There are two methods to choose from when applying Propshield
Antifouling Grease, Method A and Method B. As with most things each
method will need to be used two or three times before a user becomes
fully comfortable and confident with the processes involved.
For optimum results on metal surfaces we recommend Method A as metals
absorb PROPSHIELD more readily when hot, however if you are
uncomfortable using a blowlamp/heatgun or don't have access to either of
these tools then 'Method B' using mineral spirits (white spirit) will be only slightly
less effective as 'Method A'. For both Methods application is
preferable on a warm day above 15°C if possible, if the temperature is
lower than this warm Propshield up in a bucket/tub of hot water until
Click below to view the application guide for each Method (Note that
more detailed written instructions for both methods are included with
your Propshield purchase along with further detailed do's and don'ts)
(Further application photos can be seen
Suitable for all metal surfaces
including bronze, stainless steel and aluminium and is applied using
heat as a penetration catalyst (requires a heatgun).
painted surfaces as well as all metal surfaces and is applied using
mineral spirits (white spirit) as a penetration catalyst.
Coverage and Reapplication Guide
One 375g pot of Propshield is
sufficient to treat a 12 metre (40ft) boat twice (coating only
the props and shafts) so effectively you only pay half the RRP
per year. If you treat the props, shafts rudders and trim tabs
then one pot will only be sufficient for a 12 metre (40ft)
Alternatively one pot will cover two outdrive legs below the
water line on a 10 metre (33ft) boat.
Single screw craft and smaller vessels will have enough
PROPSHIELD for two or more seasons. Why not share a pot with
If the vessel is in commission for 6-7 months one application is
normally sufficient; this depends on local conditions and you
may need to coat more frequently.
If in commission for 12 months reapply more frequently, again
depending on local conditions.
We cannot give precise guidelines as each locality has different
fouling problems. We would advise Propshield users to follow the
initial guidelines and adapt these to suit your locality.