PRODUCTS

K-FLEX 500P

CAS-Number: Chemical Name: Weight%:
120-55-8 Diethylene glycol dibenzoate 55-<65
27138-31-4 Dipropylene glycol dibenzoate 35-<45

K-Flex 500P is a blend of diethylene glycol dibenzoate and dipropylene glycol dibenzoate that is slightly rich in the diethylene glycol dibenzoate component.
Plasticizing Coalescent with very slow evaporation and very low solubility in water.
K-Flex 500P is blend of DEGDB and DPGDB, slightly rich in the DEGDB component.
K-Flex 500P is designed for coatings or other applications where ultra-low levels of VOCs are desired.

Benzoate plasticizers include dibenzoates and monobenzoates, such as diethylene glycol dibenzoate (DEGDB) and dipropylene glycol dibenzoate (DPGDB) esters that have been used in a wide variety of polymer applications, including in the vinyl industry.
DEGDB is an excellent plasticizer, but due to its high freeze point, blends with DPGDB were also developed to capitalize on the utility and lower cost of DEGDB.
Several years ago a blend of DEGDB, DPGDB and triethylene glycol dibenzoate (TEGDB) was introduced as a high solvating dibenzoate blend.

More recently, a new dibenzoate triblend was introduced as a low VOC plasticizer/coalescent for use in plastisols, adhesives, architectural paint and coatings, and polishes, among other applications.
This triblend, comprising DEGDB, DPGDB and 1,2-propylene glycol dibenzoate (PGDB) in various ratios and sold as K-FLEX 975P, has been found to be very versatile for a variety of applications, based on its broad range of compatibilities with polymers utilized in the coatings industry (for example, in vinyl acrylic, acrylic and styrene acrylic types) and possesses good solvating properties and low volatility.

Its performance properties compare favorably to traditional high solvating phthalate plasticizers as well as traditional benzoate ester plasticizers.
Results set forth herein show the triblend to be a high solvating plasticizer that enhances the performance properties of 1,2-cyclohexane dicarboxylate esters, such as 1,2-cyclohexane dicarboxylic acid diisononyl ester, commercially available through a number of manufacturers.

Monobenzoate esters known to be useful as plasticizers include: isodecyl benzoate, isononyl benzoate, and 2-ethylhexyl benzoate.
The use of 2-ethylhexyl benzoate in a blend with DEGDB and diethylene glycol monobenzoate is described.
The use of isononyl esters of benzoic acid as film-forming agents in compositions such as emulsion paints, mortars, plasters, adhesives, and varnishes.

The K-Flex dibenzoate plasticiser product line contains a variety of high solvating dibenzoate plasticisers for PVC applications.
K-Flex 850P and K-Flex 975P have found broad utility as fast fusers in numerous applications and have served as tools for formulators to increase fusion speed, compatibility, and performance when switching from traditional phthalates to the less compatible phthalate alternatives.

In addition, the K-Flex plasticisers impart exceptional stain and extraction resistance, especially versus oily solvents.
As little as 15% DOTP can be offset using K-Flex 850P or K-Flex .
The plasticizer of focus is propylene glycol dibenzoate (K-FLEX PG).
When blended with two traditional dibenzoates, it is part of a product called K-FLEX 975P, diethyl phthalate plasticizer.

Diethyl phthalate (C12H14O4), or DEP is a diethyl ester of phthalic acid.
DEP is used as a plasticizer in consumer goods, including plastic packaging films, cosmetics, solvent for fragrances, a surface lubricant in food and pharmaceutical packaging, and in tubing used for medical purposes.

K-FLEX plasticizers optimize manufacturing processes and the properties of end-products.
They are highly compatible with polar polymers in water-based adhesive systems and they improve the film formation of paints and coatings.
In PVC production, the fast-gelling dibenzoates can speed up processes, helping formulators achieve greater efficiency.
K-FLEX plasticizers have become standard plasticizers for adhesive products.
They improve the processability of many polar polymers used in water-based latex and hot-melt adhesives.

They further lower the glass transition temperature of the binder and thus enhance its adhesiveness.
K-FLEX plasticizers are mainly used in protective coatings such as underbody protection and seam sealers.
They are more effective at gelling PVC than common standard plasticizers.
As a result, they allow shorter cycle times or lower processing temperatures, making production more efficient.
In paints and coatings, K-FLEX dibenzoates are excellent at increasing film-formation, even at lower temperatures.

This means that polymers become solid at a certain temperature and no longer flow together, which impairs film-formation.
Plasticizers ensure that this temperature, the so-called minimum film formation temperature, can be reduced.
Thus, these products can even be processed at room temperature.
K-FLEX dibenzoates are the go-to alternative to volatile solvents.

