Energy savings plus mechanical reinforcement and rheology control

2K Polyurethane Adhesive for Parquet Flooring (Flexible)

Adhesives Formulation

Applicable Type

Applicable Base Polymer Properties

Polyurethanes are extensively and successfully used as adhesives and sealants, and they have an excellent record of durability. Polyurethane-based adhesives form tough bonds with high peel strength. They have better low temperature strength than other adhesives. They have exceptionally high strength at cryogenic temperatures. They have good chemical resistance, although not generally as good as epoxies or acrylics. Urethanes do not have high temperature resistance. Maximum upper use limits are about 150°C, and most formulations are used below 100°C.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Albodur 916

Albodur 901

Chalk

xxxx

Zeolite

xxx

Fumed silica

xxx

Suprasec 1207

Typical Properties

Properties

Lap Shear Strength (on oak, MPa, after 7 days curing at room temperature)

xxxx

Viscosity, mPa-s

Processing

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Resulting Properties

The formulation above is for a general purpose two component polyurethane adhesive. It can be used as a flooring adhesive particularly on parquet flooring. The pot life for this system can be altered significantly by using different isocyanate curing agents. Often additives are not required to provide flexibility or toughness as in the case of epoxy formulations. Polyurethanes have the capability of providing these properties through manipulation of the resulting molecule by proper choice of isocyanate and polyol. However, additives are used mainly to stabilize the adhesive relative to moisture, oxidation, UV, etc. Source:Huntsman

Tips and Tricks

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