NGCNext Generation Chemical

NGC Ester polyester polyols.

22 aliphatic grades for coatings, adhesives, sealants, elastomers, TPU and footwear, and 21 aromatic grades for rigid PUR and PIR foam. Made by our family-run manufacturing partner in India, supplied and supported in the UK and Europe.

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Typical values, not a specification. Figures come from the manufacturer's published data, measured on laboratory samples. The TDS for your order is the agreed specification. Price, packaging, lead time and REACH status are confirmed with each quotation. Always trial before use.

New

Polyester polyols for PUR hot-melt adhesives

14 new NGC Ester HM grades: crystalline hexanediol and butanediol adipates, fast-set, amorphous and liquid grades to build reactive hot melts. Is your polyester supplier leaving the market? Send us your grade and TDS and we send matched lab samples.

See hot-melt grades

Aliphatic polyester polyols, for CASE

Strength, abrasion resistance and oil resistance for elastomers, footwear soles, TPU, synthetic leather, coatings, adhesives, sealants and PU dispersions. 22 grades, OH 38 to 118 mg KOH/g.

See CASE grades

Aromatic polyester polyols, for rigid foam

For rigid PUR and PIR foam: panels, boardstock, spray, appliance and one-component foam. Fine cells for low thermal conductivity with good strength. 21 grades, OH 170 to 360 mg KOH/g.

See rigid foam grades
Aliphatic · CASE

Aliphatic polyester polyols

Viscosity is shown with its measuring temperature. Compare grades at the same temperature.

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GradeOH valuemg KOH/gAcid valuemg KOH/gViscositymPa·s at °CAvg MWg/molKey applicationsTDS
Footwear and microcellular elastomers
NGC Ester 7225555–59≤ 1.04,200–5,000 at 352,000FootwearRequest TDS
NGC Ester 7225050–55< 0.84,500–5,500 at 352,150FootwearRequest TDS
NGC Ester 72245T44–48< 1.06,800–7,800 at 352,600FootwearRequest TDS
NGC Ester 72265T64–68< 1.04,000–4,600 at 352,000FootwearRequest TDS
NGC Ester 71165DB60–68< 1.09,400–12,000 at 352,010FootwearRequest TDS
NGC Ester 74050T54–58< 1.07,600–8,600 at 352,100FootwearRequest TDS
NGC Ester 7405554–58< 0.72,900–3,600 at 352,000Footwear, synthetic leatherRequest TDS
NGC Ester 7327270–75< 0.82,000–4,000 at 351,550Low-density, high-hardness sandals; adhesivesRequest TDS
NGC Ester 7316058–63< 1.619,000–24,000 at 252,580Footwear, hot-cast elastomerRequest TDS
TPU and synthetic leather
NGC Ester 71255B54–58< 0.52,000–2,500 at 502,050TPU resins, footwear, synthetic leatherRequest TDS
NGC Ester 73255B54–58< 1.06,000–7,000 at 352,000TPU and footwear, better hydrolysisRequest TDS
NGC Ester 72120B108–116< 0.5100–300 at 751,000TPU resins, adhesives, synthetic leatherRequest TDS
NGC Ester 72156B50–55< 0.51,350–1,650 at 602,250TPU resins, adhesives, synthetic leatherRequest TDS
NGC Ester 72140B38–42< 0.52,700–3,300 at 602,800Adhesives and TPURequest TDS
NGC Ester 7115654–58≤ 1.0500–700 at 752,000TPU, synthetic leatherRequest TDS
Coatings, adhesives, sealants and PUD
NGC Ester 74055NP55–60< 0.51,500–3,500 at 352,000CASE, dispersions, UV stableRequest TDS
NGC Ester 74256NH53–57< 0.56,000–8,000 at 602,000Coatings, adhesives, PUDRequest TDS
NGC Ester 74310NH106–118< 1.0500–800 at 751,200Coatings, adhesives, PUDRequest TDS
NGC Ester 75255MPD55–60< 1.0On request2,000High hydrolysis: coatings, adhesives, PUD, microcellularRequest TDS
NGC Ester 75255PO55–60< 1.07,000–8,000 at 352,000High hydrolysis: coatings, adhesives, PUD, microcellularRequest TDS
NGC Ester 7611355–60< 1.07,000–8,000 at 352,000Medium hydrolysis: coatings, adhesives, water-based PUDRequest TDS
NGC Ester 72120-5550–60< 1.5800–1,200 at 752,050CASERequest TDS
Aromatic · Rigid PUR/PIR

Aromatic polyester polyols

Uses: App = appliance, Spray = spray foam, Disco = discontinuous panel and block, Cont = continuous panel and block, OCF = one-component foam, PUR = PUR systems. Viscosity at 25 °C.

