PHOSFLEX T-BEP

Phosflex T-BEP is a commercial grade of tris(2-butoxyethyl) phosphate used as a plasticizer, solvent, and performance additive in industrial formulations, and Phosflex T-BEP is valued for improving flexibility, flow, and film formation in polymer systems.
Phosflex T-BEP is commonly used in coatings, inks, adhesives, and polymer processing where compatibility with binder systems and low-volatility plasticization are required, and Phosflex T-BEP can also provide foam-control benefits in selected high-shear processes.
Phosflex T-BEP is typically supplied as a clear, colorless liquid, and Phosflex T-BEP performance depends on purity, water content, viscosity grade, dosage, and compatibility with the complete formulation.

CAS Number: 78-51-3
EC Number: 201-122-9
Molecular Formula: C18H39O7P
Molecular Weight: 398.47 g/mol

Synonyms: Phosflex T-BEP, Tris(2-Butoxyethyl) Phosphate, TBEP, Tributoxyethyl Phosphate, Tri(2-Butoxyethyl) Phosphate, Phosphoric Acid Tris(2-Butoxyethyl) Ester, Amgard TBEP (equivalent naming), Kronitex KP-140 (equivalent naming), Organophosphate Plasticizer, TBEP Plasticizer Grade, TBEP Coalescent Additive, Tris(2-Butoxyethyl) Phosphate Plasticizer, Phosflex T-BEP, Phosflex TBEP, Phosflex T BEP, T-BEP, TBEP, Phosflex Tris(2-butoxyethyl) Phosphate, Phosflex Tri(2-butoxyethyl) Phosphate, Phosflex Tributoxyethyl Phosphate, Phosflex Tri Butoxyethyl Phosphate, Phosflex Tris Butoxyethyl Phosphate, Phosflex Phosphate Ester, Phosflex Butoxyethyl Phosphate Ester, Phosflex Phosphoric Acid Ester, Phosflex Trialkyl Phosphate, Phosflex Organophosphate Ester, Phosflex Phosphoric Acid Tris(2-butoxyethyl) Ester, Phosflex Phosphoric Acid Tributoxyethyl Ester, Phosflex Orthophosphate Ester, Phosflex Tris(2-butoxyethyl) Orthophosphate, Phosflex Butoxyethanol Phosphate Ester, Phosflex 2-Butoxyethyl Phosphate Ester, Phosflex Triester of Phosphoric Acid and 2-Butoxyethanol, Phosflex Flame Retardant Plasticizer, Phosflex Flame Retardant Additive, Phosflex Plasticizer, Phosflex Specialty Plasticizer, Phosflex Low-Volatility Plasticizer, Phosflex Polymer Additive, Phosflex PVC Plasticizer, Phosflex Rubber Plasticizer, Phosflex Resin Additive, Phosflex Coating Additive, Phosflex Floor Polish Additive, Phosflex Acrylic Polish Additive, Phosflex Textile Auxiliary, Phosflex Lubricant Additive, Phosflex Hydraulic Fluid Additive, Phosflex Defoamer Additive, Phosflex Antifoam Additive, Phosflex Solvent Additive, Phosflex Performance Additive, Phosflex Functional Additive, Phosflex Industrial Phosphate Ester, Phosflex Commercial Phosphate Ester

APPLICATIONS

Phosflex T-BEP is used as a plasticizer in PVC to improve flexibility, softness, and low-temperature performance.
Phosflex T-BEP is incorporated into flexible vinyl formulations to reduce brittleness and improve elongation.
Phosflex T-BEP is used in PVC compounds to support smoother processing and improved melt flow.

Phosflex T-BEP is used in waterborne acrylic coatings as a coalescing and film-forming aid in compatible formulations.
Phosflex T-BEP is incorporated into architectural coatings to support uniform film formation and improved appearance.
Phosflex T-BEP is used in industrial coatings to improve leveling, reduce defects, and enhance flow.

Phosflex T-BEP is used in printing inks to adjust viscosity, flow, and film properties in selected formulations.
Phosflex T-BEP is incorporated into gravure and flexographic inks to help balance drying and laydown behavior.
Phosflex T-BEP is used in overprint varnishes to improve smoothness and reduce surface defects.

Phosflex T-BEP is used in adhesives and sealants to improve flexibility and reduce brittleness in compatible binder systems.
Phosflex T-BEP is incorporated into pressure-sensitive adhesives to tune tack, cohesion, and peel performance.
Phosflex T-BEP is used in construction adhesives where plasticization supports durability and crack resistance.

