtures containing various binders. Due to its special physical / chemical composition, ORP 6072 MP improves the adhesion, flexibility and water resistance of mortars containing cement, gypsum or lime. ORP 6072 MP provides excellent performance after heat aging and immersion in water.

Recommended area of ​​application

Tile adhesive C1: 0.5 - 1.0%

Tile adhesive C2: 2.0 - 5.0%

Adhesive for SFTK: 1.0 - 2.0%

Product properties

Chemical base

VinylAcetate / VinylVersatate / Acrylic Terpolymer (VA / VV / Acrylic Terpolymer)

Minimum foaming temperature

8 ± 1 C

Ash content at 600 C

14 ± 2%

Bulk density

400-600 kg / m3

Characteristics

Due to its strong adhesion properties, ORP 6072 MP can be used for the production of tile adhesives and SFTK adhesives that fully comply with the requirements of the standards.

With excellent adhesion, abrasion and moisture resistance, ORP 6072 MP can be used in grouting and repair mortars ranging from 2.0 to 4.0%.

Due to its excellent water resistance and compressive strength, ORP 6072 MP can also be used in SFTK plasters, from 3.0 to 5.0%.

ORP 7085 HM

ORP 7085 HM is a redispersible powder obtained by drying a Vinyl Acetate / Acrylic copolymer emulsion with PVA as a protective colloid. The specific chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to various substrates. ORP 7085 HM is used to modify mixtures containing various binders.

Recommended area of ​​application

Tile adhesive C1: 0.5 - 1.0%

Tile adhesive C2: 2.0 - 5.0%

Product properties

Chemical base

VinylAcetate / Acrylic Copolymer (VA / Acrylic Copolymer)

Minimum foaming temperature

7 ± 1 C

Ash content at 600 C

12 ± 2%

Bulk density

350-550 kg / m3

Characteristics

Due to its high adhesion properties, ORP 7085 HM can be used for the production of tile adhesives that fully meet the C1 and C2 requirements.

With excellent adhesion, abrasion and water resistance, ORP 7085 HM can be used in repair mortars at a dosage of 1.0 - 2.0%.

ORP 7090 RD

ORP 7090 RD is a redispersible powder obtained by drying a Vinyl Acetate / Acrylic Copolymer emulsion with PVA as a protective colloid. The specific chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to various substrates.

ORP 7090 RD is used for modifying mixtures containing various binders. Due to its special physical / chemical composition, ORP 7090 RD improves the adhesion, flexibility and water resistance of mortars containing cement, gypsum or lime.

Recommended area of ​​application

Tile adhesive C1: 0.5 - 1.0%

Tile adhesive C2: 2.0 - 5.0%

Product properties

Chemical base

VinylAcetate / Acrylic Copolymer (VA / Acrylic Copolymer)

Minimum foaming temperature

8 ± 1 C

Ash content at 600 C

12 ± 2%

Bulk density

400-600 kg / m3

Characteristics

Due to its high adhesive properties, ORP 7090 RD can be used for the production of tile adhesives that are fully compliant with C1 and C2 requirements.

With excellent adhesion, abrasion and water resistance, ORP 7090 RD can be used in repair mortars at a dosage of 1.0 - 2.0%.

ORP 7099 RD

RP 7099 RD is a redispersible powder obtained by drying a Vinyl Acetate / Acrylic copolymer emulsion with PVA as a protective colloid. The specific chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to various substrates.

ORP 7099 RD is used for modifying mixtures containing various binders. Due to its special physical / chemical composition, ORP 7099 RD improves the adhesion, flexibility and water resistance of mortars containing cement, gypsum or lime.

Recommended area of ​​application

Tile adhesive C1: 0.5 - 1.0%

Tile adhesive C2: 2.0 - 5.0%

Product properties

Chemical base

VinylAcetate / Acrylic Copolymer (VA / Acrylic Copolymer)

Minimum foaming temperature

5 ± 1 C

Ash content at 600 C

12 ± 2%

Bulk density

400-600 kg / m3

Characteristics

Due to its high adhesion properties, ORP 7099 RD can be used for the production of tile adhesives that are fully compliant with C1 and C2 requirements.

With excellent adhesion, abrasion and water resistance, ORP 7099 RD can be used in repair mortars at a dosage of 1.0 - 2.0%.

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ORP 7365 HP

ORP 7365 HP is a redispersible powder obtained by drying a Vinyl Acetate / Acrylic copolymer emulsion with PVA as a protective colloid. The chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and provides good adhesion to mineral substrates. ORP 7365 HP is used for modifying mixtures containing various binders. Due to its special physical / chemical composition, ORP 7365 HP improves adhesion, abrasion resistance, elasticity and water resistance of mortars.

