SDS
Hercules Chemical Company, Inc.
MSDS # 337 - HERCULES ROOF & FLASHING SEALANT
_
______________________________________________________________________________________
HERCULES ROOF & FLASHING SEALANT – MSDS # 337
Page 3 / 4
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Respiratory Protection: None required in well ventilated areas. In confined spaces wear a NIOSH approved
respirator for organic vapors.
Engineering Controls: Use with general or local exhaust ventilation.
Skin Protection: Wear protective gloves where prolonged contact is anticipated.
Eye Protection: Safety glasses.
Component CAS # OSHA PEL ACGIH TLV Other limits
Asphalt 8052-42-4 N.E. 5 mg/m³ 5 mg/m³ (NIOSH)
Aliphatic hydrocarbons 8052-41-3 100 ppm 100 ppm 350 mg/m³ (NIOSH)
Amorphous Alumina Silicates 93763-70-3 15 mg/m
3
10 mg/m³ N/A
Attapulgite Clay 12174-11-7 N/A 5 mg/m³ N/A
Cellulosic Fibers 9004-34-6 5 mg/m
3
5 mg/m³ N/A
Polymers 9003-55-8 N/A N/A N/A
Cationic Salts 28701-67-9 N/A N/A N/A
9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance And Odor: Black viscous Paste with mild odor. Boiling Point: 300-350°F
Physical State: Liquid Vapor Pressure: 3
Vapor Density (Air=1): 3.9 Evaporation Rate (Butyl Acetate=1)@77F: 0.2
Solubility In Water: insoluble Volatile Components: 300 g/l
Specific Gravity: 0.8 - 1.0 Viscosity: Viscous
Melting Point: N/A pH: N/A
10. STABILITY AND REACTIVITY
Stability: Stable.
Conditions to avoid: Keep away from heat, spark, and open flames.
Incompatibility: Strong oxidizing agents.
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, nitrogen oxides, smoke and fumes.
Hazardous Polymerization: Will not occur.
11. TOXICOLOGICAL INFORMATION
Product may cause respiratory irritation, headache, dizziness, nausea and vomiting. Prolonged or repeated
contact with skin may cause dermatitis.
Sensitization: None.
Chronic: Possible skin and eye irritant.
Carcinogenicity: NTP: No, IARC: No, OSHA: No.
Mutagenicity: Not mutagenic.
Medical Conditions Aggravated by Exposure: Pre-existing skin disease may be aggravated.
Reproductive Toxicity: None.
Acute Toxicity Values: Not determined.
12. ECOLOGICAL INFORMATION
Product has not been tested for ecotoxicity