Untitled Document

Clear Med Temperature Surface Coat - HTR-212

Category: Surface Coats
Ratio: 100pbw to 30pbw
Hardener: 302
Description: HTR-212 w/302 s an unfilled clear epoxy room temperature curing surface coat system used for medium temperature and from temperature applications. HTR-212 w/302 is a tough, strong resin with good chemical resistance and excellent for clear surface coat on carbon graphite parts that are vacuum bag.
Ratio By Weight: 100pbw to 30pbw
Ratio by Volume: 2.8 to 1
Pot Life at 72° F (200 Gram Mass): 15-20 minutes
Cure Time: 12-24 hours
Shore "D" Room Temperature: 82
Heat Distortion: 300°F
Density Resin: 9.7
Density Hardener: 8.1
Density Mixed: 9.3
Shelf Life: 1 year
  A B C D E
Ratio By Weight: 100pbw to 40pbw 100pbw to 50bpw 100pbw to 60pbw 100pbw to 82 pbw 100pbw to 100pbw
Ratio by Volume: 2-1 1.6-1 1.4-1 1-1 82-1
Pot Life at 72° F (200 Gram Mass): 135        
Hardness Shore "D": 85 83 81 77 55
Water Absorption (4): .19 .21 .29 .54 1.10
Weight Loss (3): .53 .64 .72 .81 1.73
Electrical Properties: Dielectric Constant (5): 3.57 3.57 3.58 3.62 3.71
Electrical Properties: Dissipation Factor (5): .020 .021 .032 .037 .041
Volume Resistivitty, OHM CM @ 25°C: 1.0 (1016) 9.0 (1016) 10(1014) 8.2 (1013) 1.1 (1013)
Izod Impact, Ft-Lb_Inch Notch: .46 .55 .84 1.02 2.08
Tensile Elongation at Break, %: 6 6.4 6.9 16 79
Tensile Strength, PSI: 8,600 8,300 7,600 5,250 1,850
Heat Deflection Temperature, °C: 70 67 61 42 14
Density Resin: 9.65 9.65 9.65 9.65 9.65
Density Hardener: 7.87 7.87 7.87 7.87 7.87
Density Mixed: 9.14 9.06 8.89 8.85 8.76
Specific Gravity Resin: 1.17 9.06 8.89 8.85 8.76
Specific Gravity Hardener: .94 9.06 8.89 8.89 8.76



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