Direct roving

With  perfect  compatibility  with unsaturated polyester, vinyl ester phenolic resins or polyurethane resin, it's mainly used in filament winding process to produce pipes, pressure vessel, chemical storage tanks and and so on.  It is also widely used in pultrusion process to  produce various kinds of rods, bars, tubes and sheets.

Item

Unit

Test Standard

Standard

Tensile Strength

N/Tex

GB/T7690.3-2001  OR  ISO3341

0.4 Min

Linear density

Tex

//

300--9600

Coefficient of Variation of Linear density

%

GB/T7690.1-2001 OR  ISO1889

5Max

Sizing

//

Silane

L.O.I

%

GB/T9914.2-2001  OR  ISO1887

0.55±0.15

Moisture content

%

GB/T9914.1-2001 OR  ISO3344

0.1Max

260

260

package inside diameter mm  

160

160

package outside diameter mm  

270

310

Package Weight Kg

17

22

Number of Layers

3

4

3

4

Number of doffs per layer

16

12

number of doffs per pallet

48

64

36

48

Net weight per pallet Kg

816

1088

792

1056