Energy savings plus mechanical reinforcement and rheology control

2K Waterborne Epoxy for Self Leveling Floors (A) by Air Products

Adhesives Formulation

Applicable Type

Waterborne Adhesives , Reactive Adhesives , Epoxy Adhesives

Applicable Base Polymer

Epoxies (EP)

Applicable Industrial Sectors

Buildings & constructions

Applicable Base Polymer Properties

Waterborne epoxy dispersions have been employed effectively for many years in the coatings market primarily for the surface protection of concrete and metals. These products were developed in response to environmental regulations to reduce solvent levels in coatings. Since these dispersions adhere well to a wide variety of substrates and provide a high degree of strength and resistance to service environments, they have also naturally found applications as adhesives.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Epoxy Component:

Bisphenol A DGE epoxy resin (Various)

xxxx

Epoxy Component

Epoxy resin (Epodil 748, Air Products)

xxxx

Curing Agent Component

Hardener (Anquamine 735, Air Products)

xxxxx

Curing Agent Component

Defoamer (BYK 1770, BYK)

xxxx

Curing Agent Component

Titanium dioxide (Kronos 2160, Kronos)

xxxx

Curing Agent Component

Diluent – DI water

xxxxx

Curing Agent Component

Filler (Cimbar 325, Cimbar)

xxxxx

Curing Agent Component

Filler (Sil-Co-Sil 106, US Silica)

xxxxx

Curing Agent Component

Filler, quart sand (approx 150 µm)

xxxxx

Curing Agent Component

Filler, quartz sand (approx 300µm)

xxxxx

Curing Agent Component

Thixotropic agent (Zanthum gum, 3%)

xxxx

Typical Properties

Properties

Solids content, %

Part A

Part B

xxx

Mixture

Working time, mins

Shore D hardness, 1 Day at 25° C

Shore D hardness, 7 days at 25°C

Processing

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Resulting Properties

Waterborne epoxy adhesives can be produced with epoxy emulsions and polyamide-amine curing agents. A typical starting formulation is shown for a self-leveling compound for concrete floors. This formulation can be used as either a coating or an adhesive. In either application, once the mixed emulsion is applied to the substrate the water must be evaporated. In the case of the adhesive application, this must be completed before non-porous substrates are mated. With the particular formulation presented above, the pot life is several hours at room temperature.

The source of 2K Waterborne Epoxy for Self Leveling Floors (A) is Air Products

Tips and Tricks

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