I don't doubt there are are lots of people who have success with using a CA finish, it is certainly the popular choice in the USA. I used it myself for a while but always felt that there must be a better way. My main reasons for no longer recommending it are firstly, the number of posts that I see on forums and groups from people experiencing problems of failure of one kind or another whether it be bloom, cracking or just difficulties with application. This suggests to me that it is simply too temperamental and sensitive to moisture, temperature and other climatic factors and inevitable vagaries of the timber substrate to recommend as a first choice. But second, and more important, is the issue of the fumes which are known to cause allergies an some individuals and the impact of which upon human health is not properly known even by the health experts. For me this conclusion to the executive summary of the Concise International Chemical Assessment Document 36 to which I provided a link in the OP says it all:
"There are limited exposure data available, espe-
cially for non-occupational settings. Also, owing to the
limited toxicological database, it is difficult to make
definitive comments about the potential risks to human
health. "
I cannot in all conscience continue to recommend to other people that they regularly use a product whose impact upon human health is unknown.
If others choose to use it themselves, play it up as the new messiah of finishes, or recommend it to others that is entirely up to them. Just saying (whatever that means).
