Technical Specifications

Product Name: GREAT STUFF PRO(TM) Gaps & Cracks 30oz Gun
HC Foam Sealant US
Issue Date: 01/08/2010
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6
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Solubility in water (by
weight)
Not applicable
pH
Not applicable
Decomposition
Temperature
No test data available
Evaporation Rate (Butyl
Acetate = 1)
No test data available
Kinematic Viscosity
Not applicable
10. Stability and Reactivity
Stability/Instability
Stable under recommended storage conditions. See Storage, Section 7. Unstable at elevated
temperatures.
Conditions to Avoid: Avoid temperatures above 50 °C (122 °F) . Elevated temperatures can cause
container to vent and/or rupture. Exposure to elevated temperatures can cause product to
decompose.
Incompatible Materials: Avoid contact with: Acids. Alcohols. Amines. Ammonia. Bases. Metal
compounds. Strong oxidizers. Products based on diisocyanates like TDI and MDI react with many
materials to release heat. The reaction rate increases with temperature as well as with increased
contact; these reactions can become violent. Contact is increased by stirring or if the other material
acts as a solvent. Products based on diisocyanates such as TDI and MDI are not soluble in water and
will sink to the bottom, but react slowly at the interface. The reaction forms carbon dioxide gas and a
layer of solid polyurea. Reaction with water will generate carbon dioxide and heat.
Hazardous Polymerization
Can occur. Elevated temperatures can cause hazardous polymerization.
Thermal Decomposition
Decomposition products depend upon temperature, air supply and the presence of other materials.
Toxic gases are released during decomposition.
11. Toxicological Information
Acute Toxicity
Ingestion
Single dose oral LD50 has not been determined. Estimated. LD50, Rat > 10,000 mg/kg
Skin Absorption
The dermal LD50 has not been determined.
Inhalation
The LC50 has not been determined.
Sensitization
Skin
Skin contact may cause an allergic skin reaction. Animal studies have shown that skin contact with
isocyanates may play a role in respiratory sensitization.
Respiratory
May cause allergic respiratory response. MDI concentrations below the exposure guidelines may
cause allergic respiratory reactions in individuals already sensitized. Asthma-like symptoms may
include coughing, difficult breathing and a feeling of tightness in the chest. Occasionally, breathing
difficulties may be life threatening.
Repeated Dose Toxicity
Tissue injury in the upper respiratory tract and lungs has been observed in laboratory animals after
repeated excessive exposures to MDI/polymeric MDI aerosols. For the minor component(s): In
animals, effects have been reported on the following organs: Kidney. Liver.
Chronic Toxicity and Carcinogenicity