Fiberglass mai laushi wani zane ne mai kauri na fiberglass wanda ke da ƙarin yawan zare da aka samo daga zaren da ke ci gaba da kasancewa. Wannan siffa ta sa simintin ya zama abu mai ƙarfi sosai wanda galibi ana amfani da shi don ƙara kauri ga laminates.
Duk da haka, roving ɗin da aka saka yana da laushi mai kauri wanda ke sa ya zama da wahala a manne wani layin roving ko zane a saman. Yawanci roving ɗin da aka saka yana buƙatar yadi mai kyau don toshe bugu. Don ramawa, roving galibi ana yin layi kuma ana ɗinka shi da tabarmar zare da aka yanka, wanda ke adana lokaci a cikin layuka masu layuka da yawa kuma yana ba da damar amfani da cakuda zaren roving/yanka don ƙera manyan saman ko abubuwa.
1. Ko da kauri, daidaiton ƙarfi, babu ƙura, babu tabo
2. Jikewa cikin sauri a cikin resins, ƙarancin asarar ƙarfi a ƙarƙashin yanayin danshi
3. Mai jituwa da resin da yawa, kamar UP/VE/EP
4. Zaruruwan da suka yi daidai sosai, suna haifar da kwanciyar hankali mai girma da ƙarfin samfur mai yawa
4. Sauƙin daidaitawa da siffar, Sauƙin shigarwa, da kuma kyakkyawan bayyanawa
5. Kyakkyawan sassauƙa, kyakkyawan sassauƙa da kuma ingantaccen farashi
| Lambar Samfura | Nauyin Naúrar (g/m2) | Faɗi (mm) | Tsawon (m) |
| EWR200-1000 | 200±16 | 1000± 10 | 100±4 |
| EWR300-1000 | 300 ± 24 | 1000±10 | 100±4 |
| EWR400 – 1000 | 400 ± 32 | 1000± 10 | 100±4 |
| EWR500 – 1000 | 500 ± 40 | 1000± 10 | 100±4 |
| EWR600 – 1000 | 600± 48 | 1000± 10 | 100±4 |
| EWR800-1000 | 800± 64 | 1000± 10 | 100±4 |
| EWR570-1000 | 570±46 | 1000± 10 | 100±4 |