Finishing

TRUPOFIN CROSSLINKER PI

Nature:

Polyisocianate.

Appearance:

Colourless liquid.

% Non-volatile elements:

Approx. 80.

Free NCO:

Approx. 13.8.

Properties

TRUPOFIN CROSSLINKER PI is a concentrated crosslinker based on polyisocianate, for aqueous leather finishes.

TRUPOFIN CROSSLINKER PI reacts easily with the hydroxylic or carboxylic groups of acrylic resins or of polyurethanes, clearly improving the final end properties of the finish (resistance to dry and wet rubbing, friction, continual flexion, etc.).

These final properties of the finishing film are reached 48 hours after application.

Applications

Although each finish requires a specific optimum proportion of TRUPOFIN CROSSLINKER PI, as a general rule it can be specified that 10 % to 50 % of crosslinker solids should be added to the resin solids of the composition.

Mixtures containing TRUPOFIN CROSSLINKER PI should be applied within 4 – 8 hours of their preparation. If during this period, the preparation become excessively thick or a precipitate is observed, it should be discarded, as it will have exceeded its pot life.

Storage: The product can be stored for one year, as long as it is kept at temperatures above 5º C and below 40º C.  Extended periods of storage or extreme temperatures may modify its aspect, which can be remedied by stirring the product thoroughly before application.

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