Originally Posted by acesimmer
So I mixed up 50/50 part A and B and stirred for 30 seconds. Into the mold that was sitting in the pressure chamber. Lock down the lid and apply 20 PSI. Total time 1:30 min. Picked up the remaining resin in the mixing cup and getting quite hot. 3 mins and the mixing pot was rock hard and beginning to cool down. Gave it ten minutes then cracked to pot. Out popped a perfect radial engine in a total time of twelve minutes. Holy cow Batman!!. I made another five engines in an hour one after the other. I could go into production at this rate and the weight is only 48 grams so nice and light. It used to take 8 hrs plus with the older resin.
Some folks will brush aluminum powder into the mold and cast the PU behind to get more of a metal finish straight out of the mold. The engine can be weathered and detailed from there. Nice work!