Typical constructions

Single warp

This is the most common scrim construction. The first warp* thread under a weft** thread is followed by a warp thread above the weft thread. This pattern is repeated across the whole width. Typically the spacing between the threads is regular across the whole width. At the intersections two threads will always meet each other.

* warp = all threads in machine direction
** weft = all threads in cross direction

Double warp

The upper and lower warp threads will always be placed one upon the other so that the weft threads will always be fixed between an upper and a lower warp thread. At the intersections three threads will always meet each other.

Scrim nonwoven laminates

A scrim (single or double warp) is laminated onto a nonwoven (made from glass, polyester or other fibres). It is possible to produce laminates with nonwovens weighing from 15 to 200 g/m².

 

Square constructions

1/1
1 warp thread/cm
1 weft thread/cm

2/2
2 warp threads/cm
2 weft threads/cm

3/3
3 warp threads/cm
3 weft threads/cm

 

Other rectangular constructions

2/0,5
2 warp threads/cm
0,5 weft threads/cm or 5 weft threads/dm

2/1
2 warp threads/cm
1 weft thread/cm

2/1,5
2 warp threads/cm
1,5 weft threads/cm or 15 weft threads/dm

 

Asymmetrical constructions

2/3 4d
2 warp threads/cm, each 4th warp thread doubled
3 weft threads/cm

2/2 RV
2 warp threads/cm, edges reinforced with 4 instead of 2 warp threads/cm
2 weft threads/cm

2/2 different threads
2 warp threads/cm; alternating, e.g. 1 thread polyester, then 1 thread glass
2 weft threads/cm (polyester or glass)