How to incorporate fillers to reduce cost?
Fillers need to be incorporated by mixing under high shear with vacuum applied. This is required to remove trapped air and break up agglomerations to properly wet out filler with the resin. If filler is not properly wet out and air is trapped in the mix, physical performance of the cured system will be compromised. If fillers are to be incorporated on the shop floor, it is best to add them to the resin that is already mixed with the hardener in the correct ratio. Using this method will eliminate the necessity of having to re-calculate the mix ratio based on the extra fillers.