DIPROPYLENE GLYCOL DIMETHYL ETHER

Dipropylene glycol DME is a special solvent for paints and coatings.
Chemical Name/Synonyms: Dimethyl dipropylene glycol/Proglyme, DPGDME, DPDME, DMM

Chemical Formula: C8H18O3
EC / List no.: 601-045-4
CAS no.: 111109-77-4

Dipropylene glycol dimethyl ether is a low-toxic, molding and hydrophilic non-ionic solvent. DPGDME also helps in curing also. 

Dipropylene glycol dimethyl ether is a colorless transparent liquid. Can be used in water-based coatings.

Dipropylene glycol DME is a hygroscopic dipropylene glycol dimethyl ether. 
Dipropylene glycol dimethyl ether exhibits chemical stability, absence of reactive groups and low toxicity. 
Dipropylene glycol dimethyl ether is not listed as a hazardous air pollutant and offers an alternative to solvents being phased out as a result of the Clean Air Act. 
Dipropylene glycol dimethyl ether is a colorless liquid with a mild, pleasant odor. 
Dipropylene glycol dimethyl ether is completely miscible with most common organic solvents and has limited solubility in water. 
Dipropylene glycol dimethyl ether forms an azeotrope with water (38% Dipropylene glycol DME and 62% water). 
Dipropylenglycol dimethylether is used as an environmentally friendly replacement for NMP (N-methyl pyrrolidone). 
Dipropylenglycol dimethylether is suitable for water-based and solvent-based coating systems. 
Dipropylene glycol DME is designed for use as a coalescing agent or as solvent for polyurethane/isocyanate prepolymer in 2c-PUDs. 
Dipropylene glycol dimethyl ether can also be used in effective paint and varnish-stripping formulations by combining it with a protic solvent and as a co-solvent in aluminum pastes.


Regulatory process names
DPG-DME

IUPAC names
2-methoxy-1-(2-methoxypropoxy)propane; 2-methoxy-1-[(1-methoxypropan-2-yl)oxy]propane
Dipropilene glicol dimetil etere
Dipropylene diglycol dimethyl ether
Dipropylene Glycol Dimethyl Ether 
Dipropylene glycol dimethyl ether
dipropylene glycol dimethyl ether 
Dipropylene glycol dimethyl ether
Dipropyleneglycol dimethylether
DPG-DME; Dipropylene glycol dimethyl ether
DPG-DME; PROGLYDE* DMM
Oxybis(methoxypropan)
PROGLYDE DMM GLYCOL DIETHER
Propane, oxybis[methoxy-
Reaction mass of 2-methoxy-1-(2-methoxypropoxy)propane and 2-methoxy-1-[(1-methoxypropan-2-yl)oxy]propane

Trade names
DPG-DME
PROGLYDE DMM Glycol Diether
PROGLYDE DMM Glycol Ether

Dipropylene Glycol Dimethyl Ether (DPGDME) is a colorless liquid with a mild, pleasant odor. It is completely miscible with most common organic solvents. However, it has limited solubility in water. DPGDME has no hydroxyl functionality. It is an inert, aprotic solvent and can be used in proton sensitive systems. Dipropylene Glycol Dimethyl Ether is not listed as a Hazardous Air Pollutant, has low toxicity, and offers an alternative to solvents being phased out as a result of the Clean Air Act. Due to its chemical stability and the absence of reactive groups, DPGDME can also be used as an inert reaction medium, e. g. for reactions with alkali and alkaline-earth metals (Grignard reactions), polymerizations etc.

Dipropylene Glycol Dimethyl Ether is used in solvent-based coatings and water-based polyurethane/ isocyanate coating systems. It is used as environmentally friendly substitute for NMP (N-methyl pyrrolidone) e.g as as coalescing agent in water based polyurethane dispersions. Dipropylene glycol dimethyl ether is also used as a solvent for wood and furniture coatings as well as a solvent for hardeners.

