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UNITHANE® 644 WD 55

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Product overview
UNITHANE® 644 WD 55 is an urethane alkyd based on aliphatic isocyanate and was designed particularly with colour retention in mind. The resin can be used in clear and pigmented finishes and is often used in combination with colour retentive long oil alkyds.The excellent colour and gloss retention of UNITHANE® 644 WD 55, especially when exposed to ultra violet light, makes it an ideal choice for use in exterior applications, including garden furniture and marine finishing. In clear varnishes UNITHANE® 644 WD 55 can be used as the sole medium. For decorative gloss or eggshell finishes, between 20-50% of the urethane resin should be used, the balance being a colour retentive long oil alkyd.The resin is supplied in low aromatic white spirit to enable the formulation of coatings that do not require adverse environmental labelling.
Applications Decorative metal, Wood floor coatings, Wood stains and varnishes, Wood trim
Application benefits Good outdoor durability
Performance benefits Shear stable, Water resistance
Viscosity 5250 (mPa.s , at 25°C)
Solid content (%) 55
Supplied in - Solvent Low aromatic white spirit
%Fatty Acid 54