Finding the right blocked aliphatic poly-isocyanates - a first orientation - Desmodur® BL

This overview of our blocked aliphatic poly-isocyanates shows in a simplified way the main characteristics of our major products. Depending on the desired properties of the end products and your specific formulation requirements other grades might be more suitable. Please contact our experts if you need help with your formulation.

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The most popular grades and their technical data:

Desmodur®	Monomer Base	Blocking Agent	Form supplied appr. [%] (Solvent)	Viscosity at 23°C appr. [mPas]	Block. NCO appr. % (supply form)	Equiv. weight, appr. (supply form)	Curing temperatures
							Coil PMT °C	Can 12 Min. °C uncatalyzed	Ind./OEM 20 Min. °C
BL 3175	HDI	MEKO	75 in SN100	3,300	11.1	378	323	160	150
BL 3272	HDI	e-CAP	72 in MPA	2,700	10.2	412	243	160	180
BL 3370	HDI	DEM/DIPA	70 in MPA	3,800	8.9	470	182	140	140
BL 3475	HDI/IPDI	DEM	75 in SN100/BA	1,000	8.2	510	171	140	120
BL 3575/1	HDI	DMP	75 in SN100/MPA	3,600	10.5	400	232	160	150
BL 4265	IPDI	MEKO	65 in SN100	11,000	8.1	519	232	160	160
BL 5375	H12MDI	MEKO	75 in SN100/MPA	4,000	8.9	470	232	160	160
PL 340	HDI	DMP	60 in BA/SN100	600	7.3	575	224	150	150
PL 350	HDI	DMP	75 in MPA/SN100	4,300	10.5	400	216	150	150
VP LS 2078/2	IPDI	e-CAP	60 in SN100	2,000	7.0	600	243	180	180

Technical data and application information on all of our poly-isocyanates and prepolymers in this product overview:

Polyisocyanates and Prepolymers: Products and Applications

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