Request TDS/SDS
GradeUsesOH valuemg KOH/gViscositymPa·s, 25 °CAcid valuemg KOH/gfAvg MWKey performanceTDS
NGC Ester 78315App, Spray, Cont, PUR3102,6002.42360General rigid foam, good thermal efficiencyRequest TDS
NGC Ester 77310App, Spray, Disco, Cont, PUR3152,200< 2.02356Good flow, high fire, works with most blowing agentsRequest TDS
NGC Ester 78235App, Cont, PUR2353,000< 1.02480Good flow, HFC and HC compatibleRequest TDS
NGC Ester 78241App, Cont, PUR2403,000< 2.52470Thermal efficiency, green strength, HC and HFCRequest TDS
NGC Ester 78235TASpray, Disco, Cont, PUR2353,500< 1.02480High fire, HC and HFC compatibleRequest TDS
NGC Ester 78250TASpray, Disco, Cont2404,000< 1.02470High fire at medium-high index PIRRequest TDS
NGC Ester 79240TASpray, Cont, PUR2408,500≤ 1.52.3540High fire continuous PIR, better adhesionRequest TDS
NGC Ester 78245Disco, Cont, PUR24511,000< 1.52460High fire at medium-high index PIRRequest TDS
NGC Ester 79235App, Disco, Cont, PUR2409,500< 1.02.7640Disco panel and block, PIRRequest TDS
NGC Ester 79285Spray, Disco, Cont3005,000< 1.02.3430Disco sandwich panel and block, PIRRequest TDS
NGC Ester 79300Spray, Cont, PUR3005,500< 1.02375ASTM E84 class, spray and PIR boardstockRequest TDS
NGC Ester 7300BRApp, Disco, Cont, PUR3009,500< 1.03560Brominated polyester polyolRequest TDS
NGC Ester 79350Spray, Disco, Cont, PUR3503,000< 1.02.5400Strong and good fire in low-index PIR and PURRequest TDS
NGC Ester 79360Disco, Cont, PUR3609,000< 1.02.4375Strong and good fire in low-index PIR and PURRequest TDS
NGC Ester 72350Disco, Cont, PUR3505,500< 1.03480Strong, good fire, PUR hybridRequest TDS
NGC Ester 77350Disco, PUR3505,000< 1.52.2352Strong, good fire, PUR hybridRequest TDS
NGC Ester 79250Spray, OCF, PUR2505,500< 1.024501K and 2K foam to DIN 4102 B1Request TDS
NGC Ester 78190KOCF1903,000< 1.525901K foam to DIN 4102 B2Request TDS
NGC Ester 78175Cont1703,000< 0.82660PIR metal panel; flexible foam textile bondingRequest TDS
NGC Ester 7270FCOSpray, Disco, Cont, PUR270450< 1.5——Adhesion, less friability in water-blown foamRequest TDS
NGC Ester 72190APSpray, Disco, Cont, OCF1901,000≤ 1.02.1620Viscosity reducer and adhesion promoterRequest TDS
Quick picks

Where to start

You makeStart withWhy
PIR boardstock and continuous panelsNGC Ester 78235, 78241OH 235 to 240, 3,000 mPa·s, good flow, pentane compatible
High-fire continuous PIRNGC Ester 78250TA, 79240TA, 78245Fire performance at medium-high index
Discontinuous panels and blocksNGC Ester 79285, 79235Made for discontinuous PIR
Spray foamNGC Ester 79300, 77310Good flow; ASTM E84 class (79300)
One-component foamNGC Ester 79250, 78190KDIN 4102 B1 and B2
Footwear solesNGC Ester 72255, 72250, 74050TMicrocellular footwear grades
TPUNGC Ester 71255B, 72156BLow acid value
AdhesivesNGC Ester 72140B, 72120BHigh or low MW for strength or tack
Reactive hot-melt adhesivesNGC Ester HM gradesCrystalline, amorphous and liquid polyesters for PUR hot melts
Coatings and PUDNGC Ester 75255PO, 74055NPHydrolysis resistance; UV stable

Matching a grade you use today? Send us its TDS. We compare OH value, viscosity, acid value and functionality, then send a sample and TDS for your trial.

PDF

Downloads

NGC Ester catalogue

All 57 grades, including the new hot-melt range, with typical data and quick picks. 7 pages, Issue 2, October 2026.

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Technical data sheets

TDS for every grade on request. Tell us the grade and we send it.

Ask for a TDS, SDS or priceAll products