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A Comparison
Dynax S50 is designed to protect
steel surfaces in extreme conditions. It’s well known
that vehicle cavities are subject to a wide-range of corrosive
environments, from salt spray to high humidity, heat, fresh
water and freezing. The cavity wax chosen must cope
with all these variables and continue to provide the necessary
protection - maintaining the structural integrity, safety,
and value of the vehicle. It’s common for manufacturers
of cavity waxes to quote salt-spray results in hours for
their cavity waxes and while the salt-spray test is severe
it’s been shown that waxes with very good salt-spray performance
can rapidly deteriorate when the environment changes, for
example after a period of constant salt-spray they swell
become bloated and detach from the surface in an atmosphere
of high humidity alone. Dynax S50 has been proven
to provide outstanding salt-spray protection and continuing
protection in changing conditions with no swelling or detachment
whatsoever. You’ll see below how Dynax S50 compared
with two extremely well known cavity waxes in constant salt
spray trials.
How Dynax S50 compares to leading
competitors:
(from left to right)
- Acclaimed Swedish Cavity Wax
shows high degree of failure.
- UK’s leading anti corrosion
wax shows total failure.
- Dynax S50 protected metal is
still in exceptional condition.
These standardised test panels have been removed from an
ASTM B-117 hot salt spray trial after an extremely aggressive
2000 hours. - the rear of the panels show that the steel
left unprotected is almost corroded through.
The panel fronts as removed are difficult to asses as corrosion
streaks and marks are left as during the test the unprotected
panel edges allow corrosion deposits to pour down the vertically
positioned panels.
After solvent washing the panel fronts any remaining waxy
film is removed, allowing inspection of the underlying surface.
Assessment of the product performance is then easy.
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Penetration Tests
If you decide to treat your car
or vehicle to additional corrosion treatment it’s important
to select a cavity wax that can penetrate into welded flanges
seams - these are the areas proven to be the first to corrode
- in fact the Swedish Corrosion Institute conducted a thorough
investigation into vehicle corrosion by sawing open the
bodies of 845 collision-damaged cars manufactured between
1994 and 1997, the corrosion observed in the flanges and
seams resulted in the recommendation that even on cars with
reasonably good cavity fluid treatment applied at the factory
a complementary treatment be used within 3-4 years of manufacture.
This investigation also proves, despite popular belief,
that modern cars just like classic and vintage ones require
after market rust proofing.
Dynax S50 has a high solids content
of over 50%, it’s this content that forms the anti-corrosion
coating, and whilst other high solids materials don’t penetrate
sufficiently Dynax-S50 creeps by capillary action deeply
into seams, flanges and folded edges, in side-by-side trials
Dynax S50 has been proven to creep significantly further
than other cavity waxes, some with solids contents as low
as 25%.
(from left to right)
- Acclaimed Swedish Cavity Wax
- UK’s leading anti corrosion
wax
- Dynax S50
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