Phosflex T-BEP is used in pigment dispersions to support wetting and help reduce entrapped air in compatible systems.
Phosflex T-BEP is incorporated into high-shear mixing operations to reduce foam persistence and improve process stability.
Phosflex T-BEP is used as a processing aid in coating manufacture where foam control and improved flow are beneficial.

Phosflex T-BEP is used in specialty plastics and elastomer systems in selected applications to tune hardness, flexibility, and processing behavior.
Phosflex T-BEP is incorporated into filled formulations to improve wetting and dispersion of mineral fillers.
Phosflex T-BEP is valued because Phosflex T-BEP provides efficient plasticization and formulation flexibility across coatings, inks, adhesives, and polymer systems.

Phosflex T-BEP is used as a plasticizer in PVC to improve flexibility and softness.
Phosflex T-BEP supports lower glass-transition temperature in vinyl formulations.
Phosflex T-BEP helps improve low-temperature performance in flexible PVC compounds.

Phosflex T-BEP is used in vinyl flooring formulations to enhance resilience and processing.
Phosflex T-BEP supports improved indentation recovery in some flooring systems.
Phosflex T-BEP helps improve flexibility balance in vinyl tile and sheet products.

Phosflex T-BEP is used in wire and cable PVC compounds to improve flexibility and handling.
Phosflex T-BEP supports easier extrusion and stable processing in some cable recipes.
Phosflex T-BEP helps improve bend performance in flexible wire insulation systems.

Phosflex T-BEP is used in synthetic leather and coated fabric formulations as a plasticizer.
Phosflex T-BEP supports softness and drape in coated textile products.
Phosflex T-BEP helps improve adhesion and flexibility in some coating constructions.

Phosflex T-BEP is used in polyurethane systems as a plasticizing additive in some formulations.
Phosflex T-BEP supports improved flexibility and reduced brittleness in some PU coatings.
Phosflex T-BEP helps adjust hardness and feel in certain polyurethane products.

Phosflex T-BEP is used in paints and coatings to improve film flexibility in some formulations.
Phosflex T-BEP supports coalescence and reduced cracking in some coating systems.
Phosflex T-BEP helps improve leveling and film integrity under stress in some finishes.

Phosflex T-BEP is used in industrial coatings for metal and wood where flexibility is needed.
Phosflex T-BEP supports improved impact resistance in some coating designs.
Phosflex T-BEP helps reduce microcracking under temperature cycling in some applications.

Phosflex T-BEP is used in printing inks as a plasticizer and flow modifier in some systems.
Phosflex T-BEP supports improved ink film flexibility and rub resistance in some formulations.
Phosflex T-BEP helps improve pigment wetting and dispersion in certain ink vehicles.

Phosflex T-BEP is used in adhesives to improve flexibility and reduce brittleness in some formulations.
Phosflex T-BEP supports better peel performance in selected adhesive systems.
Phosflex T-BEP helps improve tack and workability in some pressure-sensitive adhesives.

Phosflex T-BEP is used in sealants and caulks to improve flexibility in some formulations.
Phosflex T-BEP supports improved joint movement capability in selected sealant systems.
Phosflex T-BEP helps reduce cracking and shrink stress in some cured sealants.

Phosflex T-BEP is used as a flame-retardant additive in certain polymer formulations.
Phosflex T-BEP supports reduced flammability by contributing phosphorus-based flame retardancy.
Phosflex T-BEP helps improve compliance with some fire performance targets when properly formulated.

Phosflex T-BEP is used in flexible foams as an additive for flame retardancy in some systems.
Phosflex T-BEP supports improved fire performance in selected polyurethane foam applications.
Phosflex T-BEP helps balance flame retardancy with foam physical properties in some designs.

Phosflex T-BEP is used in textile backcoatings and polymer coatings where flame retardancy is desired in some applications.
Phosflex T-BEP supports improved flame resistance in certain coated fabrics.
Phosflex T-BEP helps maintain flexibility while adding flame retardant function in some systems.

Phosflex T-BEP is used in rubber and elastomer compounds as a plasticizing additive in some formulations.
Phosflex T-BEP supports improved processability and flexibility in selected rubber mixes.
Phosflex T-BEP helps reduce hardness and improve low-temperature properties in some elastomers.

