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Hexamethylene Diisocyanate Curing Agent for Urethanes
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Typical Coating Characteristics The following are typical characteristics of coatings produced with Duranate™ two-pack grades, as determined by the test methods outlined on page 15 of this brochure.
Duranate type & grade Biuret Isocyanurate (Trimer) Adduct
24A 22A 21S TPA TKA E402
Drying time hr, 20°C
40 35 8 30 30 80
Gel fraction (%) 16 hr
1 day
7 days
42
64
95
48
67
95
91
93
95
62
77
95
64
79
95
40
60
95
Hardness  
HB HB H F F H*
Adhesion Steel
Stainless steel
Aluminum
Polyamide
Polycarbonate
ABS
Bending test (2-mm mandrel)
Impact resistance 1/4"-500g
30cm 30cm 10cm 30cm 30cm 50cm
Water resistance
Gasoline resistance
Chemical
resistance
10% HCl
10% H2SO4
10% NaOH
Weatherability Acrylic polyol
Fluoro polyol
N/A
N/A
N/A
*Transient groove, diminishes due to elasticity.
Rating: Excellent
  Good
  Good to poor
  Poor
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