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Corrosion Prevention Viscoelastic Coating Materials for Oil Gas Water Pipelines

Description:

Visco-elastic coatings is a new-type high-performance visco-elastic polyolefin material. It preserves the dual characteristics of the solid adhesive material and liquid adhesive material. In normal conditions, its visco-elastic property will keep above 30 years. This product has excellent visco-elastic, sound water-proof and easy-used characters.

Visco-elastic coatings ------product feature:

It can be use in the surface of steel, PE, PP, FBE etc. directly.

Completely compatible to other coating (three-layer PE, PVC,CTE-coating, asphaltum)

Excellent chemical resistance and sealing, it is completely water-proof.

It can be self-repair for light defects.

It is useful to pipeline joint anticorrosion and repair, also for elbow pipe, pipe bending, three joints and insulated flange.

Widely applicable temperature (it can be installed between -45°C~70°C).

The Construction Quality can be handled. It seldom affects by the environment and the operator.

It can be stored in long time and the material it adopts is eco-friendly.

Performance of Visco-elastic coatings

Item	Test method	Performance
color	Visual estimation	green
thickness	ASTM D 1000	≥1.8mm
application temperature range	-----	-45~70°C
Specific Insulation Resistance	EN 12068	≥108Ω.m2
Dielectric strength	DIN 53481	≥10kv/mm
peel strength @ (23 ℃) to PE                       to Steel                       to FBE	ISO 21809-3	4N/cm 5N/cm 6N/cm
Lap Shear @ 23℃	ISO 21809-3	0.04N/mm2
Water Absorption	ASTM D 570	0.03%
Impact Resistance	EN 12068	＞ 15J
Cathodic Disbandment	EN 12068	≤20 mm-rad
Drip Resistance @85 ℃ for 72 hours	-----	No dripping
Chemical Resistance 10% HCL,10%Na OH, 3%NaCL for 90 days	-----	Pass
Hot water immersion @60℃ for 120 days	----	Pass

Approvals by Int’l Standards

l         DIN 30672

l         EN Standards EN 12068

l         ASTM Test Methods ASTM D 1000

l         American Water Standards (AWWA) C 209 & 214

l         Indonesian Standards (PERTAMINA)

l         Iran Standards-NIGC & IGS

l         China Standards SYT 0414-2007