Ekopel 2K Bathtub Refinishing Kit - Pour On Bathtub Paint White Gloss Finish Kit, 1 Coat Odorless Sink and Bath Tub Paint – Long Lasting Never Peel DIY Glaze for Tub, Made in USA – Bright Gloss White

I know you said you don’t want a kit but I’m gonna put this out there anyway. I applied this to my bathtub about 3-4 years ago and it’s as perfect today as it was when I installed it. https://www.amazon.com/dp/B07MCW3KJB