CASE STUDY · Functional Surface Processing

Single-Side Ground Glass Processing Case Study

While protecting the other functional surface, we produce a uniform ground finish on one specified side, controlling roughness consistency, edges and cleanliness.

Single-side ground glass processing workshop

Single-side ground glass inspection and delivery

Project Overview

The complete route from material confirmation to finished-part delivery

Single-side ground glass can be used for diffusion, matting, bonding or functional support. The key to processing is to define the ground face and the protected face, control surface uniformity, and avoid abrasive, particles and handling contamination affecting the other functional face.

Typical materials: Borosilicate glass, fused quartz, alkali-free glass and others
Main operations: Cutting, single-side lapping, edge grinding, cleaning, inspection
Control focus: Ground-finish uniformity, protected face, roughness, cleanliness
Applications: Diffusers, bonding substrates, sensing and laboratory components

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ENGINEERING GUIDE

Turn "ground finish" into measurable functional requirements

Lighting projects care about haze and angular distribution; bonding projects care about interfacial adhesion; mechanical projects may need only controlled roughness; appearance parts care about colour and uniformity. Do not write only "single-side ground" - state the use and agree the acceptance method.

Applications

Where it can be used

Diffusers in LEDs, backlights, light sources and inspection systems
Instrument scales, projection, focusing or matte screens
Functional substrates before adhesive bonding, coating, printing and encapsulation
Rough functional surfaces for sensors, laboratory equipment and microfluidic components
Viewing components that transmit on one face and are matte or anti-glare on the other

Material Selection Logic

Why glass

A glass substrate offers a dimensionally stable, heat-resistant, chemically resistant and cleanable functional surface. Single-side grinding adjusts the surface texture while protecting the other face. A mechanically formed rough surface has no coating delamination risk, but scatter, uniformity and cleaning behaviour still need to be confirmed on samples.

Material Selection

Common materials and their applications

Material	Applications	Selection focus
BOROFLOAT® 33	Industrial diffusing, bonding and laboratory components	Heat and chemical resistant, with good all-round machinability
Fused Silica	UV, high-temperature, low-CTE or high-purity environments	Processing cycle time and cost are usually higher
EAGLE XG® / alkali-free glass	Thin functional substrates for electronics, thin films or low-alkali use	Protect the pristine surface of the other face
Aluminosilicate Glass	Thin, high-strength or subsequently strengthened applications	Grinding, holes and slots, and strengthening sequence are evaluated together

Typical Parameters

Common enquiry parameters

Item	Common starting points or wording	Engineering notes
Thickness	BF33 typically 0.10-3.00 mm	Other materials and thicker specifications are evaluated to drawing
Ground roughness	BF33 can be evaluated at Ra 0.10-0.40 μm	State the instrument, scan length, filter and measurement points
Haze / total transmittance	Diffusing projects should define both	Ra does not replace haze and angular distribution
Gloss	Appearance or matte projects specify the test angle	Recommended to use an approved sample or limit sample
Uniformity	Specify centre, edge and multi-point variation	Define large areas and local zones separately
Protected face	Specify Scratch/Dig or appearance limits	Define orientation for processing, handling and packaging

Structure and Function

What it usually needs to look like

Commonly full-area single-side ground plates, locally ground windows, ring or border grinding, composite structures with a transparent centre, and dual-function substrates ground on one face and polished on the other. Local grinding requires the boundary and transition zone to be marked.

Diffusion and light uniformity, reducing hot spots
Matting and anti-glare, reducing specular reflection
Form a controlled texture for bonding or coating
Create a controlled friction, wetting or scattering interface

Performance Requirements

Performance items recommended for confirmation

Ra, haze, total transmittance and gloss
Surface uniformity from centre to edge
Scratches and digs on the protected face and the appearance of the visible area
Low residue, low particles and ease of cleaning
Edge integrity and front/back identification

Preparing Your Enquiry

Please provide in the drawing or enquiry

Grinding application, material, size and thickness, full-area or local zone, target Ra/haze/gloss, protected-face standard, colour or limit sample, edges, subsequent bonding/coating, quantity and packaging method.

The parameters above are for preliminary material and process selection and do not constitute a uniform guarantee for all dimensions, thicknesses and materials. Final specifications, measurement methods and delivery standards are governed by the drawing, samples and order documents confirmed by both parties.

Functional face definition

Specify the ground face, protected face, effective area and roughness or appearance requirements in the drawing.

Single-side ground glass processing and material preparation

Single-side ground glass processing inspection

Masking and single-side processing

Protect the non-processed face and select suitable abrasive and process cycle according to the material and target surface.

Edge and particle control

Complete outline and edge treatment, reducing edge defects and migration of abrasive particles to the functional face.

Cleaning and uniformity check

Remove process residue and check ground-finish consistency, protected face appearance, dimensions and packaging condition.

Start material selection and processing requirements from the same drawing

Send the drawing and key acceptance items and we will assess the project together with the material and process route.

Email Your Drawings Contact the Engineering Team