FDA
FDA 21 CFR 1040.10 - Laser Product Performance Standards
Alessandro MorettiPh.D.Italy
Laser-Based Additive ManufacturingPublished
Dec 10, 2025
Aluminosilicate Glass Laser Cleaning
Laser cleaning parameters and specifications for Aluminosilicate Glass
Laser-Material Interaction
Thermal Destruction
1,473
K
638
1,473
2,426
Laser Absorption
0.05
0.01
0.05
7.4e4
Laser Damage Threshold
8.5
J/cm²
2.4
8.5
15.6
Ablation Threshold
2.8
J/cm²
0.64
2.8
13.1
Thermal Diffusivity
5.3e-7
m²/s
0
5.3e-7
1e-5
Thermal Expansion
3.8e-6
1/K
1e-6
3.8e-6
9.7
Specific Heat
740
J/(kg·K)
120
740
900
Thermal Conductivity
1.1
W/(m·K)
0.77
1.1
36.7
Laser Reflectivity
0.04
0.03
0.04
3.8
Aluminosilicate Glass Laser Cleaning Material Characteristics
Density
2.5
g/cm³
2.1
2.5
2,625
Surface Roughness
0.1
μm
0
0.1
0.2
Tensile Strength
750
MPa
7
750
733
Youngs Modulus
85
GPa
60.8
85
6.1e10
Hardness
0.85
GPa
4
0.85
2,310
Flexural Strength
900
MPa
10
900
780
Oxidation Resistance
12
μm/year
0
12
2,177
Corrosion Resistance
0.92
mm/year
4.8e-5
0.92
1.6
Compressive Strength
750
MPa
620
750
2,170
Fracture Toughness
4.5
MPa m^{1/2}
0.56
4.5
2.6
Electrical Resistivity
1e14
Ω·m
9.5e9
1e14
1e16
Aluminosilicate Glass surface magnification
Before Treatment
When examining the contaminated aluminosilicate glass surface at 1000x magnification, you notice irregular clumps of debris scattered across it, dulling the overall texture. Fine particles adhere stubbornly, creating a bumpy and hazy layer that obscures the underlying material. This buildup makes the surface look worn and inconsistent under close inspection.
After Treatment
After laser treatment, you observe a remarkably even and polished surface emerging clearly at the same magnification. The debris vanishes completely, leaving behind a sleek, reflective finish without any remnants.
Regulatory Standards & Compliance
ANSI
ANSI Z136.1 - Safe Use of Lasers
Aluminosilicate Glass Laser Cleaning Laser Cleaning FAQs
Q: How can I safely laser clean Aluminosilicate Glass without causing cracks?
A: We've found that Aluminosilicate Glass holds up much better than standard soda-lime glass during laser cleaning because of its superior toughness and resistance to thermal shock. In our experience, you start with lower pulse energies to gently remove contaminants, allowing the material's inherent strength to prevent micro-fractures that plague softer glasses. This approach keeps the surface intact while contrasting sharply with how regular glass might shatter under similar heat buildup. Just watch the dwell time closely to avoid any localized overheating at the end.
Q: What's the best way to remove stubborn stains from Aluminosilicate Glass using lasers?
A: When tackling tough stains on Aluminosilicate Glass, we typically contrast it with borosilicate types, where higher absorption leads to quicker but riskier ablation. Aluminosilicate's lower light uptake means you need steady, focused passes to build enough energy without overwhelming the surface, ensuring clean removal every time. We've seen great results by adjusting beam overlap slightly