Dipropylene Glycol Dimethyl Ether
CAS #111109-77-4
Synonym: DPDME; DPGDME; Dipropylene glycol; Dimethoxy dipropyleneglycol; Dipropylenglykoldimethylether

Dipropylene Glycol Dimethyl Ether is used in protonsensitive systems such as water-based polyurethane coatings. 
Dipropylene Glycol Dimethyl Ether may also be used as an azeotroping solvent for esterification reactions. 
With its excellent stability, solvency, and coupling performance, DPGDME provides excellent compatibility with a wide range of agricultural formulations and cleaning products.


Propane, oxybis[methoxy-

IUPAC names
1-methoxy-3-(3-methoxypropoxy)propane
Dipropylene Glycol Dimethyl Ether
Dipropylene glycol dimethyl ether
dipropylene glycol dimethyl ether
Propane, oxybis(methoxy-)
Propane, oxybis[methoxy-
dipropylene glycol dimethyl ether

Use: Dipropylene Glycol Dimethyl Ether is unique among propylene oxide-based solvents in that it is aprotic (no hydroxyl functionality). 
As a result, DPGDME is relatively inert and can be used in protonsensitive systems such as water-based polyurethane coatings. 
Dipropylene Glycol Dimethyl Ether can also be used as an azeotroping solvent for esterification reactions. 
And with its excellent stability, solvency, and coupling performance, Dipropylene Glycol Dimethyl Ether provides excellent compatibility with a wide range of agricultural formulations and cleaning products.


1-Methoxy-3-(3-methoxypropoxy)propan [German] [ACD/IUPAC Name]
1-Methoxy-3-(3-methoxypropoxy)propane [ACD/IUPAC Name]
1-Méthoxy-3-(3-méthoxypropoxy)propane [French] [ACD/IUPAC Name]
Di(propylene glycol) dimethyl ether
Propane, 1,1'-oxybis[3-methoxy- [ACD/Index Name]
propane, 1-methoxy-3-(3-methoxypropoxy)-
111109-77-4 [RN]
404-640-5 [EINECS]
66226-74-2 [RN]
Dimethoxy dipropyleneglycol
dipropylene glycol dimethyl ether
Oxybis(methoxypropane)

Applications of Dipropylene Glycol Dimethyl Ether:
Dipropylene glycol dimethyl ether is primarily used as a solvent in paints, varnishes, printing inks and strippers and in coatings for automotive and architectural applications, wood and coil coatings and metal finishing. 
Dipropylene glycol dimethyl ether is also used as a coalescent agent in water-based paints and inks where it serves to promote polymer fusion during the drying process, as a chemical building block for the production of dipropylene glycol dimethyl ether acetate, and as a chemical additive in the oil and drilling industry.
Dipropylene glycol dimethyl ether is found in a wide range of household and industrial cleaners including all-purpose cleaners, glass and other surface cleaners, paint brush cleaners, disinfectants and carpet cleaners. 
Dipropylene glycol dimethyl ether is also used as a coupling agent in fabric dyes; as a solvent, coupler, emollient and stabilizer in cosmetic products; and as a stabilizer in pesticides and herbicides.


Dipropylene Glycol Dimethyl Ether
Dipropylene Glycol Dimethyl Ether is unique among propylene oxide-based solvents in that it is aprotic (no hydroxyl functionality). 
As a result, Dipropylene Glycol Dimethyl Ether is relatively inert and it can be used in protonsensitive systems such as water-based polyurethane coatings. 
Dipropylene Glycol Dimethyl Ether can also be used as an azeotroping solvent for esterification reactions. 
And with its excellent stability, solvency, and coupling performance, Dipropylene Glycol Dimethyl Ether  provides excellent compatibility with a wide range of agricultural formulations and cleaning products.

