Surface finish is more than appearance. It directly impacts finishing time, cost, and overall part quality.
V-Process castings deliver a smooth, uniform surface straight out of the mold. That means less grinding, less machining, and faster production.
What is Surface Finish (RMS)?
Surface texture is commonly measured using RMS (Root Mean Square).
- RMS measures microscopic peaks and valleys on a casting surface
- A lower RMS value = a smoother surface
- Smoother surfaces require less post-processing
How V-Process Compares to Traditional Sand Casting
Traditional sand casting methods use coarse sand and chemical binders to form the mold. This typically produces a rougher surface that requires additional finishing work.
V-Process uses a vacuum to hold the mold in place, allowing for much finer sand and a more uniform mold surface.
Typical Surface Finish Comparison
Traditional Sand Casting
- 250 to 500 RMS
- Rougher surface
- Requires grinding, smoothing, or additional machining
V-Process Sand Casting
- Approximately 125 RMS
- Smoother, more uniform finish
- Less secondary finishing require
Result: V-Process castings are about twice as smooth as traditional sand castings.
Why a Smoother Surface Finish Matters
A better surface finish provides real production and quality advantages:
- Reduces finishing time and labor costs
- Minimizes grinding and secondary operations
- Improves paint and coating adhesion
- Enhances visual appearance of the final part
- Delivers more consistent results from part to part
For many applications, this translates directly into lower total production costs.
Built-In Efficiency from the Start
Because V-Process creates a cleaner casting from the beginning:
- Less material needs to be removed later
- Machining time can be reduced
- Parts move through production faster
Instead of fixing surface issues later, you start with a better casting.
Compare Casting Methods
If surface quality, reduced finishing, or visual appearance are important to your application, it’s worth evaluating how V-Process stacks up.
Find out more on how V-Process compares to other aluminum casting methods here.
Ready to Reduce Finishing Time on Your Castings?
Talk with our team about your application and see if V-Process is a good fit.