STOPAQ FN 4200
a corrosion preventative filler which is applied for the protection of above ground flanges.
PRODUCT INFORMATION
STOPAQ FN4200 is a corrosion preventative filler which is applied for the protection of above 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 and gives applicators an opportunity to coat uneven, non-cleaned or hard to access surfaces. When applied STOPAQ® FN 4200 does not flow from vertical and inclined surfaces.
- Between flanges
- above ground injection into the narrow spaces between flanges. Also flowing into the bolt holes, protecting the bolt threads and -shafts against corrosion.
- Flange gaskets - external
- For corrosion protection of the outside rims of gaskets in flange connections.
- Storage tanks - chime plate gaps
- For protection of steel surfaces in gaps between the tank skirts and the concrete foundations (Chime area).
- Bolt Connections
- For protection of bolt threads and - shafts in deep bolt holes (in steel- as well as concrete constructions).
STOPAQ FN 4200 has excellent resistance to weathering and ageing and will protect the flange internally.(nuts and bolts) over a long period of time to provide a largely maintenance free protection system for above ground flanges.
- Easy to Apply
- Adheres to all surfaces, incl. PVC, PE, Copper, Steel, Lead, etc.
- Water Impermeable
- Remains Flexible
- Long Term Protection
- High Specifiec Electrical Resistance
- Water/Salt Resistance
- Helps Block H2S Gas
- Fills the complete space
TESTING DATA & RESULTS
Product Properties
- Colour
- Green
- Density
- 1,2 - 1,5g/cm3 (NEN 1833)
- Adhesion
- No adhesion failure, cohesive break (Steel, PP, PE, Epoxy)
- Moisture Absorption
- < 0,07% (ASTM D 570)
- Temperature Ranges
- Temp.
- Temperatures in service
- -45°C up to +100°C
- Subtrate application temp.
- -10°C to +60°C
- Material temp. for application
- +20°C to +40°C
- Resistance against thermal ageing
- No changes in properties (ASTM D 570)
- Salt spray resistance
- No corrosion detected. (Tested for 720 h 5% NaCl at 85°C) (ASTM B 117)
PREPARATION & APPLICATION