ALSO KNOWN AS
Proglyde DMM; Bis(methoxypropyl) ether; DPGDME
Dipropylene glycol dimethyl ether
UNII-59X1IJT82G
89399-28-0
59X1IJT82G
1,2'-oxydipropanol dimethyl ether
1-methoxy-2-(2-methoxypropoxy)propane
Propane, 2-methoxy-1-(2-methoxy-1-methylethoxy)-
2-(2-Hydroxypropoxy)propan-1-ol dimethyl ether
Dipropylenglycol dimethylether
SCHEMBL77962
2-METHOXY-1-[(1-METHOXYPROPAN-2-YL)OXY]PROPANE
DTXSID00274229
MFCD00210047
AKOS015901516
2-methoxy-1-(1-methoxypropan-2-yloxy)propane
Propane,2-methoxy-1-(2-methoxy-1-methylethoxy)-
J-002522
Q27261724
Di(propylene glycol) dimethyl ether, mixture of isomers
UNII-Q4KC92LJ05 component OQUIHNRSFOIOFU-UHFFFAOYSA-N


Application:
Dipropylene glycol dimethyl ether - "Proglyme" - is a very versatile and environmentally friendly solvent. 
Generally Dipropylene glycol dimethyl ether is used in waterborne coatings and high solids coatings. 
Proglyme is a very strong solvent for coatings and paints. Proglyme is also can be used as solvent for formulating polyurethane dispersions.

Name: Dimethoxy dipropyleneglycol
Synonyms: Dipropylene glycol dimethyl ether; DPDME; DPGDME; Dipropyleneglycol-dimethylether

Applications of Dipropylene glycol dimethyl ether: Solvent, Anti-icing Agent, Hydraulic and Brake Fluid, and Chemical Intermediate

End-user Industries of Dipropylene glycol dimethyl ether : Paints and Coatings, Printing, Pharmaceuticals, Cosmetic and Personal Care, Adhesives

Applications of Dipropylene glycol dimethyl ether
•    Adhesives & cements
•    Agricultural chemicals
•    All purpose cleaners
•    Cleaning compounds
•    Coalescing agent
•    Conditioners
•    Cosmetics
•    Coupling agent
•    Electronics
•    Flexographic printing ink solvent
•    Floor cleaners
•    Floor polishes
•    Fuel additive
•    Gravure printing ink
•    Grease cleaners
•    Green products
•    Hair care
•    Hair conditioner
•    Hair styling aids
•    Hard surface cleaners
•    Ink solvent
•    Metal cleaners
•    Paint solvent
•    Paint strippers
•    Silk screen printing ink
•    Solvent
•    Textile
•    Wax strippers

Dipropylene Glycol Dimethyl Ether across different end-use industries.

Key applications of Dipropylene glycol dimethyl ether as follows:

Solvents
Coalescing Agents
Coatings


Basis of function:    
Solvent
Coalescing Agent

Basis of application: 
Inks
Paints and Coatings
Cleaners
Others

Dipropylene glycol dimethyl ether has multiple uses:
Dipropylene glycol dimethyl ether is environmentally friendly solvent, typically for use in waterborne and curing coatings; in addition it can be used for the synthesis of polyurethane, etc.

Dipropylene glycol DME inerit solvent
GREEN NMP REPLACEMENT
Dipropylene glycol dimethyl ether is an inert solvent and well suited as a non-toxic alternative to NMP and NEP in paints & coatings applications, especially for waterborne PU-dispersions and 2P-formulations.
Benefits
Safe handling
inert solvent
water soluble
non-toxic


Dipropylene glycol dimethyl ether uses and applications include: Solvent in coatings including PU coatings, agriculture formulations, resin production, cleaning products; solvent, coupling agent in cosmetics, toiletries; diluent for thixotrope systems

Formulations often contain a blend of slow and medium evaporation rate solvents to optimise the film properties and thus the final appearance. 
Evaporation rate can affect the drying time of the coatings or inks as well as the film appearance and durability. 
The evaporation profiles  of Dipropylene glycol DME and Diethylene glycol dibutyl ether are given below:


Compound    evaporation nUMber(n-bUac = 1)
Dipropylene glycol DME    0.13
Diethylene glycol dibutyl ether    <0.01
Evaporation numbers of Dipropylene glycol DME and Diethylene glycol dibutyl ether


Certainly it should be kept in mind that the evaporation rate of the pure solvent gives only a guide for the speed of drying of the coating. 
The evaporation of the solvent from a film depends strongly on the affinity of the solvent to the binder. 
A solvent or coalescent which is normally highly volatile but shows a strong affinity to the binder will evaporate slowly from the film.  
Industrial coatings usually have to meet short dry-times. 
As it can be generally stated that the more volatile the coalescing agent, the more the coalescing performance declines which lends to using a coalescent of medium volatility. 


