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					Originally Posted by migueldiaz
					
				 
				In western Visayas particularly in Panay, the sap from the breadfruit tree (local name is  kamansi) is traditionally used as blade tang adhesive.  
			
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 Migueldiaz, thanks, I recognized this as kluwih in Java. I will try to experiment sometime 

I read some articles about what might be used on mandau: nyatu/nyatoh and sambun, some mention getah merah and getah putih which might relate but I can't tell how they differ.
Attached is gum/resin product from Indonesian forestry dept. website.