General Information
ISOFELT Mesh Reinforced Spunbond Long Fiber Polyester Nonwoven is a combination of spunbond polyester with fiberglass weaving mesh.We achieve the combination through a lamination process to enhance the mechanical properties in both longitudinal and transversal directions.This product can increase the tensile strength, tear & puncture resistance of your finished roofing products.
With 24 weaving mesh production lines, ISOFELT can produce fiberglass & polyester mesh with both plain & leno weaving methods. Based on customer needs, special tailor-made products are available to fulfill your diverse application requirements.
Application
ISOFELT Mesh Reinforced Spunbond Long Fiber Polyester Nonwoven serves as an ideal carrier material for SBS/APP modified bituminous waterproofing membranes.
Compared with non-reinforced polyester nonwovens, this reinforced material delivers higher tensile and tearing strength in both longitudinal and transversal directions. This enhanced strength supports high-speed production under high mechanical tension. The resulting bituminous waterproofing membranes perform better—especially in cold regions—by preventing joint area gapping caused by thermal contraction.

Technical Data Sheet
| Typical Properties | Unit | Test Method | Tolerance | Standard Value | |
| Product Specification | 160MRP | 200MRP | |||
| Composition | Spunbond Polyester + Fiberglass Mesh | ||||
| Mass Per Unit Area | g/m2 | DIN EN 29073-1 | -5% * | 160 | 200 |
| Thickness | mm | ±15% | 0.75 | 0.90 | |
| Max. Tensile Strength (MD/CMD) | N/5cm | DIN EN 29073-3 | -10% * | 600 / 500 | 1000 / 1000 |
| Elongation at Max. Strength (MD/CMD) | % | DIN EN 29073-3 | -15% * | 1.0 / 1.5 | 1.5 / 2.0 |
| Shrinkage 10min, 200℃ (MD/CMD) | % | ≤ | 0.5 / 0.5 | 0.5 / 0.5 | |
Remark:
1. * No upper limit.
2. Max. tensile strength subject to number of glass fiber filaments included in the specimen.
3. Special specifications are available based on customer requirements. (Nonwoven & mesh type can be changed to reach specific required strength.)
Whether you’re sourcing for infrastructure projects, residential buildings, or industrial roofs, Guanlong Waterproof Materials Co., Ltd. is your trusted partner for quality bitumen felt and competitive pricing. Contact our team today for the latest catalog, free samples, or a custom quote.
Email: guanlinguoji@126.com
Phone/WhatsApp: +86 18263668883
For more Enterprise Products, visit: glwaterproof.com/product/


