Shane,
From your experience with the two products shown, regular and low viscosity, does the low viscosity flow deeper in narrower places? The manufacturers technical sheet does not explain where one product has a benefit over the other in this application of filling cracks and splits in weathered wood. I have a similar application and was looking for a two- part epoxy that would seal wood in an outdoor environment. In my application the wood structure is sound and way too expensive to replace.
Thank you.
Craig