Energy savings plus mechanical reinforcement and rheology control

Epoxy Adhesive for Trowelable Mortar Applications by Dow Chemicals

Adhesives Formulation

Applicable Type

Reactive Adhesives , Epoxy Adhesives

Applicable Base Polymer

Epoxies (EP)

Applicable Industrial Sectors

Automotive , Buildings & constructions

Applicable Base Polymer Properties

Because of their thermosetting molecular structure, epoxy adhesives exhibit excellent tensile-shear strength but poor peel strength unless modified with a more resilient polymer. Epoxy adhesives offer excellent resistance to oil, moisture, and many solvents. Low shrinkage on curing and high resistance to creep under prolonged stress are characteristics of many high quality epoxy adhesives. Epoxy resins have no evolution of volatiles during cure and are useful in gap-filling applications.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Epoxy resin (DER 324, Dow Chemical)

xxx

Antifoaming agent

xxxxxxxxxxx

Amine curing agent (DEH 39, Dow Chemical)

xxxx

Silica sand (0.4-1.2 mm)

xxx

Silica sand (0.18-0.4 mm)

xxx

Silica sand (0.12-0.18 mm)

xxx

Typical Properties

Properties

Initial set (300 gms), min

xxx

Final set (300 gms), min

xxx

Tensile strength, MPa

xxxx

Flexural strength, MPa

xxxx

Compressive strength, MPa

xxxx

Heat deflection temperature, °C

Coefficient of linear expansion @ 25°C-30°C, ppm / °C

xxxx

Processing

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Resulting Properties

The very low viscosity of DER 324 Epoxy Resin and the excellent wetting properties make this epoxy resin suitable for self-leveling flooring systems as well as epoxy trowelable floorings or mortars. An example of such trowelable epoxy formulation is shown below. Trowelable epoxy compounds such as this example can be designed as complete flooring systems but can also be designed for anchoring heavy machinery and the like. Besides mechanical strength they can also offer high levels of chemical resistance.

The source of Epoxy Adhesive for Trowelable Mortar Applications is Dow Chemical Company.

Tips and Tricks

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