Can molybdenum mirrors be repolished?

Hardware settings, adjustments and fixes and other hardware discussion. This includes the "doHICky" Laser Power measurement system by Russ.
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Peter Brown
Posts: 8
Joined: Sun Apr 16, 2017
Location: USA, North Aurora, Illinois

Can these mirrors be repolished or should they be replaced. The surface is not damaged, but hazy.
Red/Black LaserCutter 60W - I believe to be: K40-0750 Laser
500x700mm bed
Home position - rear/left
Windows Version 7 Pro
RDWorks Version V8.01.19
Pete Cyr
Posts: 1964
Joined: Sun Nov 27, 2016
Location: Suffolk Virginia
Country: United States
Laser Machine Make or Type: Boss 1630
Laser Power: 100w
Laser Bed Size: 16"x30"
Home Position: TR
Control Software: RDWORKS
RDWorks Version: v8.01.18
Ruida Controller: RDC6442
Windows Version: Win 10
Accessories: roller rotary attachment

You can polish them but are you sure they need to be polished vice cleaned - acetone, lacquer thinner or white vinegar will remove most burned on residues (remember the fumes/smoke in the machine can be burned onto the mirrors by the laser reflecting down the path to the head- one reason for good fume extraction)

there is a product called "Never Dull" or you can use brasso and a cotton ball. Either will do a good job polishing
Location - VA
Equipment - Boss Laser 1630
Power - 100W
Laser Bed Size - 16" x 30"
Home Position - TR
Full RDWorks Version - v8.01.18
First name - Pete
Peter Brown
Posts: 8
Joined: Sun Apr 16, 2017
Location: USA, North Aurora, Illinois

I tried cleaning them with 90% isopropyl and plexiglass polish with little effect. I will try the acetone or vinegar. This is the first mirror after the tube.
Red/Black LaserCutter 60W - I believe to be: K40-0750 Laser
500x700mm bed
Home position - rear/left
Windows Version 7 Pro
RDWorks Version V8.01.19
Dave Vigness
Posts: 526
Joined: Sun Dec 15, 2019
Location: Kansas City - Rural
Country: USA
Nickname: Dave
Laser Machine Make or Type: Chine Red and Black
Laser Power: EF RF2 80W
Laser Bed Size: 20 x 26
Home Position: TR
Control Software: RDWORKS
RDWorks Version: 8.01.54
Ruida Controller: RDC6445
Windows Version: 7
Accessories: Power Switch for air assist / exhaust blower, Ma meter with switch for external digital, dual digital temp gauge, LED lights under gantry and and and.

Pics and a list here. https://drive.google.com/drive/folders/ ... sp=sharing

Look through Russ' videos, I believe he polished a set with rubbing compound, but I can't remember what video it was or what type they were.
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