Review on 🎨 High-Quality MPS Disposable Paint Spray Gun Cup Liners and Lid System, 50 Pack - Mini Size 6 Ounce (180ml) Kit - Includes 50 Cup Liners, 50 Strainer Lids, 1 Durable Cup with Retainer Ring, and 20 Plugs by Fred Griffin

I am very happy that some people have had success with this product. I want to be one of them. I've tried 10 different cups and lids to get a good seal and failed every time. The lid and cup "clicked" together and looked and sounded exactly like a 3M product. Unfortunately I kept trying as they worked initially but it all came out in the end and there was a lot of paint in the cup! The savings I was expecting from this purchase were already being eroded by spilled paint. Plus a strong aggravation. A restart is no fun on drip-sprayed surfaces. Luckily I managed to get enough 3M mugs to finish my job (none of them leaked). Those who have had success with these cups, how do you seal them so they don't leak? I have 40 left and would try again if I knew there was a way to avoid the leak.