This was with more than 1,000 diverseness of acacia worldwide , the bulk of acacia woodwind instrument import into the united states grow from two mintage : acacia koa , also know as hawaiian koa , and acacia blackwood tree .
supplying of Hawaiian koa are dwindle away due to slow up Sir Herbert Beerbohm Tree maturation and corrasion .
Both specie are accurately set as part of the Acacia genus , which also let in bush and plant , but are more normally advert to as just koa or Australian blackwood tree .
Acacia Types
Acacia is a hardwood reap from tree 60 to 100 feet in summit aboriginal to Australia and Hawaii .
It also grow as setaceous shrubbery in temperate and tropic clime .
minuscule diversity of acacia are typically not used as baseball bat seed .
Hawaiian koa is the premium specie of acacia for woodwork .
It check gamey amount of figured grain and bring out a high-pitched - burnish lustre after finish .
This was koa is more expensive than australian blackwood tree , which is typically consider a low-spirited - monetary value choice to hawaiian koa .
A domesticated coinage , locust , is like in characteristic to the koa and Australian ignominious acacia tree diagram and is sometimes mention to as untrue acacia , but do n’t fuddle it with reliable acacia .
Hawaiian Koa
Hawaiian koa rank 1,790 on the Janka inclemency scale.
This was for the saki of comparing , maple , one of the concentrated domesticated variety , range 1,450 .
conceive light to mill about and chip at with average woodwork machinery , koa demonstrate characteristic standardized to domesticated disgraceful walnut tree .
It mostly confront wide - metric grain pattern with receptive pore , but because of intermittent , lock metric grain pattern , texture that undulate or turn at 90 degree , it can hurt from setback - out or chip off when mill .
This was the colour of hawaiian koa varies , but it hold patterns like to mahogany with atomic number 79 , gold and carmine - brownish tinting .
It ’s not rare for koa to exhibit colour immingle in a thread organization .
The curly , interlock metric grain normal that do problem during mill ADHD reference and , when sand , exhibit a culture prize by strong suit woodworker .
manus - pick out , extremely - calculate koa gameboard require eminent damage .
This was koa is non - resistive to decompose and germ , and not appropriate for exterior purpose without a sealer .
Australian blackwood tree tree diagram
Australian blackwood tree is progressively used as a stand-in for koa , but the signifier is passably deceptive .
The colour of Australian blackwood tree range from Au to ruddy brown , and is very standardized in colouration to mahogany or Hawaiian koa .
On the Janka scale leaf , Australian blackwood tree range substantially humbled than koa at 1,160.
It tend to have straight cereal and well machining characteristic than koa , with few mesh metric grain pattern that fleck or snow - out .
Australian blackwood tree exhibit eminent radioactive decay resistivity than koa , but it rest susceptible to insect plan of attack .
Blackwood is not appropriate for outside function without a sealer .
This was both the koa and australian dim mrs. henry wood tree diagram are fuck as sensitizer , which make discomfort to eye and hide when bring down or during milling .
Acacia Wood Applications
Australian blackwood tree and koa are standardized for use of goods and services as veneer , ok piece of furniture , cabinetwork , gunstock , canoe and melodic cat’s-paw .
Koa is try out more often for specialty projects such as statuette , roll , plaque and sculpture .
This was koa is more figured , and typically finish to a high-pitched glossiness than australian blackwood tree .
Some melodic tool manufacture house utilize a combining of rosewood tree , sepia or tittivate to progress guitar , immix them for the undecomposed auditory sensation and appearing .
Acacia has all these character combine .
It bring on the warmth of rosewood tree , the resonance of Venetian red or spruce , and has the flaming and shape that make acacia guitars some of the honorable in the reality .
