Resak (Vatica heteroptera) 
	 
	Family: Dipterocarpaceae  
	
	Common names: Resak, Resak gunong 
 Distributed in: Malaysia (Oceania and S.E. Asia) 
 Common uses: Heavy construction, Light construction 
 Environment profile: Vulnerable
 
 Tree size: Trunk diameter is 150-200 cm  
	
	
	Colors: the heart isReddish brown, Whiteand the sapwoodRed, White.The grain isStraight, the textureMediumand the lusterMedium
	  
	
	Natural durability: Resistant to attack from pinworms (ambrosia beetles), Susceptible to insect attack 
 Kiln Schedules: Dry at a slow speed
 
 Kiln Drying Rate: Slow 
 Drying Defects: Internal Honeycombing Possible, Splitting 
 Ease of Drying: Thick Stock Requires Care 
 Blunting Effect: Little
 
 Boring: Fairly easy to very easy 
 Carving: Fairly Easy to Very Easy
 
 Cutting Resistance: Easy to saw 
 Gluing: Fairly Easy to Very Easy 
 Mortising: Fairly Easy to Very Easy 
 Moulding: Fairly Easy to Very Easy 
 Movement in Service: Fairly Easy to Very Easy 
 Nailing: Fairly Easy to Very Easy, Very Good to Excellent 
 Planing: Very Good to Excellent 
 Resistance to Impregnation: Permeable sapwood 
 Response to hand tools: Responds Readily 
 Routing recessing: Fairly Easy to Very Easy
 
 Sanding: Very Good to Excellent Results 
 Veneering qualities: Veneers easily, Veneers moderately easy 
 Steam bending: Unsuitable  		
	
	
	Screwing: Fairly Easy to Very Easy, Very Good to Excellent Results;	Turning: Very Good to Excellent Results		
	  
	
	Painting: Fair to Good;	Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Very Good to Excellent;
	  
	
	
    
    - Numerical data Metric
 
    - Numerical data English
 
    - Strength properties
 
    - References
 
     
     
     
     
	
      
        | 
        | 
        | 
        |  
      
      | Item | 
      Green | 
      Dry | 
      Metric | 
       
      
      
		| Specific Gravity | 
		 | 
		 | 
		 |  
     
		| Density | 
		 | 
		817 | 
		kg/m3 |  
     
		| Bending Strength | 
		 | 
		 | 
		kg/cm2 |  
     
		| Crushing Strength | 
		 | 
		 | 
		kg/cm2 |  
     
		| Hardness | 
		 | 
		 | 
		kg |  
     
		| Impact Strength | 
		 | 
		 | 
		cm |  
     
		| Shearing Strength | 
		 | 
		 | 
		kg/cm2 |  
     
		| Stiffness | 
		 | 
		 | 
		1000 kg/cm2 |  
     
		| Tangential Shrinkage | 
		 | 
		 | 
		% |  
     
		| Radial Shrinkage | 
		 | 
		 | 
		% |  
     
		| Weight | 
		 | 
		 | 
		kg/m3 |  
     
		| Maximum Load | 
		 | 
		 | 
		cm-kg/cm3 |  
     
		| Toughness | 
		 | 
		 | 
		cm-kg |  
     
		| Static Bending | 
		 | 
		 | 
		kg/cm2 |  
     
       |   
      
	   
        
        |   |   |   |  | Item  | Green  | Dry  | English  |  | Density  |   | 51  | lbs/ft3   |  | Weight  | 50  | 40  | lbs/ft3   |   |  
  
       Density (dry weight) = 61-67 lbs/cu.ft  Density (dry weight) = 53-60 lbs/cu. ft  Density (dry weight) = 46-52 lbs/cu. ft.  Density (dry weight) = 38-45 lbs/cu. ft.  
   
       Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15Fundter, J.M.,1982,Names for Dipterocarp timbers and trees from Asia,Pudoc, Wageningen, NetherlandsSymington, C.F.,1943,Foresters manual of Dipterocarps,Malaysia Forest Record,No.16 
	 
    
	
       
 |