Why It Matters
Flexible-PVC and rubber compounders dose plasticizer esters by the tote and isotank to solvate the resin and hit a target durometer and low-temperature flexibility. Many are actively migrating off ortho-phthalates (DEHP/DBP) to non-phthalate DOTP and bio-based ESBO/citrates to meet REACH, CPSIA and food-contact requirements
Solution Approach
Flexible-PVC and rubber compounders dose plasticizer esters by the tote and isotank to solvate the resin and hit a target durometer and low-temperature flexibility. Many are actively migrating off ortho-phthalates (DEHP/DBP) to non-phthalate DOTP and bio-based ESBO/citrates to meet REACH, CPSIA and food-contact requirements RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (6)
Dioctyl Terephthalate (DOTP)
CAS 6422-86-2
Specialty Additives
Plasticizing
Non-ortho-phthalate terephthalate diester; solvates PVC chains to lower Tg and durometer and serves as the leading regulatory-safe drop-in replacement for DEHP
Physical Description: NKRA; Pellets or Large Crystals; Liquid Boiling Point: 383 °C Melting Point: -48 °C
Full Details
Diisononyl Phthalate (DINP)
CAS 28553-12-0
Specialty Additives
Lubrication
High-molecular-weight branched-C9 ortho-phthalate; low volatility gives good permanence at the high loadings used for soft flexible PVC
Physical Description: Di-isononyl phthalate is an oily colorless liqu… Appearance: Colorless liquid Boiling Point: 78 °C at 760 mmHg
Full Details
Epoxidized Soybean (ESBO)
CAS 8013-07-8
Specialty Additives
Emolliency
Bio-based secondary plasticizer and co-stabilizer; the epoxide rings scavenge HCl liberated during PVC processing while adding flexibility
Full Details
Triethyl Citrate
CAS 77-93-0
Specialty Additives
Plasticizing
Citrate-ester non-phthalate plasticizer used where regulatory-sensitive, food-contact-grade flexibility is required
Physical Description: practically colourless, oily liquid; bitter tas… Appearance: Colorless, mobile liquid Odor: Fruity odor
Full Details
Acetyl Tributyl Citrate (ATBC)
CAS 77-90-7
Non-phthalate citrate ester with higher permanence than triethyl citrate; the standard choice for toy and food-contact flexible PVC (source on demand)
Full Details
Dioctyl Adipate (DOA)
CAS 103-23-1
Adipate ester with a low glass-transition contribution, delivering cold-flex low-temperature flexibility for films and tubing (source on demand)
Full Details