T H U N D E R B I R D
Epoxy Bow Finish
ENDURANCE

ABSOLUTELY
the most durable protective
coating you can
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T H U N D E R B I R D

Technical Information

 

THUNDERBIRD EPOXY
TECHNICAL DATA

Hardness (Sward-Rocker)....................................... 65
Impact Resistance (22 gauge steel)..........................173 inch-lbs.
Flexibility (1/2" mandrel)
     a)  at -60 degrees F.  .......................................cracks
     b)  at room temperature....................................passes
     c)  at +180 degrees F.  ....................................passes
Tabor Abrasion (gms. wt. loss after 1000 cycles) ...0.035
Color (clear mixes, Hellige Comparator) ..................4.5
Chalking (300 hrs. in weatherometer) ......heavy (surface only: removable)

Weathering and Waterproofing... Virtually a complete moisture vapor barrier.  Surface exhibits moderate chalking after extensive exposure to ultraviolet (sun) light.  Four years exposure shows that chalking, on surface only, may be easily removed by washing or wiping with the underlying coating still having good gloss without a film breakdown.  The good film integrity indicates continued protection.

Corrosion Resistance ... Both vehicle and pigment contribute to the high degree of resistance to corrosion.

Gloss (Initial) ................................................................. 100
     a) after 300 hrs. in weatherometer ...............................  75
     b) after 600 hrs. in weatherometer ...............................  30
     c) washing after 600 hrs in weatherometer ...................  90

Heat and Cold Resistance
     Passes 25 cycle heat and cold test.
     (-65 degrees to +200 degrees F.)

HEAT RESISTANCE
     24 hrs. at 200 degrees F. ............................... No discoloration
       8 hrs. at 250 degrees F. ............................... No discoloration

     96 hrs. at 250 degrees F. ........................... Slight discoloration
       8 hrs. at 275 degrees F. ........................... Slight discoloration

     24 hrs. at 275 degrees F. ..................... Moderate discoloration
       8 hrs. at 350 degrees F. ..................... Moderate discoloration

     24 hrs. at 350 degrees F. ......................... Severe discoloration
       8 hrs. at 400 degrees F.  ........................ Severe discoloration

Temperatures to 500 degrees F. caused film to turn yellow and with continued exposures to brown, then black.  There was no carbonization and no effect to gloss.  Adhesion, chemical resistance and electrical properties are retained.  At temperatures above 600 degrees F. film carbonized.  It is important to note that the effect to heat in multiple exposures is cumulative.  Therefore many short exposures to heat will have a similar effect to one long exposure.

Moisture Vapor Transmission Rate (0.025 gms./24 hrs.: 1.5 mil coating thickness - Payne Cup).
     a)  Theoretical - on 2 mil thickness or 0.0508 mm., 4.05 mg. of
          moisture permeates through 100 square inches at 100 degrees
          F. in 24 hours.

     b)  Actual Test - (24 hrs. at 100 degrees F.)  49 mg. loss
          .0685 mm. coating thickness 10 square centimeter area.
         On the basis of grams per 100 square inches the rate of
         moisture vapor transmission is 3.16 grams per 24 hours at
        100 degrees F.

Heat Reflectivity ......................................................... 81-83
Light Reflectivity (average)
     a)  white #200 - gloss................................................. 75%
     b)  white #200 - satin.................................................. 82%
     c)  white #200 - flat.................................................... 88%

Flash Point (Tag closed cup)...varies with formula 40-100 degrees F.

PHYSICAL PROPERTIES: 3 Mil wet coat applied at 75 degrees F.
Percent Solids:                36.0 +2.
Pot Life:                         12 hours +.
Dry Time:                      Dust free, 30 minutes;
                                       Dry to handle, 4 hours;
                                       Hard, 8 hours;
                                       Full cure, 7 days.
Heat curing time:          Air dry for five minutes at room temp.
                                       1 hour, 130 degrees F.;
                                       30 minutes, 150 degrees F.;
                                       20 minutes, 180 degrees F.;
                                       10 minutes, 250 degrees F.

 

THUNDERBIRD EPOXY
CHEMICAL RESISTANCE

Film thickness 4-6 mils normal 3 coat application.  Coatings post cured at 200 degrees F. for 30 minutes.  Coatings cured 7 days at room temperature provide slightly less resistance to chemicals and solvents.

KEY: NC - No change;  SS - Slightly softened; 

S - Softened;  F - Failed;  E - Excellent.

                                                 DAYS IMMERSED
ACIDS                                       30                      60

Acetic 5%                                                                  
Acetic 50%                                                                
Acetal Glacial                                                            
Citric 10%                                                                 
Citric 50%                                                                 
Fatty Acid (Linseed)                                                 
Hydrochloric 10,20 & 30 %                                      
Hydrochloic Vapor                                                    
Lactic (Dairy Products)                                             
Nitric 10%                                                                 
Nitric 20%                                                                 
Nitric 30%                                                                 
Phosphoric 85%                                                        
Sulphuric 25%                                                           
Sulphuric 50%                                                           
Sulphuric 70%                                                             Sulphuric 80%                                                           


ALKALIES
Ammonium Hydroxide 25%                                     
Ammonia Vapor                                                        
Sodium Hydroxide
(all concentrations)                                                    

SOLVENTS
Acetone                                                                     
Allyl Chloride                                                            
Butyl Alcohol                                                            
Carbon Tetrachloride                                                 
Diethylene Triamine                                                  
Ethyl Alcohol                                                            
Ethylene Diamine                                                      
Formaldehyde 30%                                                   
Methyl Ethyl Ketone                                                
Isopropyl Alcohol                                                     
Methyl Isobutyl Carbinol                                         
Methyl Isobutyl Ketone                                           
Mineral Spirits                                                          
Toluene                                                                      
Xylene                                                                       

DETERGENTS AND SALTS
Detergents, Anionic 2%                                            
Calcium Hypochlorite 5%                                         
Sodium Chlorite 25%                                                
Sodium Hypochlorite 5%                                          


WATER
Fresh                                                                          
Chlorinated                                                                
Salt - Water or Spray                                                 


STAIN RESISTANCE

Butter                                                                        
Citrus Juices                                                              
Coffee                                                                        
Cola                                                                           
Crayon                                                                       
Gasoline                                                                     
Grease                                                                        
Hair Tonic                                                                 
Ink                                                                             
Lard                                                                           
Lipstick                                                                     
Liquor                                                                        
Milk                                                                           
Mineral Oil                                                                
Mustard                                                                     
Vinegar                                                                       

 

Thunderbird Traditional Archery
Dave and Dianne Johnson
1090 G ST NE, Linton, IN, 47441
NEW PHONE NUMBERS (812) 699-1099 or (812) 847-0212
tbirdarchery@sbcglobal.net

On the Web: www.TBIRDARCHERY.com