The K-FLEX line of low-volatile coalescing agents is highly compatible with the typical polymeric binders used in these applications, such as acrylates, vinyl and styrene acrylates, polyvinyl acetate and ethylene vinyl acetate.
K-FLEX coalescing agents help produce paints and coatings with a superior surface appearance and high durability.
In order to create a paper surface that could be used in packaging, for example, additives are needed.
They enhance the coating process and improve the resulting products.

K-FLEX products for coating paper and cardboard are safe for use in packaging with food contact.
K-FLEX products provide optimum performance in sealants and joint compounds.
This includes articles based on polyacrylates, polyvinyl acetate, their copolymers and silane-terminated sealants.
For reactive polyurethane applications, low hydroxyl dibenzoates have been developed to ensure consistency in the production of shelf-stable sealants.

In polysulfide sealants, the dibenzoates serve as an alternative to phthalates, which have been used up to now.
K-FLEX dibenzoates are known for their excellent gelling properties in a wide range of polymers, including PVC.
As additional plasticizers, they can supplement moderately-gelling standard plasticizers.
In both cases, this results in lower processing temperatures and/or shorter processing times.

The flexible PVC products produced show better stain resistance and create high wear-proof surfaces.
Typical applications are floor and wall coverings, artificial leather and gloves.
Nail care and depilatory waxes are just some of the personal care products that our additives are used for.
Personal care is one field where our products with a low ecological footprint are truly appreciated.

K-FLEX plasticizers are an excellent phthalate-free solution for formulators looking to satisfy both legislative requirements and consumer demand.
K-FLEX plasticizers offer equal or superior performance over other recognized plasticizers and coalescents in a wide range of applications including adhesives, caulks, sealants, coatings, and vinyl/plastisol applications

USES and APPLICATIONS of K-FLEX 500P:
-K-Flex 500P is used Additives , Coalescents , Coalescents , Constructions , Paints and Varnishes
-Offering excellent scrub resistance and gloss, K-Flex 500P aids in the development of desirable performance characteristics while offering improved handling due to low temperature flexibility.

-K-Flex 500P's performance and value make it a viable replacement to higher-volatility coalescents such as TMPDMIB (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate) or even low-VOC types such as triethylene glycol di-2-ethylhexanoate.
-K-Flex 500P was created to lower the VOC content of a coating more than other K-Flex plasticizers.
-K-Flex 500P was specifically designed for the coatings industry where very low VOC content is required or other application areas where low VOC content is critical.

-Like other K-Flex plasticizers, the K-Flex 500P will offer the paint formulator a viable option to the more volatile coalescents such as 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate or even low VOC types such as triethylene glycol di-2-ethylhexanoate.
-K-Flex 500P can significantly reduce VOCs.
-Like other dibenzoates, K-Flex 500P can be used in adhesives, plastisols and other applications requiring a polar plasticizer with a lower VOC content.

-K-Flex 500P is a dibenzoate coalescent for environmentally friendly, low-VOC paints.
-Specifically designed for the coatings industry, K-Flex 500P provides formulators with a solution that meets regulations and consumer demands for lower VOC content, without sacrificing performance and value.
-K-Flex 500P is also used as a non-phthalate plasticizer in adhesives, plastisols, and other applications requiring a polar plasticizer with a lower VOC content.

-The lowest VOC coalescent, K-Flex 500P is an excellent choice for architectural coatings where excellent gloss, scrub, block, and freeze-thaw characteristics are all desired features.
Exhibits equivalent efficiency to TMPDMIB.

-Coalescent plasticizer with very slow evaporation and very low solubility in water.
Particularly suitable for the formulation of class A + IAQ paint products.
-K-Flex 500P is a polar dibenzoate plasticizer and coalescent for environmentally friendly, low-VOC paints.
-K-Flex 500P provides improved scrub, high gloss, excellent blocking and reduces volatile organic compounds.
-Offers excellent scrub resistance, gloss with improved handling due to low temperature flexibility.

-K-Flex 500P is highly recommended for acrylic- & nitrocellulose lacquers, interior- & exterior latex paints, industrial- & special purposecoatings.
-K-Flex 500P will offer the paint formulator a viable option to more volatile coalescents such as 2,2,4-trimethyl-1,3-pentadiol monoisobutyrate or even low VOC types such as triethylene glycol di-2-ethylhexanoate.
-Complies with FDA listing 21 CFR 175.105, 21 CFR 176.170 and 21 CFR 176.180.

-K-Flex 500Poffers excellent scrub resistance and gloss and aids in the development of desirable performance characteristics while offering improved handling due to low temperature flexibility.
-K-Flex 500P's performance and value make it a viable replacement for higher-volatility coalescents such as TMPDMIB (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate) or even low-VOC types such as triethylene glycol di-2-ethylhexanoate.

