I’m a new member and total woodworking noob from the Philippines. I just finished an 8’ x 43” x 3 3/4” slab table out of Magkono (iron wood), mounted on stainless steel legs—no screws, just two 2 x .3/4” cross-boards of Tugas glued to the underside of the slab, acting as stoppers and heavy-duty “velcro” in 2 places on either side of the bases’ flat bar frame. The slab came with cracks—end-grain cracks, on the top, bottom, sides etc… I successfully filled the top and bottom ones by flooding it with liquid epoxy after “squaring” it off. The dams I created around it to hold the epoxy for the sides, however, failed so I resorted to brushing it on (constantly until it gelled), thinking it would seep into the cracks and set. It’s been about a week since installation and I’m noticing some the cracks on the ends, specifically those that I had simply brushed epoxy on, starting to open up. Some of the underside “fills” appear to be opening up too, albeit, not as severely. The top “fills”, including the edges, with the exception of one or two spots, seem to be holding up pretty well, though.
It’s humid here and it’s the rainy season so I undestand it may be adjusting to the drier inside air. My questions are:
1. Am I set to see more fills giving in and/or further progression of existing cracks?
2. What of the finer ones… are these set to open like the larger ones, pictured?
3. Granted it reaches EMC and I somehow figure out that it has, will it be necessary to stabilize and refill the cracks, deep, with epoxy?
4. in relation to the above question, would building a dam around the ends be sufficient to get epoxy deep into the cracks or do I have to stand it up on one end?
5. Should I be worried that the underside cracks are opening up and the top ones aren’t? I’m concerned there’s sagging going on, although, I can’t imagine how with the way the base is designed. Perhaps cupping?
Any advice you guys can give would be greatly appreciated.