MDI Based Prepolymers

MDI BASED PREPOLYMERS

Desmodur MDI Based Prepolymers

Covestro offers a wide range of MDI based prepolymers including MDI-polyether conventional and quasi systems, MDI-polyester conventional

and quasi systems, MDI polyether and polyester rotational casting systems and any other customized systems up to your requirements.

Our Desmodur MDI based prepolymers are usually processed with alcohol based curatives such as Baytec XL B.

MDI – ETHER

Desmodur MT 2140

Desmodur MT 2151

Desmodur MT 2169

Desmodur MT 2173

Desmodur MT 2184

Desmodur MT 3593

Desmodur MT 35105

Product	Description	Appearance	Characteristics	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur MT 2140	MDI Ether	Solid	Excellent hydrolysis and microorganism resistance	1.01	11′	3400	75 A	14	51
Desmodur MT 2151	MDI Ether	Solid		1.02	7’30”	2600	80 A	23	59
Desmodur MT 2169	MDI Ether	Solid		1.03	6′	1400	85 A	34	75
Desmodur MT 2173	MDI Ether	Solid		1.03	4′	1200	90 A	42	103
Desmodur MT 2184	MDI Ether	Solid		1.03	3′	800	95 A	45	111
Desmodur MT 3593	MDI Ether	Solid	Excellent hydrolysis and microorganism resistance; Easy to process and suitable for massive part molding	1.15	4’30”-5’30”	2000	60-93 A	9-43	34-120
Desmodur MT 35105	MDI Ether	Solid		1.16	2′	750	95 A	47	150

Overview - MDI Ether

QUASI MDI – ETHER

Desmodur MGQ 32135

Desmodur MGQ 33101

Desmodur MTQ 25130

Desmodur MTQ 25165

Desmodur MTX 6076

Product	Description	Appearance	Characteristics	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur MGQ 32135	Quasi MDI PPG	Liquid	Excellent abrasion and tear resistance; very good handling strength and suitable for massive part molding	1.10	3’50″–5’00”	400	60-95 A	23-39	47-125
Desmodur MGQ 33101	Quasi MDI PPG	Liquid	Excellent microorganism resistance; suitable for massive part molding	1.09	2’30″–4’00”	2600	50-90 A	6-21	27-107
Desmodur MTQ 25130	Quasi MDI PTMEG	Liquid	Excellent hydrolysis and microorganism resistance; good abrasion resistance	1.10	1’45″–4’30”	800	60-95 A	15-49	35-138
Desmodur MTQ 25165	Quasi MDI PTMEG	Liquid	Excellent hydrolysis and microorganism resistance; good abrasion resistance; Suitable for low temperature usage	1.10	3’00″–7’00”	400	60-95 A	22-47	33-139
Desmodur MTX 6076	Quasi MDI PTMEG	Liquid	Excellent hydrolysis and microorganism resistance; easy to handle and process; suitable for massive part molding	1.18	1’40″–5’00”	210	60 A-76 D	22-62	40-281

Overview - Quasi MDI Ether

MDI – ESTER

Desmodur MD 1380

Desmodur MD 1578

Desmodur MD 1665

Desmodur MD 15120

Product	Description	Appearance	Characteristics	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur MD 1380	MDI Ester	Solid	Excellent dynamic properties; good abrasion and tear resistance	1.15	1’30″–2’45”	1200	65-90 A	27-46	66-110
Desmodur MD 1578	MDI Ester	Solid		1.14	1’20″–1’30”	1500	65-93 A	46-60	50-128
Desmodur MD 1665	MDI Ester	Solid	Excellent tear resistance; good dynamic properties and abrasion resistance	1.18	5’00”	1700	85 A	43	110
Desmodur MD 15120	MDI Ester	Solid	Good tear and abrasion resistance; good dynamic properties	1.15	1’10”-10’00”	700	60 A-60 D	26-53	34-203

Overview - MDI Ester

QUASI MDI – ESTER

Desmodur MDQ 23165

Desmodur MDQ 24163

Desmodur MDQ 29170

Product	Description	Appearance	Characteristics	Density(g/cm³)	Pot life (mins)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Tear Strength (kN/m)
Desmodur MDQ 23165	Quasi MDI Ester	Liquid	Excellent abrasion and tear resistance	1.17	2’35″–5’00”	700	55 A-55 D	33-50	40-144
Desmodur MDQ 24163	Quasi MDI Ester	Liquid	Excellent abrasion and tear resistance	1.17	1’45″–4’30”	1200	55 A-55 D	31-57	37-168
Desmodur MDQ 29170	Quasi MDI Ester	Liquid	Excellent abrasion and tear resistance; solvent resistance	1.17	1’00″–2’00”	500	60 A-95 A	38-56	47-118

Overview - Quasi MDI Ester