WARNING: This product can expose you to chemicals including N-METHYLPYRROLIDONE and TITANIUM DIOXIDE (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE) which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Overview
PR-1995 Class B is a primerless two-part, firewall sealant based on silicone polymer. This material is designed for sealing firewall structures against the passage of air and vapors. PR-1995 Class B will remain an effective sealant after long-term exposure to phosphate ester based hydraulic fluids.
Features & Benefits
Primerless formulation for easy application and reduced preparation time
High thermal resistance, withstands flash temperatures up to 3500°F (1927°C)
Excellent adhesion to common aircraft substrates for reliable sealing
Low temperature flexibility to maintain seal integrity at -65°F (-54°C)
Corrosion resistance to protect against environmental factors
Long storage life of at least 9 months under proper conditions
Effective barrier against air and vapor passage for enhanced safety
Specifications
Series: PR-1995
Container Size: 1 pt
Base Type: Phosphate Ester
Form: Solid
Color: Gray
Composition: >=10 to <=20% Triethoxy(Phenyl)silane, >=10 to <=15% Proprietary Silane, >=5 to <=10% Siloxanes and Silicones, Di-me, Hydroxy-terminated, <=1% Crystalline Silica, Respirable Powder (>10 Microns), <1% N-methyl-2-pyrrolidone, <1% Dibutyltin Di(Acetate) (Part A), 25 to <50% Aluminum Oxide, 2 to <3% Titanium Dioxide (Excluding Nanoparticle), 2 to <3% Calcium Sulfate Dihydrate (Part B)
Application Time: 2 hr
Density: 10.52 lb/gal
Specific Gravity: 1.62 lb/gal
Viscosity: 1720 Pa-s
VOC Content: 390 g/L
Shelf Life: 183 Days
Storage Temperature: 80 deg F
Temperature Rating: -65 to 400 deg F
Relative density: 1.26 lb/gal (Part A), 1.54 lb/gal (Part B)
DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
