I am considering TWP 100 for a 12-year-old heart redwood deck that is holding up well. I've used the Sikkens SRD 250 Natural the last two applications. Does the TWP 100 come in a Natural? What would be the most comparable color? Also, I assume I'll have to strip, clean, brighten beforehand, correct? I live in Napa area of California. How many years can I expect the treatment to last? (I'm having the TWP 100 sent to a friend in Nevada.)
TWP 100 does not come in a Natural but the TWP 1500 does and that is allowed in CA while the 100 Series is not so you will need the 1500 Series. TWP needs to be reapplied every 2-3 years on average.