However, the best way to determine solvency is to simply test the solubility of typical coating resins in Dipropylene glycol DME and Diethylene glycol dibutyl ether are as shown in the following table:
Compound              DPGDME   DEGDBE
Acrylic (e.g. Acryloid™ B-66)    +    -
Alkyd (e.g. Plexal® P65)    +    -
Epoxy (e.g. D.E.R.™ 331)    +    +
Melamine (e.g. Cymel® 300)    +    +
Isocyanate (e.g. Desmodur® N100)    +    -
Polyester (e.g. Versamid® 930)    -    -
Polyester (e.g. Desmophen® 852)    +    -

Solubility of typical resins in Dipropylene glycol DME and Diethylene glycol dibutyl ether (+ = solubility >250 g/L)


The results show that Dipropylene glycol DME usually lowers the MFFT and function as a  softener in latex formulations. 
Further comparisons of Dipropylene glycol DME with common  latex and acrylic resin binders for a wide variety of applications can be found in the literature. 


Replacing N-Methylpyrrolidone in PUD Coatings and Paint Stripper Formulations
According to REGULATION (EC) No. 1272/2008 N-Methyl pyrrolidone (NMP) is classified as CMR-substance (reprotoxic category 1B, H360D: May damage the unborn child); formulations containing more than 0.1% NMP have to be classified as toxic within the field of application of REACH. 
Additionally, CMR-substances are restricted to closed applications only by REACH to guarantee compliance with the substances´ DNEL- and PNECS-values.
Dipropylene glycol DME is not classified and lends itself as a suitable replacement for NMP in several cases.


                         dipropylene glycol DME         NMP
Melting Point             -80 °C                 -24 °C
Boiling Point             175 °C             204 °C
Flash Point              65 °C              91 °C
Solubility in Water @ 20 °C     526 g/L            miscible
Classification                -               reprotoxic category 1B, H360D

PUD coatingS
N-methylpyrrolidone (NMP) has been successfully used as a processing aid in the manufacturing of polyurethane dispersions (PUDs) for many years. 
However, the toxicity of NMP makes the presence of this solvent in the finished product undesirable. 
A replacement candidate for NMP in the conventional process for the pre-polymer stage should have the following properties: 
•     Inert, non-reactive solvent
•    Non-toxic and easy to handle
•    High solvating power
•    High chemical stability over a wide pH range
•    Mild odour
•    Low/moderate evaporation numbers

Our Dipropylene glycol DME fulfils all of these requirements. 
As Dipropylene glycol DME is not completely water-soluble and still has a strong affinity for hydrophobic compounds, Dipropylene glycol DME will aid in coupling the polyisocyanate into the water phase. 
Compared to other solvents, Dipropylene glycol DME is a more effective solvent for reducing the viscosity of polyisocyanate resins. 
And since Dipropylene glycol DME is not especially hygroscopic (compared to NMP), resin formulators can be sure that little moisture will be present to cause early CO2 formation by the reaction of water with isocyanate. 
The surface tension of Dipropylene glycol DME is lower (26.3 mN/m at 25 °C) than that of many other solvents and therefore helpful to reduce the formation of microblisters caused by CO2 trapped in the film during the drying circle. 
The effectiveness and benefits of Dipropylene glycol DME usage in PUDs has been proven during the last 20 years.
In coating formulations, Dipropylene glycol DME can also be used as a co-solvent in combination with propylene glycol methyl ether acetate (PMA) as an alternative to ethylene glycol ethyl ether acetate (EEA), which has been identified as a CMR-substance. 
Experimental results suggest that the use of Dipropylene glycol DME as solvent additive to PMA provides film hardness development rates and final film hardness that are comparable to formulations based on EEA and superior to those based on PMA alone. 
The disadvantage of Dipropylene glycol DME – showing a lower solubility for 2,2-di(hydroxymethyl)-propionic acid (DMPA) in comparison with NMP, can be offset by adding a surfactant such as Tegomer® D3403, for instance, to the prepolymer.

