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Français (Canada)Glass End Finishes Explained
Choosing the correct end finish is critical to performance, safety, and fit. At Pegasus Glass, we offer a wide range of end-finishing options to match your functional, dimensional, and sealing requirements. Below is a brief description for our most common end finishes (in no particular order).
Saw Cut
Saw Cut & Chamfered
Saw cutting creates a clean, flat face suitable for basic sealing or mating surfaces. A chamfer is applied to the inside and/or outside edge to remove sharp corners and reduce the risk of chipping during handling or assembly. This finish offers improved durability while remaining a cost-effective alternative to grinding or fire polishing.
Saw Cut and Fire Polished
Saw cutting produces a clean, true face, which is then fire polished to remove all sharp edges inside and out. Fire polishing smooths micro-chips and strengthens the glass edge. With a square, sealed face, this end finish is ideal for tight-tolerance applications where face sealing is required and edge damage must be minimized.
Cut, Ground & Chamfered
Saw cutting provides an initial clean face, which is then precision ground flat and square to ensure parallelism. A chamfer is applied to remove sharp edges and reduce stress points. This finish is available on tubing from approximately 1 mm to 100 mm outside diameter and is used where tight dimensional tolerances are critical.
Thermal Cut
Thermal cutting separates glass tubing using controlled heat rather than mechanical cutting. This method offers faster processing and lower cost but results in a natural break edge that may not be perfectly square and can retain sharp or uneven surfaces. Thermal cut tubing is commonly used as a blank for secondary processing.
Thermal Cut & Fire Polished
Thermal cut tubing is fire polished to remove sharp edges and reduce edge damage. Fire polishing smooths the break edge and improves handling safety, making this finish suitable as a blank for further processing such as grinding or forming.
Thermal Cut & Chamfered
Thermal cutting is followed by chamfering to remove sharp edges and reduce stress concentrations. While the face may not be perfectly square, this finish provides improved edge safety and durability without the need for full polishing or grinding.
Flat Bottom (Closed End)
Flat bottom tubing features one end formed and sealed closed, typically through fire forming. The closed end is smooth and structurally sound, providing a sealed tube without the need for additional fusing. This finish is commonly used for sample tubes, vials, reactors, and laboratory containers.
Drilling
Drilling adds precise holes to glass tubing, rods, or plate glass. Hole size, placement, and tolerance are carefully controlled to meet functional and assembly requirements.
Grinding
Drilling adds precise holes to glass tubing, rods, or plate glass. Hole size, placement, and tolerance are carefully controlled to meet functional and assembly requirements.
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Choosing the correct end finish is critical to performance, safety, and fit. At Pegasus Glass, we offer a wide range of end-finishing options to match your functional, dimensional, and sealing requirements. Below is a brief description for our most common end finishes (in no particular order).
Saw cutting produces a clean, true face using precision diamond tooling. This finish provides a flat surface suitable for basic sealing or mating applications and typically results in a lightly frosted appearance. Sharp edges may remain on the inside and outside of the tube.
Saw cutting creates a clean, flat face suitable for basic sealing or mating surfaces. A chamfer is applied to the inside and/or outside edge to remove sharp corners and reduce the risk of chipping during handling or assembly. This finish offers improved durability while remaining a cost-effective alternative to grinding or fire polishing.
Saw cutting produces a clean, true face, which is then fire polished to remove all sharp edges inside and out. Fire polishing smooths micro-chips and strengthens the glass edge. With a square, sealed face, this end finish is ideal for tight-tolerance applications where face sealing is required and edge damage must be minimized.
Saw cutting provides an initial clean face, which is then precision ground flat and square to ensure parallelism. A chamfer is applied to remove sharp edges and reduce stress points. This finish is available on tubing from approximately 1 mm to 100 mm outside diameter and is used where tight dimensional tolerances are critical.
Thermal cutting separates glass tubing using controlled heat rather than mechanical cutting. This method offers faster processing and lower cost but results in a natural break edge that may not be perfectly square and can retain sharp or uneven surfaces. Thermal cut tubing is commonly used as a blank for secondary processing.
Thermal cut tubing is fire polished to remove sharp edges and reduce edge damage. Fire polishing smooths the break edge and improves handling safety, making this finish suitable as a blank for further processing such as grinding or forming.
Thermal cutting is followed by chamfering to remove sharp edges and reduce stress concentrations. While the face may not be perfectly square, this finish provides improved edge safety and durability without the need for full polishing or grinding.
Flat bottom tubing features one end formed and sealed closed, typically through fire forming. The closed end is smooth and structurally sound, providing a sealed tube without the need for additional fusing. This finish is commonly used for sample tubes, vials, reactors, and laboratory containers.
Drilling adds precise holes to glass tubing, rods, or plate glass. Hole size, placement, and tolerance are carefully controlled to meet functional and assembly requirements.
Grinding refines glass surfaces to improve flatness, squareness, and dimensional accuracy. It is commonly used where tight tolerances, improved fit, or parallelism are required.
Still Have Questions? Get In Touch.