The mixture is stirred, then poured over the filler material, usually no more than two thirds of the way to the top. This assembly is outgassed till a vacuum of 100 microns is reached, usually in about 10 minutes depending on the size of the jig etc. When the vacuum is broken, the epoxy is forced into the filler material by atmospheric pressure. Bake at 70 C overnight. Parts A and B are stirred together, outgass to 100 microns vacuum, bake at 60 C overnight.
Material turns from red to black and the loss increases.
Stir components together thourghly, outgass to 200 microns, pour in to a preheated jig and bake at 90 C overnight. Melt resin, mix in alumina, outgass mix to 1mm, add DEH20, stir, outgass again to 1mm. Stir W into RTV 560 and outgass. Then add the DBT, stir and outgass again. Let stand at room temperature for 4 hours to let cure, then bake at 40 C overnight.