Molecular Chemical Systems™ PM-3300-157

Molecular Chemical Systems™ PM-3300-157 is an aromatic urethane end-capped prepolymer containing monomeric MDI. Molecular Chemical Systems™ PM-3300-157 is designed for use in elastomer and binder systems where medium pro- cessing times are required.

Principal: Carpenter Chemical Systems

End Uses: Polyurethanes

Functions: Binder, Resin

Labeling Claims: Not Listed In California Proposition 65

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Enhanced TDS

Identification & Functionality

Blend
No
Chemical Family
Plastics & Elastomers Functions
Product Code
MITM16026
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses

Properties

Physical Form

Technical Details & Test Data

Viscosity Graph

Molecular Chemical Systems™ PM-3300-157 - Chemical Structure - 1

Safety & Health

Safety Information
  • Polyurethane products manufactured or produced from this liquid system may represent a serious fire hazard if improperly used or allowed to remain exposed or unprotected. The char- acter and magnitude of any such hazard will depend upon a broad range of factors which are controlled and influenced by the manufacturing and production process, by the mode of ap- plication or installation, and by the function and usage of the particular product.
  • Any flammability rating contained in this liter- ature is not intended to reflect hazards presented by this or any other material under actual fire conditions. These ratings are used solely to measure and describe the products response to heat and flame under controlled laboratory conditions.
  • Each person, firm, or corporation engaged in the manufacture, production, appli- cation, installation, or use of any polyurethane product should carefully determine whether there is a potential fire hazard associated with such product in a specific usage, and utilize all appropriate precautionary and safety measures.

Storage & Handling

Storage Conditions
  • Shelf life is dependent on storage conditions. Components should be stored in tightly capped containers with nitrogen-blanketed headspace.
  • Components should be stored in a temperature controlled environment of approximately 70°F.
  • Avoid extreme temperatures and significant changes in temperature.

Other

Appearance (SDS)
Clear amber
Boiling Point (SDS)
200.0 °C
Density
9.5 lb/gal
Flash Point (SDS)
min. 200.0 °F
Isocyanate Content
15.5-16.0 %
Odor (SDS)
Slight musty odor
Other Hazards
Onset of symptoms may be delayed., 56% of the mixture consists of ingredients of unknown acute inhalation toxicity., Refer to Section 11 Toxicological Information for additional toxicity information., Refer to Section 16 Other Information for HMIS and NFPA Codes.
Principal
Shelf Life
6.0 mo
Specific Gravity (SDS)
1.14-1.17
USA/DOT Proper Shipping Name
Environmentally hazardous substance, liquid, N.O.S. (methylene diphenyl diisocyanate)
USA/DOT UN Number
UN3082
Viscosity
900.0 cPs
Viscosity
600.0 cPs
Viscosity
2300.0-4300.0 cPs
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life6.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Density9.5 lb/gallb/gal
Viscosity900.0 cPscPsat 104°F
Viscosity600.0 cPscPsat 120°F
Viscosity2300.0-4300.0 cPscPsAt 77°F
Material Composition
ValueUnitsTest Method / Conditions
Isocyanate Content15.5-16.0 %%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)200.0 °C°Cat 5 mmHg
Flash Point (SDS)min. 200.0 °F°F
Specific Gravity (SDS)1.14-1.17-water=1