I have now Jaxida covers for my ASH26E. No problem of humidity inside
the engine bay because the doors are closely closed. I even think that
without covers, no humidity would enter the engine bay.

The problem is to protect the gelcoat against UV thanks to a cover.
The new plastic layer from Jaxida is more fragile than the one I had
some years ago. Now, only after 2 years, the plastic is becoming
brittle. It seems to be at an end of life. Basically, the current
Jaxida covers seems to have a lifetime of about 2 years while in the
past, it was about 5 years.Considering the high price of Jaxida
covers, I am not very happy to detect that my Jaxida covers are death
only after 2 years. In addition, I did not wash them just for sparing
them against potential aggressive soap.

I received recently a sample from Emfo which seems to provide a more
robust external plastic layer. In fact, Emfo provides some kind of
tissue impregnated with a polymer. This external layer seems to be
more resistant (mechanically). This would be my current best choice
but the post from James D'Andrea worries me a little bit.

I sent an email to the British company announced in a previous post.
Still no answer.

There is also another manufacturer in France named : Aerobache. See:
http://www.aerobache.com/product_inf...roducts_id=178
In addition, they seems to have their product immediately for an
ASH26E. But they seems also to be quite expensive. I asked them for a
sample but did not reply.

Important aspects are the conditions of use:

In Belgium, I am using covers from March till end of September. Medium
average temperature is about 20°C, we could have hot day with burning
sun but most of the time we receive a lot of rain and associated humid
weather from the UK. (NW winds).

During winter, if samples are available I will try to be more
professional by testing in an appropriate way (IEEE or MIL standards)
the samples (UV resistance, humidity resistance etc)

Cheers,
Bruno