Recommended area of ​​application

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Plastering compounds in SFTK 3.0 - 5.0%

One-component waterproofing mortars 7.0 - 10.0%

Grouting compounds for tiles 2.0 - 4.0%

Product properties

Chemical base

VinylAcetate / Acrylic Copolymer (VA / Acrylic Copolymer)

Minimum foaming temperature

0 ± 1 C

Ash content at 600 C

14 ± 2%

Bulk density

400-600 kg / m3

Characteristics

Due to its excellent water resistance, elasticity and compressive strength, ORP 7365 HP can be used for plasters in SPTC.

Due to its excellent flexibility, hydrophobicity and water resistance, ORP 7365 HP can be used in one-component waterproofing mortars.

With excellent abrasion, flexibility and water resistance, ORP 7365 HP can be used in tile grouting compounds.

ORP 7680 SL

ORP 7680 SL is a redispersible powder obtained by drying a Vinyl Acetate / Acrylic copolymer emulsion with PVA as a protective colloid. The specific chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to various substrates.

ORP 7680 SL is used for modifying mixtures containing various binders. Due to its special physical / chemical composition, ORP 7680 SL improves the adhesion, flexibility and water resistance of mortars containing cement, gypsum or lime. Especially in self-leveling mortars, ORP 7680 SL provides excellent abrasion resistance, high flexural and compressive strength and good leveling during application.

Recommended area of ​​application

Self-leveling compounds with a dosage of 0.5% to 4%

Repair compositions

Product properties

Chemical base

VinylAcetate / Acrylic Copolymer (VA / Acrylic Copolymer)

Minimum foaming temperature

5 ± 1 C

Ash content at 600 C

12 ± 2%

Bulk density

400-600 kg / m3

Characteristics

The use of ORP 7680 SL provides high wear resistance, water resistance, flexural and compressive strength.

Reduces sedimentation and efflorescence

ORP Hydroflex 64

ORP Hydroflex 64 is a redispersible powder obtained by drying a Vinyl Acetate / Vinyl Versatate / Acrylic terpolymer emulsion with PVA as a protective colloid. The chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to mineral substrates. ORP Hydroflex 64 is used for the modification of mixtures containing various binders. Thanks to its special physical / chemical composition, ORP Hydroflex 64 improves the adhesion, elasticity, hydrophobicity and water resistance of mortars. Due to its elasticity, ORP Hydroflex 64 performs very well in transverse deformation conditions.

Recommended area of ​​application

One-component waterproofing mortars 7.0 - 12.0%

Tile adhesives (CG2) at a dosage of 2.0 to 4.0%, no additional hydrophobic agent required

Grouting compounds for tiles 1.5 - 3.0%

Cement-based plasters and topcoats with a dosage of 2.0 - 4.0%

Product properties

Chemical base

Vinyl Acetate / Vinyl Versatate / Acrylic Terpolymer VA / VeoVa / Acrylic Terpolymer

Minimum foaming temperature

0 ± 1 C

Ash content at 600 C

12 ± 2%

Bulk density

400-600 kg / m3

Characteristics

ORP Hydroflex 64 can be used in mortar formulations where high flexibility / elasticity, hydrophobicity and water resistance are required at the same time

Excellent performance at low dosages in resilient one-piece membrane formulations

ORP Thermobond 45

ORP Thermobond 45 is a redispersible powder obtained by drying an emulsion of Vinyl Acrylic Copolymer with PVA as a protective colloid. The specific chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to various substrates. ORP Thermobond 45 is used to modify mixtures containing various binders. Thanks to its special physical / chemical composition, ORP Thermobond 45 improves the adhesion and elasticity of mortars containing cement, gypsum or lime.

Recommended area of ​​application

ORP Thermobond 45 can be used for the production of cement basecoats applied to EPS and XPS boards in SFTC 1.0 - 3.0%.

Adhesives for EPS and XPS boards in SFTK 0.5 - 2.0%.

Product properties

Chemical base

Vinyl Acrylic Copolymer

Minimum foaming temperature

5 ± 1 C

Ash content at 600 C

14 ± 2%

Bulk density

400-600 kg / m3

Characteristics

ORP Thermobond 45 can be used in formulations where good flexibility / elasticity, impact resistance and thixotropic mortar behavior are required.

ORP Thermobond 65

ORP Thermobond 65 is a redispersible powder obtained by drying a Vinyl Acetate / VeoVa / Acrylic terpolymer emulsion with PVA as a protective colloid. The chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and provides good adhesion to mineral substrates. ORP Thermobond 65 is used to modify mixtures containing various binders. Due to its special physical / chemical composition, ORP Thermobond 65 improves the adhesion, elasticity and water resistance of mortars. Especially because of the elastic nature of ORP Thermobond 65 performs well under lateral deformation conditions.

