I was told Pacific Kwila “bleeds or weeps” initially. How long does this last?
A. Pacific Kwila contains more oil or tannin in its pores than most other exotic hardwoods. When first exposed to moisture this surface oil/tannin will bleed or weep. The time period for this process to complete varies with timber, temperature and humidity. Generally, a good overnight rain will remove most of the oil but the actual time required varies. The oil/tannin is not sticky but can stain (looks similar to weak coffee) so it is important to cover or protect anything that could be stained below the deck during this initial period. Once complete, Pacific Kwila will not bleed again. A short inconvenience for 25-50 years of great service from your new deck!
