Epoxy Primer: 1.strong adhesive ability 2.strong contraction 3.ageing resistance etc. 4.Apply to urban pipeline antisepticSerial No. Test items UnitTechnical Criteriavoluntary standards1 AdhesionStage≤ 2 GB/T1720 2 Flexibilitymm≤ 1 GB/T1731 3 ImpactJ ≥ 4.9 GB/T1732 4 Hardness ≥ 0.60 GB/T1730 5 Surface Hardnessh ≤ 2 GB/T1728 6 Internal HardnessH ≤ 16 GB/T1728 7 Finenessμ m ≤ 80 GB/T1724
