The Ultraseal Resin Transfer System (R.T.S.) employs
a separate sealant reservoir and autoclave in order
to achieve a dry / wet vacuum impregnation cycle.
Dry Vacuum
The charge basket is lowered into the autoclave.
Within the autoclave the charge basket is subjected
to a high speed vacuum. Simultaneously the reservoir
is subjected to a similar vacuum.
Resin Transfer
The sealant is transferred from the reservoir to
the autoclave.
Impregnate / Wet Vacuum
The vacuum in the autoclave is maintained until
the components are thoroughly impregnated. Then
the valve is opened to return the autoclave to atmospheric
pressure, further forcing the sealant into the porosity.
Resin Return
The autoclave lid opens and the charge basket is
removed and transferred to the next station. A vacuum
is generated in the reservoir and the sealant is
transferred from the autoclave back into the reservoir.
The subsequent treatment cycles follow:
Drain
With the basket hosted over the drain station, the
low viscosity sealant drains quickly and is returned
to the autoclave. An automatic rotational drain
station is available as an option.
Wash
The Components are washed by agitation, room temp.
water, to remove residual sealant from the component
surfaces.
Cure
Finally, the process basket is lowered into water
maintained at 90 deg. C for 10 minutes allowing
the sealant to polymerize. The components are now
ready to use.
The Process