How to Handle and Clean Fused Silica Flat Mirrors Safely

Quick Answer

Always wear clean gloves, use a gentle air duster first, and clean with optical-grade solvent and lens tissue in a single pass to avoid scratching your fused silica flat mirror.

Safe Handling & Cleaning Steps

1. 1. Put on Clean Gloves: Use powder-free nitrile or latex gloves. Skin oils can etch the coating and attract dust. Never touch the mirror surface with bare fingers.
2. 2. Remove Loose Dust with Compressed Air: Use a filtered air duster or a squeeze bulb. Hold the can upright and spray from a distance of 6–12 inches. Do not use canned air that may spray liquid propellant.
3. 3. Prepare Cleaning Solution: Use an optical-grade solvent such as isopropyl alcohol (99% pure) or a dedicated lens cleaner. Apply to a lens tissue, never directly onto the mirror. Avoid household glass cleaners that contain ammonia or abrasives.
4. 4. Wipe in a Single, Gentle Stroke: Fold a clean lens tissue, moisten it slightly, and drag it across the mirror surface in one continuous motion. Do not rub back and forth. Reusing a tissue can grind particles into the coating.
5. 5. Inspect Under Bright Light: Hold the mirror at an angle under a bright white light. Look for streaks, lint, or remaining spots. Repeat steps 3–4 if necessary. If you see scratches, stop cleaning and consult the manufacturer.

Product Facts

• Fused Silica Precision Quality Flat Mirrors, Protected Silver: Fused Silica Precision Quality Flat Mirrors, Protected Silver offer Ravg. >97.5% from 450–2000nm and Ravg. >97% from 2–10 microns, with 1/10 wave surface accuracy. The protected silver coating delivers broad spectral performance but requires gentle cleaning to avoid damaging the reflective layer.