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STOPAQ FN 4200
Flange Filler Paste for Flange Protection


A corrosion preventative compound for the protection of over-ground flanges.
Protects the space between the flange plates against the ingress of moisture.

Description

STOPAQ® FN 4200 is a corrosion preventative compound which is applied for the protection of over-ground flanges. It protects the space between the flange plates against the ingress of moisture, and penetrates the pores of the steel. Once applied, the product stays flexible forever and shows no degradation after many years of service.

STOPAQ® FN 4200 is suitable for coating above ground flange plates having thermal deformations. It gives applicators an opportunity to coat uneven, non-cleaned or hard to access surfaces. When applied, it does not flow from vertical or inclined surfaces.

The application of STOPAQ® FN 4200 is very easy to a dry base in all weather conditions, with no priming or preheating. STOPAQ® FN 4200 is applied in combination with STOPAQ® WRAPPINGBAND CZ (H).

STOPAQ® FN 4200 has excellent resistance to weathering and aging and will protect the internal of the flange (and therefore the nuts and bolts) over a long period of time to provide a largely maintenance free protection system for over ground flanges.

Advantages

  • One-component synthetic polymer system
  • Unlimited shelf life
  • No additional safety measures necessary
  • No special requirements for transportation
  • Non-toxic, inert, no harmful effect environment
  • Easy to apply. Please see our application page.

Specifications
 

Property

Value

Test Procedure

Application temperature

-30ºC to +100ºC

 

Temperature range for use

-60ºC to +130ºC

 

Density

1.49 g/cm³

GOST 12801-67

pH-value

Neutral

 

Flashpoint

+190ºC min.

 

Water impermeability

None

GOST 11501-78

Cathodic disbonding (damage hole 6.4 mm (1/4 sq.inch)

6.35 mm ( 25ºC)
9.90 mm (50ºC)

ASTM G 95, ASTM G8, EN 12068

Penetration (100ºC / 30 days)

36 mm

GOST 11501-78

Consistency

1.0 mm (23 ºC)

TU 400-2-51-70 3.5

Resistivity

> 1012 ohm-cm

AKH method

Adhesion

0.5 N/mm² (23ºC)

GOST 25812-83, EN12068

Shear Strength

0.20 N/mm² (23ºC)
0.32 N/mm² (100ºC)

AKH method

Salt Spray Test (1000 hr, 5%NaCl) 

No corrosion

AKH Method, ASTM B 117

Irradiation by UV

No changes

17.5 GJ Government University of Groningen

Vitrification temperature

< -65 ºC

 


  

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