Paint Stripper Formulations
The removal of old or unwanted (e.g. graffiti) paint is often needed before applying new layers of coatings. 
The wide range of paint types means that specific paint strippers have to be formulated for particular applications. 
In the past, NMP was successfully used in paint stripping formulations, but its toxicity presents a health risk and drives the efforts to develop NMP-free formulations. 
Water-based paint stripper formulations containing Dipropylene glycol DME exhibit good solvency and enhanced stripping times over a range of paint types. 


PROGLYDE DMM Dipropylene Glycol Dimethyl ether is an aprotic (no hydroxyl functionality), that can be used in protonsensitive systems such as water-based polyurethane coatings. 
Dipropylene Glycol Dimethyl ether can also be used as an azeotroping solvent for esterification reactions. 
And with its excellent stability, solvency, and coupling performance. 
Dipropylene Glycol Dimethyl ether provides excellent compatibility with a wide range of agricultural formulations and cleaning products.

Uses:
Cleaners
Textiles
Cosmetics
Resins
Coating formulation and application
Industrial, automotive and architectural coatings

Benefits:
Favorable enviornmental profile, superior performance for end use applications, formulations may require less Performance solvent than P or E Series

Properties
These values are not intended for use in preparing specifications.

Biodegradibility: Inherent
Bleach Stable: Yes
Boiling Point (°C @760mmHg): 175
CAS#: 111109-77-4
Chemical Name: Dipropylene glycol dimethyl ether
Chemistry: PO
Consumer Products US EPA LVP Exemption : VOC
Density (25°C) in lb/gal (g/cc): 7.5 (0.899)

Evaporation Rate (n-butyl acetate=1.0): 0.13
Flash Point, Closed Cup: 65 °C
Freezing Point °F(°C): <-96 (<-71)
Hansen Solubility Parameter, dD (joules/cm3)1/2: 14.9


Molecular Weight: 162.2 g/mol

Specific Gravity (25°C): 0.902
Surface Tension (1% actives, 25 °C): 26.3 dynes/cm
Vapor Pressure (mmHg @ 20°C):0.55
Viscosity (25°C): 1 cP

PROGLYDE* DMM glycol diether is unique among propylene oxide-based solvents in that it is aprotic (no hydroxyl functionality). As a result, it is relatively inert and can be used in protonsensitive systems such as water-based polyurethane coatings. PROGLYDE DMM can also be used as an azeotroping solvent for esterification reactions. And with its excellent stability, solvency, and coupling performance, PROGLYDE DMM glycol diether provides excellent compatibility with a wide range of agricultural formulations and cleaning products.


Suggested Applications 
• Aprotic solvent for use in water-based polyurethane/isocyanate coating systems. 
• Active solvency for solvent-based coatings. 
• Water removal agent useful in esterification reactions for the production of exceptionally clear resins. 
• Powerful paint-stripping formulation when used in combination with small amounts of protic solvent. 
• Aproticity, strong solvency, and coupling performance provide for compatibility with a wide range of agricultural formulations. 
• Effective for printed circuit board cleaners developed to reduce CFC emissions. 
• Stability over a wide pH range allows for use in strongly acidic or alkaline cleaners. 

