Gray fusion bonded epoxy powder coated for fire fghting steel pipe tube

Powder Property

Test Standard

Color

Drak Green, Dark gray, black

Moisture Content

<0.5%

Moisture balance method

Particle Size

Larger than 250 µm <0.2%

Larger than 150 µm <3.0%

Vaccum sieve method

Density

1.43 ± 0.05 g/ml

Liquid displacement method

Thermal Properties

Tg1 61ºC Tg2 108ºC

Properties

Test

Performance

Test Standard

Dry Film Thickness

Recommended film thickness:

· In FBE systems: 300-400 microns (12-16 mils)

· As a primer in 3-layer PE or PP systems: 150-300 microns (6-12 mils)

Cathodic Disbondment

168 hours at 24ºC

<4 mm radius Average

ASTM G8-96

Relative Bond Strength Concrete

Beam-end test

>80% of mean strength for uncoated bar

ASTM A944

Salt Spray Resistance

800 hours at 35ºC

2-3mm

ASTM 117

Flexibility

Fixed mandrel bend, -30ºC

>3º per pipe diameter length

ASTM A775 and ISO BS 14654:1999

Impact Resistance

16 mm ball, 1.5J, -30ºC

No Holidays

ASTM G14-72

Hardness

Pencil Hardness

7 H

ASTM D1474-68

Hot Water Resistance

7 days, 50ºC

28 days, 50ºC

1.00mm disbondment

2.22mm disbondment

British Gas GBE/CW6

Yield Strength

Tensile Test

570 kg/m² (8000 psi)

ASTM D2370

Elongation

Tensile Test

8.6% at Break

ASTM D2370

Dielectric Strength

Breakdown voltage

Typical Value >1000V/mil

ASTM D149

Volume Resistivity

Through film, 500 V

>1.2 x 10¹⁵ ohm*cm

ASTM D257

Chemical Resistance Test

90 days @ 23ºC: No blistering, loss of adhesion, cracks, delaminating or bleaching: slight softening