I used a product called Maxikote on my drywall 15 yrs ago. I got a beautiful smoothe plaster finish. It even whet over a plywood patch that was made. I want to do another room but the product is no longer available from El Rey Stucco. Does anyone know of a similar multi purpose plaster product I can use on drywall to get the same smooth plaster finish? All help and advice appreciated.

Thanks.