Storage & Shelf Life
Use within ten months of the manufacture date. Keep the original container cool, dry, and in a climate-controlled location. Best if stored at 70ºF with <50% relative humidity. Reduced shelf life will occur at higher temperatures and/or higher humidity.
Product Specifications
R90 GP meets or exceeds the requirements of ASTM C920 Type S, Grade NS, Class 25, Use NT, G, A, M.
Chemical & Physical Properties
Skin Time | Internal | < 20 minutes @ 70°F / 50% RH |
Tack Free Time | Internal | < 60 minutes @ 70°F / 50% RH |
Cure Rate | Internal | 1/4” Bead in 48 Hours |
VOC | EPA Method 24 | < 22 g/L, less water & exempt solvents |
Shore A | ASTM C661 | 45 |
Movement Capacity | ASTM C719 | 25% |
100% Modulus of Elasticity | ASTM D412 | 150 – 200 psi |
Tensile Strength | ASTM D412 | 250 – 300 psi |
Sag/Slump | ASTM D2202 | < 0.2” |
UV Rating | ASTM G154 | Do not use in areas subject to light |
Service Temperature | Internal | -58 – 194°F |
Density | Internal | Approx. 13.5 lbs./gal |
Viscosity | RV T-E @ 4 rpm | Approx. 500,000 cP |
Flash Point | Closed Cup | Solvent Free / Not Applicable |
Directions for Use
Use alcohol to clean all work surfaces of all debris, oil, loose paint, frost, and other contamination. Petroleum-based solvents like mineral spirits and xylene SHOULD NOT BE USED. Prior to application, keep R90 GP at room temperature for simple gunning and tooling. To guarantee a continuous bead, test and assess. Tooling should be completed within ten minutes of application, if necessary.
