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Polyester Fibreglass Tube PultrusionsPolyester Fibreglass Tube Pultrusions (Also showing tubes applied in fuse manufacture.)

Satisfy NEMA GPO-3
UL Recognized
Highly Flame Resistant
Arc & Track Resistant
Uncommon Dimensional Stability
Strong & Durable; Yet Easily Cut & Chamfered
Cost-Effective


Grade UTR

Glastic® Grade UTR Pultruded tubing is a fibreglass reinforced thermoset polyester composite in a pultruded tube.  It is recognized by Underwriters Laboratories.  It is flame resistant, track resistant and it has a UL index rating of 130°C electrical and 160°C mechanical.

Glastic® tubing exhibits uncommon dimensional stability.  It is impervious to high humidity or immersion.  It is also strong and durable (with a burst strength of 1200 psi to 1400 psi); yet it is easily chamfered and cut with carbide or diamond saws.

Glastic® Pultruded Tubing Composites are ideal for numerous tubing applications, and commonly used for a wide variety of fuses, from simple 15 amp fuses to heavy-duty 600 amp fuses.

 

Table 1 - Tube Pultrusion Dimensions.
Part Number Inside
Diameter
mm		 Outside
Diameter
mm		 Colour
PUTU10X15 10.0 15.0 White
PUTU16X19 15.9 19.1 Black
PUTU21X25 20.7 25.3 Black
PUTU27X32 27.2 31.8 Black
PUTU32X38 31.8 37.9 Black
PUTU38X44 38.1 44.2 Black
PUTU44X51 44.4 50.6 Black
PUTU54X63 54.0 63.3 Black
PUTU66X76 66.5 76.0 Black
Figure 1 - Polyester Fibreglass Tube Pultrusion

 

Table 2 - Polyester Fibreglass Tube Pultrusion Properties.
Part Number Burst
Strength
psi		 Plug
Diameter
in.		 Water
Absorption
% by wt.		 Porosity1
psi		 Arc
Resistance
sec.		 Inclined plane
Track Res.
min.
NEMA D1180-57 ASTM D570 Glastic® ASTM D495 ASTM D2303
PUTU16X19 1,300 0.618 0.60 50 142 300
PUTU21X25 1,400 0.809 0.60 50 150 300
PUTU27X32 1,400 1.062 0.55 50 150 300
PUTU32X38 1,400 1.241 0.50 50 150 300
PUTU38X44 1,400 1.491 0.50 50 150 300
PUTU44X51 1,300 1.741 0.50 50 150 300
PUTU54X63 1,300 2.112 0.50 50 150 300
PUTU66X76 1,200 2.604 0.50 50 150 300

All polyester fibreglass tube pultrusions exhibit the below properties. 

Oxygen Index (ASTM D2863) of 30%
Flame Resistance (NEMA LI-12) of Class 0
Electrical UL Temperature Index (UL 746B) of 130°C
Mechanical UL Temperature Index (UL 746B) of 160°C

The UL File number for all polyester fibreglass tube pultrusions is E81928.
1. Tubes are tested for porosity by applying water pressure for 60 seconds to the inside.  No streams of water should be visible at the listed pressure.
2. NEMA LI-1 specifies arc resistance of 150 seconds on a 3.2mm thick sample.  Thinner sections exhibit lower arc resistance.
Glastic® is a registered trademark of Glastic Corporation Cleveland Ohio USA.


 

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Last modified: June 29, 2001