UNIPLEX 400
(POLYPROPYLENE GLYCOL DIBENZOATE)
CAS NO. 72245-46-6
Uniplex 400 is a low volatility, moderately solvating plasticizer. The Uniplex 400 plasticizer is
an efficient, cost/performance alternative to higher alkyl benzyl phthalate plasticizers.
Uniplex 400 is particularly useful in premium sealant applications. The low volatility
characteristics are of particular interest to formulators of polysulfide and poly urethane sealants.
Uniplex 400 is also useful in aqueous emulsion systems such as caulks and polyvinyl acetate
adhesives. Uniplex 400 may be used to formulate adhesives that need to provide good adhesion
between porous and polyolefin surfaces. In caulk formulations, the same excellent performance
of other benzoate plasticizers can be expected in addition to providing lower volatility.
Uniplex 400 is an excellent plasticizer for acrylic coatings and acrylic foam coatings. Uniplex
400 in acrylic foam is more effective than higher alkyl benzyl phthalates and tends to volatilize
less than those low volatility type phthalates.
COMPATIBILITIES
Uniplex 400 is compatible with the following polymers or polymer types (the list is not all
inclusive):
Polyvinyl Acetate Ethylene/Vinyl Acetates
Polyurethane Polysulfides
Polyvinyl chloride Ethylene/Polyvinyl chloride
Nitrocellulose Acrylates
Polystyrene Vinyl acrylates
SPECIFICATIONS
Appearance Clear, light yellow liquid, free of suspended matter
Odor Characteristic
Total Esters, G.C. 98% minimum (as Benzoate esters)
Acidity (as Benzoic Acid) 0.1% maximum
Color, APHA 250 maximum
Water Content, Karl Fischer 0.1% maximum
Hydroxyl Number, mg KOH/g 15 maximum
Uniplex 400
Date Issued: 6/22/09
www.unitexchemical.com
Page 1 of 2
Supersedes: 9/10/98
TYPICAL PROPERTIES
Molecular Weight, Minimum Average 400
Refractive Index, 25°C
1.5150 - 1.5200
Viscosity, 25°C
120 - 180 cps
Specific Gravity, 25/25°C
1.100 - 1.108
Density, 25°C
9.2 lb./gal.
Boiling Point @ 5mm Hg
262°C
Flash Point, COC
465°F (241°C)
Pour Point
-15°C
Freeze Point (Glass)
-38°C
HANDLING INFORMATION
Refer to Material Safety Data Sheet Handling Information.
These suggestions and data are based on information we believe to be reliable. They are offered in good faith, but
without guarantee, as conditions and methods of use of our products are beyond our control. We recommend that the
prospective user determine the suitability of our materials and suggestions before adopting them on a commercial
scale. Suggestions for uses of our products should not be understood as recommendations that they be used in
violation of any patents.
Uniplex 400
Date Issued: 6/22/09
www.unitexchemical.com
Page 2 of 2
Supersedes: 9/10/98