Dispersible Polymer Powders

Polymer powders are produced by spray-drying polymer dispersions. In contact with water, the dispersible polymer powder grains disintegrate and release the individual dispersion particles again. The dispersed polymer powder has the same properties as the original dispersion. Polymer powders were first produced in WACKER laboratories in 1957. Today, WACKER is the world market-leader in polymer powders.

Dispersible Polymer Powder Production Process

Vinyl Acetate-Ethylene (VAE) Polymers

PVAc increases the adhesion of mortars. When the dry-mix mortar is mixed with water on the job-site, the polymer powder redisperses and forms polymer bridges as shown here.

Polymer powders based on VAE are marketed under the trade names VINNAPAS^®, VINNACEL^® and ETONIS^®.

Main Characteristics:

VAE polymer powders combine the adhesion of vinyl acetate with the flexibility of ethylene. This leads to various ecological and economic benefits without compromising performance.

Main Benefits:

Excellent Cohesion
Very good adhesion to critical substrates such as wood, plastics or polystyrene
Flexibility can be engineered without the need to add plasticizers
Good low-temperature film forming without additional coalescing agents
Glass transition temperatures (T_g) from high to low are possible
All modern polymer powders are produced without added APEOs

Main Application Areas:

Construction
Concrete modification
PVAc

Vinyl Chloride Co- and Terpolymers (VC)

Co- and terpolymer powders based on vinyl chloride are marketed under the tradename VINNAPAS^®.

Main Characteristics:

VC-based dispersible polymer powders show excellent water resistance.

Main Benefits:

High water resistance
Excellent open time
Excellent tensile adhesion
High hydrophobicity

Main Application Areas:

Cementitious tile adhesives
Cementitious tile grouts
Skimcoats

Terpolymers Based on VAcE and VEOVA

Structure of VERSA^® 12 – vinyl laurate by WACKER

Terpolymers based on VAcE and VEOVA are marketed under the trademark VINNAPAS^®. VEOVA and vinyl laurate monomers are marketed under the name VERSA^®.

Main Characteristics:

Polymer powders based on VAcE and VEOVA have a very low T_g.

Main Benefits:

Very good crack-bridging behavior
Excellent tensile adhesion strength
Non-slump behavior
Low stickiness
Good workability

Main Application Areas:

1k waterproofing membranes

Curious?

Discover our product range on the topic of dispersible polymer powders.

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Brochures

What Do Polymers Do in Mortar?

Dispersible polymer powders are used worldwide to make buildings more durable. But what exactly is the contribution of polymer binders to this process? This film takes you on a short three-minute journey inside a cementitious tile adhesive to demonstrate how polymers improve adhesion, flexibility and impact resistance.

If Walls Could Speak

Walls define rooms, create boundaries and offer protection. Sometimes we find ourselves wondering what goes on behind them. But do we know what goes into them? We usually don’t give this a second thought. And yet, what walls are made of is important for our safety, our well-being and even for climate protection.

Test Like Crazy

There’s only one way to find out how cementitious construction materials behave under certain conditions: testing, testing and more testing. And that’s exactly what WACKER experts are doing at the technical competence center in Burghausen – and at other sites all over the world. Always with the aim of finding perfect formulations for unique applications.