Technical Documents

Technical Documents


Low Scatter, High Precision Mirrors

Round and Elliptical Mirrors

High Precision Processes Set Finishing Company Apart

Surface Finishes has developed a process for producing monolithic aluminum mirrors with Angstrom level surface roughness using a proprietary Chemical Mechanical Planarization (CMP) technology. Click here to read the full article.


Technical Data and Conversion Factors

Low-Scatter Optical Surfaces-Chemical-Mechanical Polishing Shines Mirrors

Measuring Flatness with a Cartrilamp

Product and Services Brochures

Surface Finishes Overview

Surface Finishes offers a wide range of high precision finishing services and metrology capabilities to meet your most challenging dimensional, geometric and surface finish specifications.

Precision Lapping

SF Precision LappingSurface Finishes has long been a recognized leader in the precision lapping field.  We have pioneered various micro-inch finishing procedures to achieve superior results.  This experience, applied to your problems, ensures the highest quality geometric and dimensional accuracy and surface finishing.

Low Stress Grinding

Surface Finishes has the facilities and skilled craftsmen to give you the finest results on all types of precision low stress grinding.  We have the capacity to handle a wide range of shapes, tapers, sizes and materials.  Microinch finishes can be supplied to your specifications; tolerances in the range of 5 to 10 microinches accuracy for roundness, straightness, cylindricity and common sizing.

Precision Honing

Surface Finishes’ honing techniques, developed and used in our plant, enable us to produce micro-finishes that provide unmatched quality and accuracy.  Master craftsmen, skilled in all phases of surface finishing, give you a high degree of honing perfection to meet your most demanding specifications.

Optical Flats and Prisms

Surface Finishes offers a full line of standard and custom optical flats and prisms for your precision measurement needs.  Whether you need a low-cost option like borosilicate glass for your production environment or a high-quality material like Quartz or Zerodur for high precision measurements and final QC, we can help you.

Single Point Diamond Machining

Surface Finishes’ single-point diamond fly cutting machines are custom designed to produce accurate and precisely controlled flat surfaces and geometries involving combinations of flat surfaces. Our specialty machines are well suited for applications such as heat sinks, lithography reticle transfer cases and precision mirrors.


Surface Finishes has a comprehensive suite of metrology tools and methods to quantify results and validate that the parts we finish meet your specifications for geometric and dimensional accuracy and surface finish.


Since 1949, Surface Finishes has been a recognized leader in precision surface finishing technology.  We combine craftsmanship with state-of-the-art technology to yield outstanding results on planar, radial and spherical surfaces.


Quickly shows flatness accuracy to millionths of an inch leading to  speedy inspections, increased efficiencies, and simplified quality control.  Designed for use in quality labs or on shop floors.


CMPC Surface Finishes
39 W. Official Rd.
Addison, IL 60101-4592
Telephone: (630) 543-6682
Fax: (630) 543-4013

Technical Resources