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Nextstar Technologies
Safety Data Sheet Documentation
SDS Document
Product Name
Nextstar 100/800 - Hydrophobic Polyurethane
Synonym
Aromatic Isocyanate
Supplier
Nextstar Technologies
9899-112 Ave Unit 3
Grande Prairie, AB T8V-7T2
info@nextstar.ca
🚨 Emergency Contact
InfoTrac: 1-800-535-5053
Outside U.S. and Canada: 1-353-323-3500
Emergency number for chemical spills, leaks, fires, exposures, or accidents only.
🚨 DANGER
⚠️ Critical Safety Information
Any individual with isocyanate sensitivity should not be exposed to this product.
These individuals can react to exposure well below the exposure limit.
⚠️ Hazard Statements
- Moderate skin irritant - prolonged/repeated exposure can cause skin sensitization
- May cause eye irritation, stinging, burning or tearing
- Respiratory irritation - onset may be delayed for several hours
- Inhalation above occupational exposure limit could cause respiratory system damage
- Chronic exposure may cause isocyanate sensitization (chemical asthma)
Skin Contact
Moderate irritant. Prolonged or repeated exposure can cause skin sensitization.
Eye Contact
As liquid, vapor or mist, may cause irritation, stinging, burning or tearing.
Ingestion
Irritation of GI tract with nausea, vomiting, lethargy, diarrhea.
Inhalation
Respiratory irritation. Symptoms may be delayed several hours. Risk of respiratory system damage.
Potential Health Effects: At room temperature, MDI vapors are minimal due to low vapor pressure. However, heating, foaming, or dispersing operations may generate more vapor or aerosol. Excessive exposure may cause irritation of eyes, upper respiratory tract and lungs. Severe overexposure may lead to pulmonary edema.
Carcinogenicity: MDI and polymeric MDI are not listed by the NTP, IARC or regulated by OSHA as carcinogens. California Proposition 65 warning applies.
| Ingredient |
% by Weight |
Exposure Limits |
CAS # |
| MDI Prepolymer |
20 - 40% |
— |
59675-67-1 |
| 2,2-dimethyl-1-(methylethyl)-1,3-propanediyl bis(2-methylpropanoate) |
10 - 20% |
— |
6846-50-0 |
| Polymeric diphenylmethane diisocyanate |
< 15% |
— |
9016-87-9 |
| Di-isononyl phthalate linear |
< 15% |
— |
28553-12-0 |
| Diphenylmethane 4,4'- diisocyanate |
< 15% |
OSHA/PEL: 0.02 ppm (ceiling)
ACGIH/TLV: 0.005 ppm |
101-68-8 |
👁️ Eyes
Flush eyes with plenty of water for at least 15 minutes. Materials containing MDI may react with eye moisture forming a thick material difficult to wash from eyes. Seek medical attention.
🖐️ Skin
Wash off in soap and flowing water or shower. Remove and wash contaminated clothing, discard contaminated shoes. Seek medical attention immediately if redness, itching or burning sensation develops or persists.
🍽️ Ingestion
If swallowed, rinse mouth with water. Give 1 or 2 glasses of water to drink. Do not induce vomiting. Seek immediate medical attention. Never give anything by mouth to an unconscious person.
💨 Inhalation
Remove to fresh air, keep warm and at rest. If not breathing, give artificial respiration. If breathing is difficult, oxygen should be administered by qualified personnel. Call a physician or transport to medical facility immediately.
📋 Note to Physician
Eyes: Strain for evidence of corneal injury. If cornea is burned, instill antibiotic steroid preparation frequently.
Skin: This material is a known skin sensitizer. Treat symptomatically as for contact dermatitis or thermal burns.
Ingestion: Treat symptomatically. No specific antidote. Inducing vomiting is contraindicated.
Flash Point
> 200°F (93.3°C)
Fire Degradation Products: Toxic fumes are released in fire situations. Combustion may produce carbon dioxide, carbon monoxide and nitrogen oxides.
Extinguishing Media: Use dry chemical foam, carbon dioxide, water fog or spray.
Protective Equipment: Wear positive pressure self-contained breathing apparatus with full face piece and full protective clothing.
Fire Fighting Procedures: Isolate fuel supply from fire. Use water spray to cool fire exposed surfaces and containers.
Comment: Product acts slowly with water to produce carbon dioxide which may rupture closed containers. This reaction accelerates at higher temperatures.
Spill Response
Evacuate spill area. With adequate ventilation and appropriate PPE, cover area with inert absorbent (earth, sand) and transfer to metal waste containers. Saturate with water or decontamination solution, but do not seal container.
⚠️ Important Note
Isocyanate will react with water and generate carbon dioxide. This could result in rupture of any closed container.
