Im not sure, but I think you're referring to a process known as vacuum bagging.
If you have a vacuum pump for degassing, you're 1/2 way there... That the big cost in vacuum bagging.
Next, you'd need the materials:
- Vacuum bag material and tape
- Your piece, resin, and fabric
- Peel Ply Fabric
- Breather Fabric
To run through the whole process is a bit lengthy, so google what you can and if you have any questions let me know!