-K-Flex 500P is highly recommended for interior and exterior latex paints, industrial coatings, nitrocellulosic and acrylic lacquers, and special purpose coatings.
-K-Flex 500P is also effective in direct-to-metal coatings such as primers.

-K-Flex 500P is Blend of DEGDB and DPGDB, slightly rich in the DEGDB component.
Designed for coatings or other applications where ultra-low levels of VOCs are desired.
-K-Flex 500P was created to lower the VOC content of a coating more than other K-Flex plasticizers.
-K-Flex 500P was specifically designed for the coatings industry where very low VOC content is required or other application areas where low VOC content is critical.

-K-FLEX 500P is reportedly the lowest VOC coalescent in the product line, designed for architectural coatings where very low VOCs and excellent gloss, scrub, block, and freeze-thaw characteristics are all desired features.
-K-FLEX dibenzoate esters are reportedly highly effective, low VOC, non-phthalate, non-alkyl phenol ethoxylate (APE-free), and are compatible with a range of polymers, including acrylic, styrene acrylic, vinyl acetate (PVA), vinyl acetate-ethylene (VAE), and polyvinyl chloride (PVC) systems.

-K-FLEX 500P reportedly has a VOC level of 0.9% when tested according to ASTM D 2369.
The new product can exhibit equivalent efficiency to traditional high-VOC coalescents, such as 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (TMPDMIB), so it can be used at similar levels in the formulation.
-K-Flex 500P is particularly suitable for the formulation of paint products in class A+ IAQ.
-K-flex 500p a dibenzoate blend designed for coatings or other applications where ultra low levels of vocs are desired.

-Paints & Coatings:
Concrete and Metal Primer:
Effective coalescent in direct-to-metal coatings
-Paints & Coatings:
Exterior Latex Paint:
Ultra-low VOC, highly recommended coalescent for exterior paints

-Paints & Coatings:
Industrial Coatings:
Ultra-low VOC, highly recommended coalescent for industrial coatings applications
-Paints & Coatings:
Interior Latex Paint:
Ultra-low VOC, highly recommended coalescent for interior latex paints

-Paints & Coatings:
Lacquers – Nitrocellulosic & Acrylic:
Ultra-low VOC, highly recommended coalescent for nitrocellulosic and acrylic lacquers
-Paints & Coatings:
Special Purpose Coatings:
Ultra-low VOC, highly recommended coalescent for special purpose coatings applications

-K-FLEX produces flexible elastomeric foam, polyethylene and mineral wool insulating pipes and sheets.
Self-adhesive versions are also available.
A variety of product types, from tubing to flat sheeting, is available with specific technical characteristics for individual applications.

Whenever applied outdoors K-FLEX products must be covered or clad for UV and wheater protection (e.g. Aluminum, steel, K-FLEX AL CLAD, K-FLEX IC CLAD or K-FLEX IN CLAD)
Where the tubing has to be cut for applications purposes, its thermal insulating characteristics are maintained using the proper K-FLEX glue.
With large diameter pipes or conduits, insulation is carried out using elastomeric sheets cut to size.

-K-FLEX recommends that fitting has to be carried out to the highest possible standards to optimise the insulation effectiveness
-K-FLEX ADHESIVES:
K-FLEX provides different types of adhesive:
K-414 for the most common civil application K-420 recomended for high performance insulation in both civil and oil&gas project K-425 recomended for high temperature insulation with SOLAR HT insulation product.

-K-FLEX THINNER:
It is recommended that surfaces to be insulated should first be cleaned with K-FLEX thinner, which is suitable for use with K-FLEX glue.
The glue will adhere perfectly to surfaces cleaned with the proprietory thinner.
K-FLEX thinner can also be used to clean tools (brush, spatula, etc.).

-K-FLEX FINISH:
K-FLEX finish is an acrylic paint that can be diluted in water to protect insulation both indoors and outdoors.
The paint is environmentally safe and odorless, making it particularly suitable for use in confined spaces.
It gives a professional, durable finish.

It dries rapidly, and provides excellent coverage.
When used as a primer, subsequent layers of white paint retain their color even in dark surroundings.
Colors are fade resistant.

-K90 ELBOWS and “TEES”:
A useful accessories pre-cut in the thickness and diameter required.
-K-FLEX INSULATED PIPE SUPPORTS:
Specifically designed to ensure that thickness of the insulating material is absolutely correct, especially in the fixing points.

-K-FLEX ADHESIVE INSULATING TAPE:
Special, 3mm thick, selfadhesive, 5 cm wide insulating tape for covering gaps or sealing insulated sections.
-K-FLEX GLUE DISPENSER:
It facilitates the glueing of the surface avoiding the continuous dipping of the brush in the can.
The controlled flow of the adhesive allows proper and regular quantity on the surface to glue.

