At 09:44 04 March 2019, krasw wrote:
On Sunday, March 3, 2019 at 9:08:48 PM UTC+2, Martin Gregorie wrote:
Are silicone-containing polishes etc to be shunned?

Can anybody recommend an FRP repair publication that gives any more
details about dealing with contamination than the one I quoted above?


--
Martin | martin at
Gregorie | gregorie dot org

I know at least one refinish of a glider that was ruined because removal
of
silicone from surfaces was not done properly. They had to sand and paint
glider twice.

It is probably impossible to avoid silicon completely, many car waxes
have
it without any mention in specs. But if you have a chance of avoiding it,
please do.

I wax my glider with hard paste-style Collinite. With normal "easy to
apply"- fluid waxes (=most likely to have silicone) the wax wears off
pretty fast from leading edges.

One of my chums has done some research on polishes.
Most polishes and waxes contain silicone, here are the one’s that
don’t. Most were checked by looking at the Safety Data Sheet.

Vistal Cleaning: “One boat cleaner”.
Boatsheen: “Best Brazilian boat wax” – carnauba wax blended into a
cream.
BulletPolish: “Carnauba Quick Spray wax” – a cleaner with wax but no
abrasives.
Yachtca “High gloss finish” – a polishing and waxing paste.
Starbrite: “Presoftened boat wax” – based on carnauba wax but
softened for hand application.
Starbrite: “Marine polish” – polishes and waxes (Carnauba not
mentioned).
Starbrite: “Hull cleaner”. (NB Premium and products with PTEF contain
silicone.)

The 3M products Perfect-it Light cutting Polish & Wax and Perfect-it Boat
Wax both contain silicone. Meguiars Boat/RV pure wax contains silicone,
don’t know about Meguiars Flagship Marine wax.

Putting the company name into Google finds all of the above.

From the above info the Starbrite range or the Vistal Cleaning “One boat
cleaner” with Boatsheen “Best Brazilian boat wax” look attractive. I
guess the only way to evaluate them is try them?

(I use the Vistal product on my LS8 and Cobra trailer to clean the surfaces
prior to polishing and it works really well.)

Hope this helps. Mike