ABRON PIR-15 resin system has been developed for the manufacture of advanced composites for Space, Aerospace & Defense applications. This Polyimide based polymer can be used as a matrix material at temperatures upto 316^oC continuous applications and short excursions upto 361^oC. Of all the High Temperature materials this polyimide displays exceptional behavior in terms of processing properties, thermo-oxidative stability and retention of mechanical properties at temperatures in the 300^oC - 316^oC range.

The main applications of this resin system is in the manufacture of composites for aircraft industry for engine ducts, fan blades, inner cowls, swirl frames, nozzle flaps & fins and bodies of missiles, etc.

The resin system consists of three solutions ( 50 % solid loading in Methanol ) which have to be mixed ( under specific conditions and ratios ), before use. The resin can be used for making prepregs, filament winding or moulding.

STORAGE : Store all the three parts in deep freezer for long storage, separately.

General Procedure for the preparation of the resin solution :

Keep all the three solutions at RT for couple of hours, until the contents attain RT or ~ 25^oC. Take ABRON PIR-15 Part A into a clean, dry RB flask fitted with an agitator, condenser, thermo well & heating mantle. Place a Calcium Chloride guard tube on the condenser and start agitation. While under agitation, add ABRON PIR-15 Part B into it. Heat upto 45^oC and stir ( under dry conditions ) for 90 minutes. To this solution add ABRON PIR-15 Part C and further agitate ( at 45^oC ) for 60 minutes. Cool to room temperature and use immediately.

NOTE : It is very critical to use the exact weight ratios of individual solutions & also the sequence ( as mentioned above ) to prepare the solution, in order to get the appropriate properties.