Low Pressure Spray SWD moisture cure urethane on bridges – SWD

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Low Pressure Spray SWD moisture cure urethane on bridges – SWD Detail:

Features and advantages

* excellent adhesive strength, bond solid with carbon steel, concrete and other substrates.

* coating membrane is dense and flexible, to withstand the damage of cyclic stress failure

* high solid content and meet the requirements of environmentally friendly

*excellent mechanical property, abrasion resistance, impact resistance and scratch resistance

*excellent waterproof

*excellent anticorrosion property and resistance to many chemical rust medium such as salt spray, acid rain.

*excellent anti-aging, no crack and no powder after long term outdoor use.

*hand brushable coating, easy to apply, multiple application method is suitable

*single component, easy application without need of mix ratio with other parts.

Typical use

Anticorrosion waterproof protection in the industrial enterprises of oil, chemistry, transportation, construction, power plant etc.

Product information

Item	Results
Appearance	Color adjustable
Viscosity (cps )@20℃	250
Solid content (%)	≥65
surface dry time (h)	2-4
Pot life (h)	1
theoretical coverage	0.13kg/m²(thickness 100um)

Physical property

Item	Test standard	Results
pencil hardness	GB/T 6739-2006	2H
bending test (cylindrical mandrel) mm	GB/T 6742-1986	1
breakdown resistance strength (kv/mm)	HG/T 3330-1980	250
impact resistance (kg·cm)	GB/T 1732	60
resistance to temperature changes (-40–150℃) 24h	GB/9278-1988	Normal
adhesive strength (Mpa), metal base	ASTM D-3359	5A (highest)
density g/cm³	GB/T 6750-2007	1.03

Chemical resistance

Acid resistance 50% H₂SO₄or15%HCl, 30d	No rust, no bubbles, no peel off
Alkali resistance 50%NaOH, 30d	No rust, no bubbles, no peel off
Salt resistance, 50g/L,30d	No rust, no bubbles, no peel off
Salt spray resistance, 2000h	No rust, no bubbles, no peel off
Oil resistance 0# diesel, crude oil, 30d	No bubbles, no peel off
( For reference: pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data.)

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Low Pressure Spray