Materials / Garolite CNC Machining

Garolite CNC Machining


Get instant quotes on custom Garolite machined parts with our Online CNC Machining Service. Make quick-turn prototypes and production parts in days with free standard shipping on all US orders. ISO 9001:2015, ISO 13485, and AS9100D certified. ITAR registered.

CNC-machining-Materials-Garolite
CNC Machined Plastics

About Garolite for CNC Machining

Garolite is a thermoset composite made from fiberglass and phenolic epoxy resin. As a thermoset, garolite cannot be melted and reformed. If it is heated above its peak operating temperature, it breaks down chemically and will not retain its properties once cooled. This makes injection molding in garolite impossible. CNC machining in garolite is the only method of manufacturing complex parts with this material.


Garolite is a glass-reinforced epoxy composite with a high strength-to-weight ratio and excellent corrosion and moisture resistance, making it ideal for marine applications. It is also fire-resistant and a great electrical insulator, making it a material of choice for electronic circuit board substrates. CNC Plastics
HDPE CNC machining
Acetal (Delrin) CNC machining
Polypropylene CNC machining
UHMW-PE CNC machining
Nylon 6/6 CNC machining
Acrylic CNC machining
ABS CNC machining
Polycarbonate CNC machining
PEEK CNC machining
PTFE-Teflon CNC machining
Garolite CNC machining
PVC CNC machining
ULTEM CNC machining

Garolite at a Glance





Applications Advantages Disadvantages Lead Time Tolerances
BPA-free food containers, electrical equipment, household appliances Low density, chemically resistant to a range of acids and bases, high fatigue resistance Not suitable for high-temperature applications, degrades when exposed to UV light Starting at 2 days Standard ±0.010"; ±0.002" are achievable; sub-±0.002" are available after manual review




Garolite G-10 (FR4)

CNC machining in Garolite G-10 (FR4) produces parts that are ideal for corrosive or high-moisture applications. Typically, these combinations of environmental conditions are found in the marine industry, where garolite is used for engine components such as mounting brackets and applications that require electrical insulation and mechanical strength.





Generic Garolite Properties

Tensile Strength, Yield (MPa) Elongation at Break (%) Hardness (Rockwell M) Heat Deflection Temperature (°C) at 0.46 MPa Melting Point (°C)
262-310 449 108 UL94 V-0 142




Finishes Garolite is typically a green to yellow-green material but is also sold in black. It does not take well to polishing due to its fibrous composition. Typically, polishing its matte surface finish will not buff out to a shine.
As Machined: Garolite generally has a smooth matte finish after machining. This means that parts left in their as-machined state won’t compromise the aesthetic appeal. Bead Blast: Parts manufactured in garolite can be bead blasted to remove any uneven surfaces produced during machining.
Maximize Collaboration with Teamspacee
Cost-saving Design Tips Garolite is a high-cost engineering plastic, and as such, it is important to limit manufacturing costs where possible.

Design to standard stock sizes:

Garolite is limited to bar, rod, tube, and sheet stock. When designing parts out of this material, take care to first learn the available stock sizes, then design to meet those constraints. Less material removed to achieve the final dimensions means increased cost savings both in terms of wasted material and time spent machining. CNC machining in garolite requires diamond or superalloy tooling, so it’s an expensive material to machine.
Maximize Collaboration with Teamspacee

Need Metal CNC Machined Parts?