Features 
• Aproticity 
• High solvency 
• Coupling ability 
• Coalescing ability
• Water removal 
• Powerful diluent 
• Thermal and chemical stability 
• Low odor 
• Moderate evaporation rate 
• Low toxicity


DIPROPYLENE GLYCOL DIMETHYL ETHER (DPDM)
DESCRIPTION
Chemical Name : Dipropylene Glycol Dimethyl Ether
IUPAC Name : 1,methoxy,2,(2,methoxypropoxy)propane
Trade Name : Di(propylene glycol) methyl ether 
Other Trade Name : 1,2',oxydipropanol dimethyl ether, 2,(2,Hydroxypropoxy)propan,1,ol dimethyl ether, Dipropylene glycol dimethylether
CAS# : 111109-77-4
Family : Glycol Ethers & Glycol Ether Acetates


Chemical Properties
Clear colorless liquid
Uses: Dipropylene glycol diMethyl ether can be used as aprotic solvent for use on proton-sensitive systems such as water-based polyurethane coatings.

•    Di(propylene glycol) diMethyl ether, Mixture of isoMers >=99.1%
•    Proglyde? DMM
•    Di(propylene glycol) dimethyl ether, 99.5%, mixture of isomers
•    dipropyleneglycoldimethylether,mixtureofisomers
•    oxybis(methoxy-propan
•    PROGLYDE(TM) DMM
•    DIPROPYLENE GLYCOL DIMETHYL ETHER
•    BIS(METHOXYPROPYL) ETHER
•    DI(PROPYLENE GLYCOL) DIMETHYL ETHER, 99.1+%, MIXTURE OF ISOMERS
•    Propane, oxybismethoxy-
•    Dipropylenglykoldimethylether
•    Dimethoxy dipropyleneglycol
•    DPDME
•    DPGDME
•    1-Methoxy-2-((1-Methoxypropan-2-yl)oxy)propane
•    Dipropylene Glycol DiMethyl Ether(DPDM)
•    Bis(methoxypropyl) ether, Proglyde(R) DMM
•    Dipropylene glycol dimethyl ether,Bis(methoxypropyl) ether
•    Di(propylene glycol) dimethyl ether, mixture of isomers,Bis(methoxypropyl) ether, Proglyde DMM
•    Dipropylene glycol d
•    Proglyde(R) DMM
•    Di(propylene glycol) dimethyl ether, 99.5%, for synthesis, mixture of isomers
•    DipropyleneGlycolDimethylEther(mixtureofisomers)>
•    Di(propylene glycol) dimethyl ether, for synthesis, mixture of isomers
•    111109-77-4
•    11109-77-4
•    CH3OC3H6OC3H6OCH3
•    Oxygen Compounds
•    Organic Building Blocks
•    Ethers
•    Building Blocks
•    Ethers
•    Hydrophobic Polymers
•    Materials Science
•    Polymer Science
•    Polymers
•    Propylene Glycol Oligomers

Dipropylene glycol dimethyl ether
Agent Name
Dipropylene glycol dimethyl ether
Alternative Name
DMM
CAS Number
111109-77-4
Formula
C8-H18-O3
Major Category
Solvents
Dipropylene glycol dimethyl ether formula graphical representation
Synonyms
DMM; [Glycol Ethers Online] Propane, oxybis(methoxy-; [ChemIDplus] Proglyde DMM; [RTECS] Di(propylene glycol) dimethyl ether, mixture of isomers; Bis(methoxypropyl) ether; [Sigma-Aldrich MSDS] PROGLYDE DMM GLYCOL DIETHER; [Dow Chemical MSDS] UN1993
Category
Glycol Ethers (Glymes)
Description
Clear colorless liquid; [Sigma-Aldrich MSDS] Mild odor; [Dow Chemical MSDS]
Comments
A skin and strong eye irritant; [Sigma-Aldrich MSDS] May cause moderate eye irritation; Demonstrates limited potential to cause skin sensitization; Animal studies have shown effects on the adrenal gland, kidney, and liver, fetal toxicity at doses maternally toxic, and no evidence of teratogenicity, reproductive toxicity, or mutagenicity; [Dow Chemical MSDS] See "Monoglyme."

