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Home > Products > inorganic chemical series > 99.5% methylene diphenyl diisocyanate MDI for PU foam Insulation

99.5% methylene diphenyl diisocyanate MDI for PU foam Insulation

Basic Info

Model No.:  101-68-8

Product Description

  • Model NO.: 101-68-8
  • Appearance: Liquid
  • Colour: Yellow
  • Density: 1.220~1.250
  • Usage: polyurethane foam, spray, etc
  • EINECS No: 202-966-0
  • Melting no: 38-44ºC
  • Transport Package: 250kg/drum
  • Origin: China
  • Type: Pharmaceutical Intermediates
  • Quality: Industrial
  • Purity: 99.9%, 99% min
  • NCO(%Wt): 30.2~32.0
  • boiling point: 39.1
  • Flash no: 196ºC
  • Trademark: wanhua
  • Specification: Grade A
Product Description
MDI 99.5%
MDI Properties 
appearence: Brown transparent liquid ;
boiling point (ºC):  200~208;
stability: stable. Incompatible with strong oxidizing agents, alcohols. May decompose in moist air, or on contact with water.
MDI Applications 
Isocyanates MDI is extensively application in most of field, such as thermal insulation rigid foam, PU coating, PU adhesive,Seepage-proofing, structure foam, Automobile bumper, high resilience etc.
With good performance such as very good fluidity, very good foaming capacity, strength well, dimension stability etc. 
No Item Unit Index
1 Appearance   Component A:yellowish  viscous fluid
Component B: dark brown liquid
2 Viscosity pa.s Component A:≤3.0
Component B:≤2.5
4 The time when the mixture become ivory-white color  sec. 15~60 sec. (could adjust according customer requiement )
5 The time then the mixture occur wire drawing  sec. 50~200 sec.(could adjust according customer requiement )
6 The time when the mixture start dry  sec. 70~360 sec.(could adjust according customer requiement )
7 The density of foam Kg/m³ 28~60   (could adjust according customer requiement )
 Use Method
1. Mixing Ratio  A:B=1:1 by weight
2. Component A and B should store in the temperature 15C-30C
3. Suggestion flow rate of high pressure foaming machine is >180kg/minute
   Suggestion hand blender is twin-propeller , mixing speed is >2000 RPM / minute
4. If use hand blender , it must be mix A and B evently ,then pour it into mold

Packaging & Shipping
Packing: 250kg/drum,  
shipping: within 15 workdays
99.5% methylene diphenyl diisocyanate MDI for PU foam Insulation

99.5% methylene diphenyl diisocyanate MDI for PU foam Insulation

Cell is fine and smooth. 
Uniform density distribution 
Perfect compressive strength
Dimensional stability
Preheat the mold on 40 to 45 degree, it has a strong adhesion with refrigerator insulation layer.

Polymeric MDI (Polymethane Polyphenyl Isocyanate)
Appearance   brown liquid brown liquid
Viscosity mPa.s@25°C 175-250 226
NCO content %(CO) 30-32 30.8
EHC Mg/kg MAX.250 89
Density (25°C,g/cm3) 1.22-1.25 -
Acid Content (HCL) % ≤0.05 -
Hydrolyzable Chlorine % ≤0.2 -
Product name:Methylene diphenyl diisocyanate(MDI)
Synonyms : 4,4'-Methylenebis(phenyl isocyanate); 1,1'-Methylenebis(4-isocyanatobenzene); MDI
Cas No.:101-68-8
Molecular Weight: 250.25
Molecular Formula : C15H10N2O2
Density :1.19
Melting point : 38-44 ºC
Boiling point : 392 ºC
Flash point : 196 ºC
Water solubility : decomposes
1. Store in a cool,dry and ventilating place.
2. Keep out of the direct sun; Keep away from heat source and water source.
3. The storage time of original packing is 6 months.

Packaging & Shipping
200KG/DRUM or according to customer's requiement
Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.
For mass orders, it will be delivered by air or sea.
Depending on your location, please allow 1-5 business days for your order to arrive.
For small order, please expect 3-7 days by UPS DHL EMS.
For mass order, please allow 5-8 days by Air, 15-30 days by Sea.

Our Services
1.Cooperate with research institutions, we strictly control the process from raw material to finished product.
2.The customer comes first, we provide reasonable price, high quality product and prompt shipment.
3.We can send the goods to your delivery address directly. It is relatively safe and fast. We have ready goods in stock.
4.Quick and clear response to customers questions.
Warm after sale service, we will help to solve the problems in your usage.
5.We could make our price discount if you place a substantial order with us.

Contact us if you need more details on MDI. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 1 1′-Methylenebis(4-isocyanatobenzene)、4 4′-Methylenebis(phenyl isocyanate). If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : inorganic chemical series

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