Coin inlay

Not sure if this is the correct forum.

I am making a "Lazy Susan" and will be using an Australian Florin as a decorative inlay.

To protect the coin from tarnishing, can anyone suggest a finish or coating to apply to the coin.

Obverse
King George V - Thomas H. Paget
Legend : GEORGIVS VI : G : BR : OMN : REX FIDEI DEF
Reverse
Imperial Crown, Sword and Mace, Federation Star and Stars of the Southern Cross - William Leslie Bowles
Legend: Australia Florin 1901-1951
Composition
50% Silver, 40% Copper, 5% Zinc, 5% Nickel
Mass
11.31 g
Size
28.5 mm (1 1/8")
Actual Silver Weight (ASW)
0.1818 tr.oz.
Mintage
2,000,000
This Australian Florin was struck to commemorate 50 years of Australian federation in 1951 <fieldset class="fieldset"> <legend>Attached Thumbnails</legend> http://www.routerforums.com/attachme...federation.jpg
</fieldset>

im no expert maybe a clear two part resin or maybe glass inset over the top of the coin

JW...I agree with burnabybear, a two part resin would fit the bill. I use Inlace resin (InLace) for my inlaid canes. The resin is clear, non-yellowing, rock hard, and best of all it isolates the inlay from environmentally tarnishing effects.