Common Glycol Ethers which we can offer :
Chemical Name CAS Number Chemical Name CAS Number
Diethylene glycol dimethyl ether 111-96-6
Ethylene glycol mono-butylether, also known as EGBE or 2-
Butoxyethanol
Diethylene glycol monobutyl ether acetate 124-17-4
Diethylene glycol monobutyl ether 112-34-5
Diethylene glycol monoethyl ether acetate 112-15-2
Diethylene glycol monoethyl ether 111-90-0
Diethylene glycol monohexyl ether 112-59-4
Diethylene glycol monomethyl ether acetate 629-38-9
Diethylene glycol monomethyl ether 111-77-3
Ethylene glycol dibutyl ether 112-48-1
Ethylene glycol diethyl ether 629-14-1
Ethylene glycol dimethyl ether 110-71-4
Ethylene glycol monoacetate 542-59-6
Ethylene glycol monobutyl ether acetate 112-07-2
Ethylene glycol monoethyl ether acetate 111-15-9
Ethylene glycol monoethyl ether 110-80-5
Ethylene glycol monohexyl ether 112-25-4
Ethylene glycol monomethyl ether acetate 110-49-6
Ethylene glycol monomethyl ether 109-86-4
Ethylene glycol monooctyl ether 10020-43-6
Ethylene glycol monophenyl ether 122-99-6
Ethylene glycol monopropyl ether 2807-30-9
Triethylene glycol 112-27-6
Triethylene glycol dimethyl ether 112-49-2
Triethylene glycol monoethyl ether 112-50-5
Triethylene glycol monomethyl ether 112-35-6


Product Description 
Dipropylene glycol DME is a colorless liquid with a mild, pleasant odor. It is completely miscible with most common organic solvents. 
However, it has limited solubility in water. 
Due to its chemical stability and the absence of reactive groups, Dipropylene glycol DME can be used as an inert, aprotic reaction medium, e.g. for organic reactions and polymerizations etc. 
Dipropylene glycol DME is not listed as a Hazardous Air Pollutant, has low toxicity, and offers an alternative to solvents being phased out as a result of the Clean Air Act. 
It is therefore used as environmentally friendly replacement for NMP (N-methyl pyrrolidone). 
Dipropylene glycol DME is used in solvent-based coatings and water-based polyurethane/ isocyanate coating systems e.g. as a coalescing agent or as solvent for the isocyanate prepolymer in 2c-PUDs. 
Effective paint and varnish-stripping formulations can be made by the combination of Dipropylene glycol DME with a protic solvent. 
Due to its chemical inertness, Dipropylene glycol DME may be used in strongly acidic or alkaline industrial cleaning product e.g. for the cleaning of metal surfaces. 
Dipropylene glycol DME can be used as a component in formulations designed to clean resin and polymeric-based optical lenses and associated lens molds. 
Due to its low toxicity it also finds application in cosmetic formulations e.g. nail polish removers. 
The solvent may be used to align liquid crystals during manufacture and to replace halogenated solvents used to clean 
LCDs and printed circuit boards. 
As an entrainer for aceotropic water removal, Dipropylene glycol DME is used in esterification reactions to yield clear resins. 
It is also used as cosolvent in aluminum pastes and as a coupling agent for agricultural formulations. 

Storage Advice 
Dipropylene glycol DME is supplied in road tankers, steel drums and IBCs. 
Glycol ethers and their derivatives may form peroxides in the presence of oxygen, and Dipropylene glycol DME may absorb moisture in the presence of air. 
Therefore, Dipropylene glycol DME is stabilized with 100 mg/kg 2,6-di-tert.-butyl-4-methylphenol (BHT). 
The product is hygroscopic and must be properly stored in order to prevent water absorption. 
This can be done by storing the product under a dry nitrogen blanket. 
If stored in a breathable tank, drying agents such as silica gel should be utilized. 
For further information please refer to the safety data sheet. 
Azeotropic Mixtures 
Dipropylene glycol DME (DPG DME) forms an azeotrope with water.

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