Phosflex T-BEP is used in floor polishes and floor finishes as a leveling and film-forming aid in some formulations.
Phosflex T-BEP supports improved gloss development and smoother appearance in some polish systems.
Phosflex T-BEP helps improve durability and scuff resistance of some floor finish films.

Phosflex T-BEP is used in wax emulsions and maintenance products to improve spread and film properties in some systems.
Phosflex T-BEP supports improved wetting on surfaces in selected maintenance formulations.
Phosflex T-BEP helps reduce streaking and improve uniformity in some floor care products.

Phosflex T-BEP is used in industrial cleaners and degreasers as a solvent-like additive in some formulations.
Phosflex T-BEP supports dissolution of certain organic soils in some cleaning systems.
Phosflex T-BEP helps improve cleaning performance on hard surfaces in some products.

Phosflex T-BEP is used as a solvent or coupling agent for resins in some coating and ink formulations.
Phosflex T-BEP supports compatibility between polar and nonpolar components in some systems.
Phosflex T-BEP helps stabilize formulations by improving component miscibility in some blends.

Phosflex T-BEP is used in PVC plastisol formulations to adjust viscosity and gel behavior in some applications.
Phosflex T-BEP supports improved flow and leveling in some plastisol coatings.
Phosflex T-BEP helps improve flexibility of cured plastisol films in some systems.

Phosflex T-BEP is used in dip coating and spray coating plastisol processes in some industries.
Phosflex T-BEP supports smoother coating build and reduced pinholing in some applications.
Phosflex T-BEP helps improve cured film toughness in some coated parts.

Phosflex T-BEP is used in specialty chemical formulations where phosphate esters provide solvency and plasticization.
Phosflex T-BEP supports tailoring of viscosity and flexibility in multi-component products.
Phosflex T-BEP helps optimize performance where both plasticizer and flame-retardant functions are beneficial.

Phosflex T-BEP is used in product development to tune flexibility, gloss, and durability targets in coatings and floor finishes.
Phosflex T-BEP supports formulation screening for compatibility with resins and additives.

Phosflex T-BEP is used in product development to optimize migration resistance and permanence in flexible PVC in some designs.
Phosflex T-BEP supports screening versus alternative phosphate ester plasticizers.
Phosflex T-BEP helps guide selection of optimal plasticizer blends for long service life.

Phosflex T-BEP is used in manufacturing troubleshooting to address cracking, brittleness, or poor leveling in some formulated products.
Phosflex T-BEP supports improved film flexibility and flow when compatibility is verified.
Phosflex T-BEP helps stabilize product performance under temperature cycling and mechanical stress.

Phosflex T-BEP is used in quality control to verify viscosity, color, and plasticizer performance consistency across lots.
Phosflex T-BEP supports stable performance in flooring, coatings, and polymer compounding.
Phosflex T-BEP helps reduce variability by ensuring consistent raw material specifications.

Phosflex T-BEP is used in education and training as an example of phosphate ester plasticizers and multifunctional additives.
Phosflex T-BEP supports teaching about plasticization, solvency, and flame retardant mechanisms.
Phosflex T-BEP helps illustrate how additive selection influences polymer properties and processing.

DESCRIPTION

Phosflex T-BEP is a branded tris(2-butoxyethyl) phosphate product, and Phosflex T-BEP is an organophosphate ester built from butoxyethanol-derived groups attached to a phosphate center.
Phosflex T-BEP behaves as a relatively low-volatility, oil-like liquid, and Phosflex T-BEP can plasticize polymers by reducing intermolecular forces, improving flexibility and reducing brittleness of finished films.
Phosflex T-BEP can also influence surface tension and wetting, and these effects can improve pigment wetting, leveling, and film uniformity in coatings and inks.

Phosflex T-BEP is typically compatible with many organic binders, but compatibility testing is required because phase separation can occur in some resin or solvent packages.
Phosflex T-BEP may provide some flame-retardant contribution as an organophosphate additive, but performance depends on the complete formulation and regulatory requirements for the end use.
Phosflex T-BEP should be used according to applicable regulations for the target market because organophosphate additives may have use restrictions depending on product type and region.

Phosflex T-BEP is typically supplied as a clear, colorless liquid, and Phosflex T-BEP should be protected from contamination to maintain consistent performance.
Phosflex T-BEP should be stored in tightly closed containers and kept away from strong oxidizers to minimize degradation risk.
Phosflex T-BEP should be handled with good industrial hygiene practices because repeated contact can cause irritation in sensitive individuals.

