When a bamboo cutting board is split, unless you take some action to cut the bamboo cutting board, cracks will spread quickly. However, half of the measures, such as filling up splits or trying to regroup them together, are rarely effective. The best way to do this is to separate the boards and glue them together. This procedure is similar to laminating two pieces of wood together, but when using a bamboo cutting board, you need waterproof, non-toxic glue, and good retention. Some brands of polyvinyl acetate (PVA) glue are suitable for this bill. They are like ordinary carpenter's glue, but they are yellow instead of white.
Pull open the cutting board in the direction of opening, or use a screwdriver to pry apart and open the halves. Minimize the fiber in the cracks as little as possible.
Turn over the two halves of the cutting plate and reinstall them, adjusting them to obtain the least noticeable dividing line. Use a pencil to draw four equidistance lines on the dividing line. These marks should be perpendicular to the crack and span it.
Separate the two halves and use a caliper to measure the thickness of the cutting plate. Adjust the caliper back to half of the distance and use it to mark the middle of the puzzle and draw it on each line drawn on the back of the chessboard.
Drill a hole about 5/8 in. deep on each mark with a drill bit and a 1/4 inch bit. This means that four holes are drilled in each half of the cutting plate.
A waterproof PVA glue was applied to one half of a 1 x 1/4 inch wooden pin and the glued end was inserted into one of the holes in one half of the cutting plate. In the same way, the pins are inserted into the other three holes in the half of the cutting plate.
Distribute the glue on the other half of the pin and follow the dividing line. Align the halves so that the first half of the pins fit into the holes in the second half and then separate the halves. Place the chopping block on a pair of bar clamps and tighten the clamps to pull the halves together. Do not attempt to wipe if glue leaks. Hold the cutting board tightly for 24 hours.
Remove the cutting board from the clip and scrape it off with a sharp chisel. Polish the sides of the board with a palm sander and No. 120 sandpaper and remove any irregularities along the dividing line. A further 150 grit sandpaper was used to polish the smooth surface, and then the final sanding with 220 sandpapers was sanded with a chipboard and then sanded with bamboo particles. Wipe off sanding dust with a damp cloth.
Finish the board with walnut oil, peanut oil or food grade mineral oil. Avoid using olive oil or other food-based oils to deteriorate over time. Loosely spread the oil on the sides of the cutting board with a cheese cloth and allow it to soak.
What you need
*1/4 inch drill bit
*8 wooden pegs, 1 1/4 inch
*Waterproof PVA glue
*2 bar clamps
*120-, 150-, and 220-Gravel sandpaper
*Walnut, peanut or food grade mineral oil
Bamboo splits when the bamboo becomes too dry and the fibers shrink. Always add fuel to the cutting board to avoid this situation.
Avoid using any type of traditional wood surface or stain on the cutting board. Wood finishes contain toxic chemicals that make your cutting board unsafe for food.