Clean Up: Flush area with decontamination solution (2% liquid detergent, 5% concentrated ammonia, 93% water). Use 10 parts solution to 1 part isocyanate. Allow to stand 48 hours letting CO2 escape. Test atmosphere for MDI.
Container Disposal: Thoroughly drain containers. Decontaminate in properly ventilated areas. Spray or pour 1-5 gallons of decontamination solution into drum, let soak unsealed for 48 hours, triple rinse, then puncture or destroy before disposal.
Do not heat or cut empty containers with electric or gas torch.
Storage Temperature
Store between 40°F and 90°F (4.4°C - 32.2°C) in sealed containers.
Storage Conditions
Protect from atmospheric moisture. After opening, blanket with nitrogen before resealing. Store indoors in a cool, well ventilated area.
Handling
Use PPE when transferring material. Safety glasses and gloves are minimum protection. Additional precautions for splash hazards.
Special Sensitivity
Material is hygroscopic and reacts with water. Will form cured particles or film when exposed to atmospheric moisture.
| Ingredient |
OSHA/PEL |
ACGIH/TLV |
CAS # |
| Diphenylmethane 4,4'- diisocyanate |
0.02 ppm (ceiling)
0.20 mg/m³ (ceiling) |
0.005 ppm
0.051 mg/m³ |
101-68-8 |
⚠️ Exposure Warning
Control limits do not apply to previously sensitized individuals or to individuals with existing respiratory disease such as bronchitis, emphysema or asthma.
Persons with known respiratory or allergic problems must not be exposed to this product.
Ventilation
MDI has very low vapor pressure at room temperature. General/local ventilation typically controls exposure adequately. More aggressive controls may be required for heating applications.
Respiratory Protection
Supplied air, full face piece, positive pressure respirator required when airborne concentrations unknown or exceed threshold. Air purifying (cartridge type) respirators are NOT approved for isocyanates.
Eye Protection
Chemical splash goggles, safety glasses or full face shield. If vapor causes discomfort, use full face piece respirator or air supplied hood.
Protective Clothing
Wear clothing and gloves impervious to MDI. Materials: butyl rubber, nitrile rubber, neoprene, Saranex coated Tyvek.
Vapor Pressure
< 0.0001 mm Hg
Specific Gravity
1.09 - 1.11
Stability
Stable under recommended storage conditions. Avoid temperature extremes, container contamination and moisture.
Hazardous Polymerization
May occur at elevated temperatures in presence of alkalis, tertiary amines and/or metal compounds.
Incompatible Materials
Reacts with materials containing active hydrogens such as water, alcohol amines, bases and acids. Reaction with water accelerates at higher temperatures.
Hazardous Decomposition
Carbon monoxide, carbon dioxide, nitrous oxide and HCN.
| Component |
Oral LD50 (rat) |
Dermal LD50 (rabbit) |
Inhalation LC50 (rat) |
| 2,2-dimethyl-1-(methylethyl)-1,3-propanediyl bis(2-methylpropanoate) |
> 3200 mg/kg |
> 18900 mg/kg (guinea pig) |
> 5.3 mg/L/6h |
| Di-isononyl phthalate linear |
> 10000 mg/kg |
> 3000 mg/kg |
> 4.4 mg/L/4h |
| Diphenylmethane 4,4'- diisocyanate |
> 5000 mg/kg |
> 5000 mg/kg |
490 mg/m³/4h (respirable aerosol) |
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, OSHA, or ACGIH.
⚠️ Important Application Note
This material is designed and intended to be pumped, not sprayed. MDI becomes more hazardous when atomized (sprayed). Any person developing asthmatic reaction or other sensitization should be removed from further exposure.
MDI: LC50 (zebra fish) >500 mg/L/96h | EC50 (daphnia magna) >500 mg/L/24h
Chemical Fate: Immiscible with water, but will react with water to produce inert and non-biodegradable solids.
Comments: No testing for product as a whole.
DOT (Domestic)
Not regulated below RQ (Class 55)
IMO (Ocean)
Not regulated
ICAO (Air)
Not regulated
OSHA Status
Hazardous under 29 CFR 1910.1200
TSCA Status
On the TSCA inventory
CERCLA Reportable Quantity
4,4 Diphenylmethane Diisocyanate = 5,000 lbs
SARA Section 311/312
Acute, Chronic, Sensitizing substance
Section 313 Toxic Chemicals
4,4 Diphenylmethane Diisocyanate (MDI) CAS# 101-68-8
Polymeric diphenylmethane diisocyanate CAS# 9016-87-9
NFPA Ratings
Health: 2
Flammability: 1
Reactivity: 1
HMIS Ratings
Health: 2
Flammability: 1
Reactivity: 1
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