So you didn't use a clear coat on it? Are the teak cleaners worth it? I'm not worried about cleaning the swimstep, I'm partially disassembling that to do repairs and I have been sanding it. Just taking notes for the handrail and window frames for a future date.
Thanks
When I bought my boat, a 1980 Taiwanese gem, like yours, I was concerned about all of the bare teak, the decks on the boat and the swim grid. I tried a variety of products on both, and quickly learned that the advice of others to "let it go gray" was the best approach.
It is easy to see that sanding removes material, so if you want to keep the boat for a long time, you will eventually need to replace the boards that have been sanded too much and can no longer perform their designed function. What isn't so easy to see is that the two part "teak cleaners" remove as much wood with every application, though not as evenly as sanding. The colour of newly sanded teak is the perfect colour, alas is not one that can be preserved without either damaging the teak by sanding or using harsh chemicals. Oils like Deks Olje will temporarily hold that colour, but will require frequent re-coating and eventually a renewed sanding or chemical treatment to return to a "new" appearance.
After roughly 10 years, I added 13" of new teak to my swimgrid, to make it much more useful that its original skinny width allowed, and at that time I flipped the whole swimgrid over, thus presenting a new surface uniformly. I sanded and varnished the underside, which made keeping it clear of dirt, slime, green growth etc. required only a short blast with the power wash every haulout. It doesn't yet need any further attention. The exposed top side has had no treatment whatsoever, and gets wet whenever the boat moves at hull speed. It looks the same today as it has since it went "gray" within the first year, some 17 years ago. No noticeable amount of teak has worn away in that time, so I can and do expect it to last the remaining life of the boat without further treatment.
One other advantage is that I have good traction when wet, which I consider an important feature in that location.