PHYSICAL and CHEMICAL PROPERTIES of K-FLEX 500P:
Form: Liquid
pH: Not Available
Appearance: Colorless to light yellow
Relative density: 1.15
Odour: Slight aromatic
Partition coefficient (n- octanol/water): >3 - <4
Odour threshold: Not Available
% Volatile by weight: 1.2%
Solubility in water: Negligible

VOC: 1.2% ASTM D2369
Evaporation rate: <1
Boiling point °C: 236°C @ 5 mm Hg; >350°C @ 760 mm Hg
Vapour pressure: <0.1 mm Hg @ 20 °C
Boiling point °F: 457°F @ 5 mm Hg; >662°F @ 760 mm Hg
Vapour density: 11.3 (Air=1)
Flash point: 232 °C (450 °F) ASTM D-92
Viscosity: 93 cSt @ 25°C
Autoignition temperature: Not Available

Melting point/Freezing point: 0°C (32°F)
Flammability (solid, gas): Not Applicable (liquid)
Oxidising properties: Not oxidizing
Flammability or explosive limits:
LFL/LEL: Not Available
Explosive properties: Not explosive
UFL/UEL: Not Available
Decomposition temperature: Not Available
Surface tension: 44.4 dynes/cm @ 25°C (ASTM D1331)
Other information: Amounts specified are typical and do not represent a specification.

Boiling Point (5 mm Hg,°C): 236
Density, ASTM D1475, 25°C g/ml: 1.15
Density, ASTM D1475 ,25°C lbs/gal: 9.6
Flash Point, ASTM D92, °C: 232
Freeze Point, °C: 0
Glass Point, by DSC, °C: -54
Moisture Content, %: 0.02
Refractive Index, 25°C: 1.5363

Solubility, in water, %: 0.09
Solubility, water in %: 0.61
Solubility Parameter, Small’s Hildebrands: 9.8
Specific Gravity, 25/25°C: 1.15
Surface Tension, ASTM D1331, 25°C, dynes/cm: 44.4
Vapor Pressure, 25°C (extrapolated), mmHg: 1.0 x 10-8
Viscosity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S: 107
Viscosity, Kinematic, 25°C, cSt: 93
VOC, ASTM D2369, %: 0.9

FIRST AID MEASURES of K-FLEX 500P:
-Description of first aid measures:
*Eye contact:
Any material that contacts the eye should be washed out immediately with water.
Get medical attention if symptoms occur.

*Skin contact:
Wash the affected area thoroughly with plenty of soap and water.
Get medical attention if symptoms occur.

*Inhalation:
If affected, remove to fresh air.
Get medical attention if symptoms occur.

*Ingestion:
Do not induce vomiting.
Rinse out the mouth with water.
Get medical attention immediately.

*Protection of first aid responders:
Wear proper personal protective clothing and equipment.

-Indication of any immediate medical attention and special treatment needed:
Treat symptomatically.

ACCIDENTAL RELEASE MEASURES of K-FLEX 500P:
-Environmental precautions:
Do not flush liquid into public sewer, water systems or surface waters.

-Methods and material for containment and cleaning up:
Wear proper personal protective clothing and equipment.
Absorb spill with an inert material.
Change contaminated clothing and launder before reuse.

FIRE FIGHTING MEASURES of K-FLEX 500P:
-Extinguishing media:
*Suitable:
Use water spray, ABC dry chemical, foam or carbon dioxide.
Water or foam may cause frothing.
Use water to keep fire-exposed containers cool.
Water spray may be used to flush spills away from exposures.

*Unsuitable:
None known.

EXPOSURE CONTROLS/PERSONAL PROTECTION of K-FLEX 500P:
-Exposure controls:
--Individual protection measures, such as personal protective equipment:
*Eye/face protection:
Wear eye protection.

*Skin and body protection:
Use good laboratory/workplace procedures including personal protective clothing:
labcoat, safety glasses and protective gloves.

*Respiratory protection:
Respiratory protection is not needed with proper ventilation.

*Further information:
Eyewash fountains and safety showers are recommended in the work area.

HANDLING and STORAGE of K-FLEX 500P:
-Precautions for safe handling:
As with any chemical product, use good laboratory/workplace procedures.
Wash thoroughly after handling this product.
Always wash up before eating, smoking or using the facilities.
Wash contaminated clothing before reuse.

-Conditions for safe storage, including any incompatibilities:
Store cool and dry, under well-ventilated conditions.
Do not store in open, unlabeled or mislabeled containers.
Keep container closed when not in use.
Do not reuse empty container without commercial cleaning or reconditioning.

STABILITY and REACTIVITY of K-FLEX 500P:
-Reactivity:
None known.

-Chemical stability:
This product is stable.

-Possibility of hazardous reactions:
Hazardous polymerization will not occur.