The relative hardness and softness of various woods isn’t just based on a feeling. Woods are ranked for durability using something called the Janka Hardness Scale. “The Janka Hardness Scale identifies at what point a 11.28-millimeter [0.444-inch] steel ball will embed itself halfway through a...
such as white poplar). It got its name because its flowers are similar to tulips, and yellow poplar is sometimes known as tulip poplar. Staining can have splotchy regions, and the pigment in a stain can leave specs in the wood. Therefore, preparation for staining is critical. Poplar paints...
Lemon I’d equate with Poplar on the’ toughness’ scale. It’s feature is it’s ‘consistency’ when carving; not something you need when slabbing together a cutting board IMHO. Also, the Lemon wood will stain too easily IMHO. 1 Reply J. Bloom Reply to cary mc donald 1 year ago...
What I’ve done is taken each of the four tests of wood strength (Janka hardness, MOE, MOR, and crushing strength) and found which species were the best and worst in that category, and then use those values as the upper and lower limits. (This is limited to the data I have on hand...
Red Oak and Sapele are substantially more similar in hardness. It is actually 16% harder. But, Sapele is more resilient to shock loads and more durable. Additionally, it has more bending strength and is tougher. Odor Sapele wood is one of the hardwoods that has a faintly sweet scent. It...
4.11). The bending strength and the hardness of the wood are two of the most important properties when considering tree species for railroad tie development. Chemical treatments (historically, creosote-based preservatives) are usually required to reduce the wood decay rate and extend the service ...
Wood suppliers have a specific definition of hardness. It's the force required to compress a 1/2-inch steel ball halfway into a plank of a specific species. That force is measured in pounds-force (lbf) or newtons (N). More Like This ...
Wood Properties Mindi has a density similar to Red Oak. On the Janka scale, a scale that rates wood hardness and mass mindi ranks at 1,055, while red oak ranks at 1,060. The difference in hardness between the two is almost imperceptible. Mindi is naturally resistant to decay and fungus...
While the purpose of densification is to improve hardness and other mechanical properties by increasing the density of wood, the goal of pleating is to improve its pliability. During bending, the buckled cell walls can straighten on the tensed side; thus, pleated wood has a reserve compared to...
Poplar wood has been used (10 wt%), as well as polyethylene wax (0.5 wt%) as a lubricant to improve processability [208]. As explained earlier, the purpose of a compatibilizer is to create new bonds between the matrix and load. Lignin has been studied not as a compatibilizer but...