For me, I'd be using West Systems with the 105 base resin and 207 hardener. Here's the write up from their website on the hardener:
[TABLE="class: techSpecTable, width: 100%, align: center"]
[TR]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]Mix Ratio, Resin:Hardener [/TD]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]3:1 by volume (3.5:1 by weight) [/TD]
[/TR]
[TR]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]Pot life at 72 F (22 C) [/TD]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]22 to 27 minutes [/TD]
[/TR]
[TR]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]Cure to a solid state [/TD]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]9 to 12 hours [/TD]
[/TR]
[TR]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]Cure to maximum strength [/TD]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]4 to 7 days [/TD]
[/TR]
[TR]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]Minimum recommended temperature [/TD]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]60 F (16 C) [/TD]
[/TR]
[TR]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]Pumps required [/TD]
[TD="class: techSpecCell, bgcolor: #D4DCE7"]300, 306-23 or 309-3 [/TD]
[/TR]
[/TABLE]
- Excellent long-term clarity due to improved chemistry and stabilization with UV filters
- Superior blush resistance
- Extended recoating time
- Excellent fiberglass wet out characteristics
- Ideal viscosity for buildup coats
- Excellent paint and varnish compatibility
- Excellent physical properties for bonding
207 Special Clear Hardener was especially developed for use with West System 105 resin in coating applications where an exceptionally clear moisture-resistant natural wood finish is desired.Improved formula chemistry allows for true clear cure with same UV stability without amber tint. An ultraviolet inhibiting additive improves the resistance of a West System 105/207 mixture to sunlight but the cured epoxy surface will still require the additional protection of a quality UV-filtering varnish.
207 is designed to self level for smooth finishes and to wet-out and bond fabrics. Although it provides good physical properties for general bonding applications, it is more difficult to thicken and less cost effective for this purpose than 205 or 206 hardeners. It's also used for laminating veneers where bleed through at joints may be exposed to sunlight.