Why It Matters
PU foam, elastomer and CASE formulators need polyether and polyester polyols as the hydroxyl co-reactant with MDI/TDI.
Solution Approach
PU foam, elastomer and CASE formulators need polyether and polyester polyols as the hydroxyl co-reactant with MDI/TDI. 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 Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
Recommended Chemistries (4)
Polypropylene Glycol (PPG-26) Flotation Frother
CAS 25322-69-4
Glycols & Polyols
Non-silicone defoamer and process aid
Hydroxyl-terminated polypropylene-glycol polyether that reacts with isocyanate to build flexible PU foam/elastomer; hydrolysis-resistant
Full Details
Polyester polyol
Hydroxyl-terminated polyester co-reactant giving higher tensile, abrasion and solvent resistance in CASE and elastomer systems
Full Details
Methylene diphenyl diisocyanate (MDI)
CAS 101-68-8
Specialty Additives
Crosslinking / Curing
2206 (DIPHENYLMETHANE-4,4'-DIISOCYANATE) · Class Aromatic isocyanate that crosslinks with polyol hydroxyls to form the urethane network; partner
Physical Description: Diphenylmethane-4,4-diisocyanate is a light yel… Appearance: White to light yellow flakes Odor: Odorless
Full Details
Toluene diisocyanate (TDI)
CAS 26471-62-5
Specialty Additives
Crosslinking / Curing
Isocyanate for flexible-foam systems that reacts with polyol; partner
Full Details