Recommended area of ​​application

Cement basecoats applied to EPS and XPS boards in SFTK 3.0 - 5.0%.

Adhesives for EPS and XPS boards in SFTK 1.0 - 2.0%.

Elastic tile adhesives (S1 and S2) 3.0 - 7.0%.

Product properties

Chemical base

Vinyl Acetate / VeoVa / Acrylic Terpolymer (VA / VeoVa / Acrylic Terpolymer)

Minimum foaming temperature

0 C

Ash content at 600 C

12 ± 2%

Bulk density

400-600 kg / m3

Characteristics

ORP Thermobond 65 can be used in formulations where good flexibility / elasticity, impact resistance and thixotropic mortar behavior as well as excellent water resistance are required

ORP Thermobond 74

ORP Thermobond 74 is a redispersible powder obtained by drying a Vinyl Acetate / Acrylic copolymer emulsion with PVA as a protective colloid. The chemical composition of the polymer ensures the coalescence of the redispersible polymer at low temperatures and ensures good adhesion to mineral substrates. ORP Thermobond 74 is used for modifying mixtures containing various binders. Thanks to its special physical / chemical composition, ORP Thermobond 74 improves the adhesion, elasticity and water resistance of mortars. Especially because of the elastic nature of ORP Thermobond 74 works very well under lateral deformation conditions.

Recommended area of ​​application

Cement basecoats applied to EPS and XPS boards in SFTK 3.0 - 5.0%.

Adhesives for EPS and XPS boards in SFTK 1.0 - 2.0%.

Elastic tile adhesives (S1 and S2) 3.0 - 7.0%.

Product properties

Chemical base

Vinyl Acetate / Acrylic Copolymer (VA / Acrylic Copolymer)

Minimum foaming temperature

0 C

Ash content at 600 C

14 ± 2%

Bulk density

400-600 kg / m3

Characteristics

ORP Thermobond 74 can be used in formulations where good flexibility / elasticity, impact resistance and thixotropic mortar behavior are required.

Redispersible polymer powders are free-flowing, white powders manufactured by spray-drying polymer dispersions. When added to water, these polymer powders can disintegrate and form individual polymer dispersions again, with identical properties as the original dispersion.

Redispersible polymer powders are added to mortar to increase the flexibility and cohesiveness of mortar. This forms a continuous polymer film that helps improve water retention, enhance the bond strength of mortar, and improve the workability of dry mix mortar.

RDP Production Process

The redispersible polymer powder is a latex emulsion created by spray-drying macromolecular dispersions under particular conditions. During production, polyvinyl alcohol is added to stop the latex particles bonding together. These polymer powders are usually manufactured based on acrylic polymers, polyvinyl acetate, copolymers of vinyl acetate with vinyl versatate or with ethylene.
RDPs comprise of polymer resin, the crucial ingredient of dispersion particles and an important player for redispersible powders to function. As an additive, polymer powders act as modified resin and polymer resin.

Properties of Redispersible Polymer Powders

When water is added to the dry mix mortar, the polymer powder becomes a dispersion and forms a film upon drying. This film promotes elasticity and adhesion. Redispersible polymer powders are classified into highly elastic with low adhesion, rigid with high adhesion, and medium elastic with standard adhesion. Water is added to some powders to impart hydrophobic characteristics to the material.

• Vinyl Acetate-Ethylene Polymers (VAE) – These powders blend the flexibility of ethylene and the adhesion of vinyl acetate, leading to many economic and ecological benefits without affecting performance.
  They offer several benefits, including excellent cohesion, flexibility, good low-temperature film and variable glass transition temperature. They also show great adhesion to certain substrates like plastics and wood.
• Vinyl Chloride Copolymers and Terpolymers – These polymer powders show great water resistance, high hydrophobicity, and excellent tensile adhesion.
• Terpolymers based on VEOVA and VAcE – These polymer powders have extremely low transition temperatures. The benefits of using polymer powders based on VEOVA and VAcE include good workability, non-slump behaviour, good tensile adhesion strength, excellent crack-bridging properties, and low stickiness.

Applications

Redispersible polymer powders have numerous applications across various industries. They are widely used in:

• Construction adhesives
• Tile adhesives
• Joint mortars
• External wall putty
• Building binders
• Filling compositions like concrete repair joints, crack isolation membranes, and waterproofing membrane applications.

Interested in RDP Powders Products? Contact Bisley & Company

Bisley offers a variety of RDP polymer products that can help improve abrasion resistance, flexural strength, gas migration, and workability properties of the mixed mortar. These polymer powders are easily dissolved in water and develop stable emulsions.

Please send us a message online to learn more about the available specifications, grades, packaging, and applications of polymer powders. Our team will help you find an RDP powder product that suits your application.

If you want to learn more, please visit our website Methyl Hydroxyethyl Cellulose China Supplier.