Welcome to PL! First bit of advice, it's good to fill out the location section of your profile. It lets us know where in the world you are and in some instances, there may be forum members that live close that can help out as we have people from all over the world here!
Glycol foggers, hazers, even cigarette smoke (depending on your laws on smoking in clubs) can gunk up a projector. I see that this projector is fan-cooled which exacerbates the problem. For forced fan-cooled projectors, you can minimize gunk build up by using a filter on the air intake (be wary as it will reduce airflow)
For cleaning optics, don't use store-bought rubbing alcohol and don't use q-tips. The IPA at the store will leave a film on the optics and q-tips will scratch them. Over time, cleaning this way will destroy optics. The less you have to touch the optics, the better. It is also absolutely worth cleaning out the inside of the projector. The cleaner everything is, the better.
Clean out the dust and residue first. One of the things I like to use is a low speed blower and a soft paint brush (components only, keep away from optics).
For optics, blow off surface dust with an air duster or a bulb. Try to be gentle, a strong blast of air could break an optic loose. Use the "First Contact" cleaner that StanWax sells. That stuff works great on optics. For further cleaning, use methanol (if you can get it) or a decent grade of acetone with an optic lens tissue and perform some of the cleaning techniques here: https://www.newport.com/n/how-to-cle...tic%27s%20face.
This will clean up beam scatter quite noticeably and make your beams look sharper and a tad brighter.
Last edited by absolom7691; 06-16-2020 at 16:20.
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