Flamemaster CS 5306 Polythioether Quick Repair Fuel Sealant - MIL-S-29574

CS 5306 is recommended for sealing on aircraft to yield weather tightness and fuel resistant seals. CS 5306 is a non-flow material and may be utilized on vertical and overhead surfaces. CS 5306 is a thixotropic and fuel resistant sealant.

CS 5306 is a two-part, sealant based on Permapol P-3 polymers covered under U.S. Patent 4,366,307. When cured CS 5306 is a flexible, resilient rubber which has excellent adhesion to aluminum, magnesium, and titanium. Most surfaces require CS 5306 primer for optimum adhesion.

Color Base Compound, PartA: White

Color Curing Agent, Part B: Black

Color Non-Volatile Content, Minimum: 98%

Viscosity:
-Base Compound (Brookfield Spindle #7 @ 2 RPM): 12,000 poises
-Curing Agent: 1,000 poises
-Mixing Ratio by WT & VOL.: 100:8.5
-Vertical Flow (per Mil-S-8802): Maximum 0.5 Inch
-Application Life, Tack Free and Cure Time: (77 °F and 50% Relative Humidity)

STORAGE LIFE

The storage life of CS 5306 is 9 months minimum when stored at temperatures below 80°F in the original unopened containers. Some change in application life, viscosity and curing rate may occur during this period. However, such changes are slight and in no way affect the end performance of the product.

SURFACE PREPARATION

To obtain good adhesion, remove all traces of oil, wax, grease, dirt, or other contamination. This is done by wiping with a clean oil free solvent. Clean only small areas at one time and wipe dry with a clean cloth before the solvent evaporates. Maintain a clean solvent supply. Apply CS 5306 primer and let air dry for 30 minutes before applying sealant. Primer is included with the cartridge kit.

MIXING INSTRUCTIONS

When mixing always follow the instructions printed on the sealant cartridge packaging. When machine mixing use caution not to overheat cartridge or contents

APPLICATION INSTRUCTIONS

CS 5306 may be applied with a pressure gun or a spatula within the specified application life. Specified application lives are based on the standard condition of 77°F and 50% relative humidity.

CURE

The cure period is dependent on the application life and temperature. Cure may be accelerated by heating up to 160 F.