I sprayed this on Dishy's face when I installed it: Amazon.com : DuPont Teflon Snow and Ice Repellant, 10-Ounce : Home Pest Repellents : Sports & Outdoors
In the couple of days before I permanently ran the cable I left Dishy unpowered at night. One of those nights we received 4 to 5 inches of snow. When I looked outside in the morning Dishy was covered. I powered it up and, not surprisingly, it wouldn't connect. I left it on for about 30 minutes and the snow slid down 4 to 6 inches. I had a connection which I thought was amazing. Anyway, I didn't want to wait any longer so I placed the dish in 'stow' mode and the snow slid right off. I power cycled the dish and had full connectivity in a few minutes.
Btw, I've used that spray on plastic snow shovels and a cheap snow blower that's made of plastic and I've not seen any issues with those surfaces.
I found the stuff I use on my snowblower. Works great. I have had any issues with starlink dish icing up so I don't know if it would work or even be safe.
I started using this two years ago https://www.amazon.com/DuPont-Teflon-Snow-Repellant-10-Ounce/dp/B0031T82NO
Hasn't caused any issues and the snow slides right off. My local Ace Hardware has the best price I've found. I also use this on my snowblowers and snow shovels.
I sprayed this on my dish when I installed it over a year ago: https://www.amazon.com/DuPont-Teflon-Snow-Repellant-10-Ounce/dp/B0031T82NO
This is my second winter and the only time I've had snow build up is when I had the dish powered off. An hour after I powered it back up about 6 inches of snow slid right off.
I've used this same spray on plastic snow shovels and I've never seen an issue. Btw, I found it for half of Amazon's price at my local ACE hardware store.
This stuff works great.
DuPont Teflon Snow and Ice Repellant, 10-Ounce https://www.amazon.com/dp/B0031T82NO/ref=cm_sw_r_cp_apip_VKMLIwzdoWPuv
This liquid gold:
DuPont Teflon Snow and Ice Repellant, 10-Ounce https://www.amazon.com/dp/B0031T82NO/ref=cm_sw_r_cp_api_glt_i_BAP0ZK3EXWS0DE93DDR4?_encoding=UTF8&psc=1
Don't use PAM. They have dedicated snow and ice repellent sprays for this kind of stuff:
https://www.amazon.com/dp/B0031T82NO/ref=cm_sw_r_cp_apa_fabc_nul7FbEPQ5HZ8
I've used this on plastic snow shovels in the past and I haven't noticed any dulling of the surface or anything like that. I sprayed it on Dishy. I'm not sure that it helped, but it probably has.
My dish was unplugged during the night and I woke up to almost 4 inches of snow on the dish. I plugged it in and tested and, not surprisingly, I had no signal. I left it alone for 30 minutes or so and I checked the connection. At that point I had a poor connection but it was working. I looked at the dish and the mass of snow had moved a few inches but was still covering a large portion of the dish. I 'stowed' the dish and the snow fell right off. After a power cycle I had a good connection.
When I installed the dish I sprayed this https://smile.amazon.com/DuPont-Teflon-Snow-Repellant-10-Ounce/dp/B0031T82NO/ref=sr_1_1?dchild=1&keywords=dupont+snow+ice&qid=1605161609&sr=8-1 on it for just this reason. I use this on my snow blowers and even my snow shovels and it's wonderful. My snow shovels are plastic and I had never seen any discoloration or obvious surface damage from the use of this product so I felt comfortable using it on Dishy.
Deal link: Amazon
Deal link: Amazon
Deal link: Amazon
What are you using the coating for? AFAIK neither of these are food safe but are excellent for making surfaces hydrophobic:
DuPont Teflon Snow and Ice Repellant
That said, spray-on coatings will have a tendency to rub off.