Originally Posted by Aquabelle
... I would be interested in hearing from anyone who has experience of using semco in tropical or subtropical conditions. my understanding is that it is likely to only last 12 months before a new application is required and while applying is quick and easy the cost of the product itself is very high
We’ve been using Semco since the late 90s. On our sailboat we replaced the teak decks on the house and re-cut/re-caulked the side decks. We started using Semco on the recommendation of a guy who did teak decks for a living. At the time we spent 6 years in the tropics including 20 months in Australia. When we sold the boat after 10 years the decks looked great. We’ve owned Hobo now for 12 years and have used Semco since day one. We haven’t seen cold weather since 2008.
Here’s what Lena does: She cleans the decks using Cascade liquid dishwashing detergent mixed with water, 1/4 cup per 2 gallons of water. After wetting the decks she uses a 3M White Scotch Pad (the least aggressive) to clean the decks. After they’re dry, she uses a 3” foam brush to apply the Semco. After the first coat dries, she goes over it again, this time using a rag for applying the Semco. The process takes about a quart and 3 hours over the course of a day. She does this every six months. It doesn’t affect the non-skid properties of the teak and keeps them from drying out from what I can tell plus it keeps dirt from getting deep into the grain.
By the way, your decks look beautiful!