Unwaved paper, stainless steel, glass, or high-density polyethylene or polypropylene containers, stainless steel spatulas, and metal power mixing equipment should be used to prevent product contamination. Do not use rubber or vinyl containers or mixing equipment. Power mixing equipment and spatulas should be wiped clean after ever use and washed with a suitable solvent to maintain contaminant free mixing equipment and assure product quality.


  1. Mix Part A and Part B components according to recommended weight ratios. If power equipment is to be used, it is generally recommended to keep mixing speed at or below 350 rpm to prevent heat buildup, which can cause loss of working time and premature curing of the rubber. It is recommended that the container be filled to no more than 1/3 the container height to alllow sufficient room for expansion during the deaeration procedure.
  2. For these products requiring deaeration, place mixed material in a vacuum chamber and exert 29 inches Vacuum on the material. Some products will require that the vacuum be inturrupted or "bumped" several times before the material crests and falls by itself. After the matieral has receded, keep the mixed material under full vacuum for a minimum of 15 minutes. Bleed air slowly into the chamber until atmospheric equilibrium is reached. Remove mixed and vacuumed material from the chamber. The material is now ready for pouring.
  3. Some Bluestar Silicones Aerospace and Industrial products have a very long mixed pot life. Storing the mixture in a tightly sealed container at 0°F (-18°C) may extend the pot life even longer. Care should be taken when using this method to prevent moisture from condensing on the inside of cold containers and contaminating the mixture.
Please consult the Safety Data Sheet of this product.


BLUESIL V-612 is a black, thixotropic, two component, addition cure aerospace sealant designed as a vane potting and damping material. BLUESIL V-612 is qualified to Pratt & Whitney engine specification PWA 404-2 and Lockheed Spec. G40.1384.

Kit Matching: BLUESIL V-612 is kit matched when manufactured. This product should be processed using the specific matched Part A and Part B units supplied with the kit. Using a different lot of Part A or Part B may affect the properties of the product.


2 Part RTV


  • Aircraft jet engine vane potting and damping.

Asia Pacific;Europe Middle East Africa;Central and South America;North America

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Hardness> 25MonocompASTM D 2240sh.A
Elongation> 125MonocompASTM D 412%
Tensile strength> 700MonocompASTM D 412psi











































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