Phosflex T-BEP is a trade name commonly used for tris(2-butoxyethyl) phosphate (TBEP), an organic phosphate ester.
Phosflex T-BEP is typically supplied as a clear to pale liquid with controlled viscosity and low odor in many industrial grades.
Phosflex T-BEP is used primarily as a plasticizer and, in some systems, as a flame-retardant additive.

Phosflex T-BEP has good compatibility with many polymers and resin systems compared with some alternative plasticizers.
Phosflex T-BEP can help improve flexibility, toughness, and low-temperature performance in flexible polymer products.
Phosflex T-BEP may also influence viscosity, leveling, and film formation depending on the formulation.

Phosflex T-BEP is widely associated with applications in PVC, coatings, inks, adhesives, sealants, and floor care formulations.
Phosflex T-BEP can support improved gloss and scuff resistance in some floor finish systems.
Phosflex T-BEP can contribute phosphorus content that supports reduced flammability in certain polymer designs.

Phosflex T-BEP performance depends on dosage, resin type, processing temperature, and interactions with other additives.
Phosflex T-BEP should be selected based on compatibility testing to avoid haze, exudation, or instability in finished products.
Phosflex T-BEP can be formulated into blends with other plasticizers to achieve specific hardness and migration profiles.

Phosflex T-BEP should be handled with good industrial hygiene practices to minimize unnecessary exposure.
Phosflex T-BEP should be stored in tightly closed containers to prevent contamination and moisture ingress.
Phosflex T-BEP should be kept away from excessive heat and ignition sources according to standard chemical storage practices.

Phosflex T-BEP is valued for multifunctional behavior that combines plasticization with useful solvency and processing effects.
Phosflex T-BEP grade selection typically considers purity, color, odor, and performance consistency.
Phosflex T-BEP is commonly supplied for industrial use in drums, IBCs, or bulk deliveries depending on volume.

Phosflex T-BEP is often chosen when a balance of flexibility, durability, and formulation compatibility is required.
Phosflex T-BEP is considered a versatile additive across plastics, coatings, and maintenance-product industries.
Phosflex T-BEP should be evaluated against local regulatory and application requirements before use.

PROPERTIES

Chemical Formula: C18H39O7P
Molecular Weight: 398.47 g/mol
Common Name: Phosflex T-BEP
Chemical Type: Organophosphate ester; plasticizer; coalescent; process aid
Appearance: Clear, colorless liquid
Odor: Mild characteristic odor
Solubility: Insoluble to slightly soluble in water; soluble in many organic solvents; miscibility depends on system design
Density: About 1.0 g/cm³ (typical; grade dependent)
Viscosity: Moderate; temperature dependent
Volatility: Relatively low compared with many light solvents (grade dependent)
Stability: Stable under normal storage; avoid strong oxidizers and excessive heat
Storage Temperature: 5–30°C, tightly closed, dry, away from direct sunlight
Shelf Life: Typically 12–36 months in original sealed packaging (supplier dependent)

FIRST AID

Inhalation:
Move to fresh air if vapors or mists are inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing aerosols during spraying or high-shear operations that generate mist.

Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.

Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.

Ingestion:
Rinse mouth with water and do not induce vomiting.
Seek medical attention if discomfort occurs or if a significant amount is swallowed.
Never give anything by mouth to an unconscious person.

Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care as needed.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including chemical-resistant gloves and safety glasses.
Avoid prolonged skin contact and avoid splashing into eyes.
Use closed transfer or controlled pouring to reduce mist formation and spills.

Ventilation:
Use general ventilation for normal handling.
Use local exhaust if heating, spraying, or high-speed mixing may generate mists.
Avoid aerosol formation in enclosed spaces without adequate airflow.

Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.
Keep away from strong oxidizers, strong acids, and strong bases that may cause decomposition or incompatibility.
Protect from direct sunlight and excessive heat to maintain stable viscosity and quality.

Spill and Leak Procedures:
Contain spill and absorb with inert material.
Clean residue promptly because surfaces can become slippery.
Dispose of waste according to local regulations and facility procedures.

Handling Precautions:
Verify compatibility with the binder and solvent package because Phosflex T-BEP can plasticize strongly and may soften certain films if overdosed.
Optimize dosage because Phosflex T-BEP can affect drying, hardness, and block resistance in coatings depending on formulation balance.
Rotate stock using FIFO practices to maintain consistent quality and predictable processing performance.