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Nufalt SR

Nufalt SR is a closed Heat-Shrinking tube, composed of a highly resistant modified polyethylene film and highly adhesive bituminous sealant for protection against corrosion. After shrinking the NUFALT SR sleeves provide long protection against corrosion in a wet environment as well as very good mechanical resistance.

Main advantages :

  • No primer required
  • Excellent tightness thanks to the interior sealant
  • Excellent resistance to weather conditions
  • High medical resistance
  • High resistance to mildew and bacteria
  • Clean and ease application

Application

Corrosion portection for welded joints, steel or cast-iron pipes pre-coated in the workshop

Protection and reinforcement of junctions between different materials and different diameters

Tightness of pipe junctions, for instance : rainwater drainpipe in PVC, zinc, etc

Distribution of leaks on pipe, up to 5 bars.

Type      Length     Number of pieces per carton 
SR 3" DN 80  450 40
SR 4" DN 100  450 30
SR 5" DN 125 450 30
SR 6" DN 150 450 25
SR 8" DN 200 450 20
SR 10" DN 250  450 20
SR 12" DN 300 450 15
SR 14" DN 350 450 12
SR 16" DN 400 450 12

Carachteristics

   Unit  Value Standard
Total thickness mm 2  
Tensile strength Mpa 16.55 ASTM D 638 
Elongation % >400 ASTM D 638
Hardness Shore 45 ASTM D 2240 
Dielectric strength KV 32 ASTM D 149 
Volume resistivity Ohm.cm >1015 ASTM D 257
Cathodic disbonding R équi. mm 10 ASTM G 8
Water absorption % 0.05 ASTM D 570
Operating temperature °C -20 à +60 °C   
Storage temperature °C Keep away from the sun   
       
Sealant characteristics :       
Sealant thickness for tube L = 450 mm  mm 1.25  
Sealant thickness for tube L : 610 mm mm 1.00  
Sealant softening point °C 95 ± 5 ASTM E 28
Peel resistance at  23 °C N/10 mm 30 ASTM D 1000

Sealant adhesion : 

On PE coating

On steel

 

N/10 mm

N/10 mm

 

48

32

 

ASTM D 1000

ASTM D 1000

Some photos