Times of browsing：
Product Name: bonded epoxy powder external anticorrosive steel pipe
Standard: fused epoxy powder exterior coating, anticorrosive SY/T0442-2010
Specifications: 2020 x 18 x 12000mm
Coating level: enhanced S
External anticorrosive technical indicators:
Epoxy coating: > 120 m;
Adhesive layer: more than 170 micron m;
The minimum thickness of anticorrosive coating is greater than or equal to 3.2m.
Peel strength (N/cm) 20 C + 5 C: > 100
50 C + 5 C: 70
The cathode is stripped at 65 C and 48h/mm: is less than 6.
Cathodic stripping (maximum operating temperature, 30d/mm: < 15)
Curing rate and curing percentage of epoxy powder:% or more than 95
The value of glass transition temperature is less than 5 Tg.
Impact strength: greater than or equal to 8J/mm
Anti 2.50 bending: polyethylene has no cracking.
Internal corrosion resistance indicators:
Thickness of inner coating: more than 500 m
24h or 48h resistance to cathode stripping: less than 6.5 mm
Bonding surface porosity (grade): 1-4
Section porosity (grade): 1-3
Impact resistance (8J): pinhole free
Wear resistance (1000g, 1000 turn -17 wheel): less than 20
Adhesion force (drawing method): > 20MPa
(pry stripping): level 1-2
Bending resistance (3 degree): no crack on the coating
Salt spray test (1000h): coating without change