TDI Based Prepolymers

TDI BASED PREPOLYMERS

Desmodur TDI Based Prepolymers

Covestro offers a wide range of TDI based prepolymers including common grades such as polypropylene glycol (PPG), polytetramethylene ether glycol (PTMEG), polyester, caprolactone and as well as low TDI unreacted TDI monomer content (LU-T & LU-D based systems).

Our Desmodur based TDI prepolymers are designed to processed and cured with several amine curatives such as MOCA or Ethacure.

TDI – PPG

Desmodur TG244

Desmodur TG250

Desmodur TG256

Desmodur TG263

Desmodur TG293

Overview – TDI PPG

Product	Description	Appearance	Application	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur TG244	TDI PPG	Liquid	Production of wheels, castors, industrial rollers, dunnage	1.01	8′	1000	85 A	21	80
Desmodur TG250	TDI PPG	Liquid		1.02	5′	600	90 A	29	107
Desmodur TG256	TDI PPG	Liquid		1.04	3’15”	600	95 A	32	117
Desmodur TG263	TDI PPG	Liquid		1.06	3’10”	1200	60 D	34	143
Desmodur TG293	TDI PPG	Liquid		1.10	1’30”	700	75 D	45	190

Overview - TDI PPG

TDI – PTMEG

Desmodur TT129

Desmodur TT131

Desmodur TT142

Desmodur TT156

Desmodur TT163

Desmodur TT174

Desmodur TT194

Desmodur TT1107

Desmodur TTX134

Desmodur TTX146

Desmodur TTX152

Desmodur TTX163

Desmodur TTX170

Overview – TDI PTMEG

Product	Description	Appearance	Application	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur TT129	TDI PTMEG	Solid	For production of wheels, casters, rollers, bushings, screens, timing belts, scrapers, pulleys, couplings, springs, vibratory bowls, inner pipe coatings, diabolo, cushioning, hydraulic seals, stiffeners, sheets etc	1.01	16′	1800	80 A	25	72
Desmodur TT131	TDI PTMEG	Solid		1.01	15′	1300	85 A	30	75
Desmodur TT142	TDI PTMEG	Liquid		1.01	8′	900	90 A	45	90
Desmodur TT156	TDI PTMEG	Liquid		1.02	6′	550	93 A	48	100
Desmodur TT163	TDI PTMEG	Liquid		1.03	5′	400	95 A	50	110
Desmodur TT174	TDI PTMEG	Liquid		1.05	2’30”	400	60 D	58	150
Desmodur TT194	TDI PTMEG	Liquid		1.09	1’30”	880	73 D	60	200
Desmodur TT1107	TDI PTMEG	Liquid		1.10	1′	600	80 D	66	240
Desmodur TTX134	TDI PTMEG	Liquid		1.01	12′	1200	83 A	40	75
Desmodur TTX146	TDI PTMEG	Liquid		1.01	5′	700	90 A	48	91
Desmodur TTX152	TDI PTMEG	Liquid		1.02	6′	600	93 A	48	105
Desmodur TTX163	TDI PTMEG	Liquid		1.03	5′	500	95 A	50	116
Desmodur TTX170	TDI PTMEG	Liquid		1.03	4′	450	96 A	54	140

Overview - TDI PTMEG

TDI – ESTER

Desmodur TD630

Desmodur TD636

Desmodur TD643

Desmodur TD651

Desmodur TD6400

Overview – TDI Ester

Product	Description	Appearance	Application	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur TD630	TDI Ester	Solid	For production of anvil covers, zero crush wheels, printing rollers, mining screens, chute lining, ceramic mould, caterpillar pads, vibratory bowls etc	1.18	9′	2550	80 A	51	90
Desmodur TD636	TDI Ester	Solid		1.19	6′	2000	85 A	45	106
Desmodur TD643	TDI Ester	Solid		1.19	5′	2000	90 A	49	114
Desmodur TD651	TDI Ester	Solid		1.19	3’30”	1500	95 A	52	140
Desmodur TD6400	TDI Ester	Solid		1.19	12′-18′	2000	20-58 A	13-40	20-40

Overview - TDI Ester