7628 3732 2116 Woven Fiberglass Fabric
How 7628, 3732 and 2116 Fiberglass Fabrics Compare
7628, 3732 and 2116 fiberglass fabrics are woven from continuous-filament E-glass yarns and supplied in wide roll form for industrial processing. Although these fabrics may look similar to the naked eye, their weave construction, weight, thickness and yarn density make them suitable for different reinforcement and insulation requirements.
| Fabric Style | Weave | Typical Weight | Typical Thickness | Selection Focus |
|---|---|---|---|---|
| 7628 | Plain weave | 200 ± 10 g/m² | 0.18 ± 0.03 mm | Balanced strength and versatile processing |
| 3732 | 4-harness satin | Approx. 427 g/m² | Approx. 0.34 mm | Heavier reinforcement and good drapability |
| 2116 | Plain weave | Approx. 103 g/m² | Approx. 0.09 mm | Lightweight reinforcement and thin laminates |
7628 Fiberglass Fabric
7628 fiberglass fabric is a medium-weight plain-weave E-glass cloth. Its balanced interlacing structure provides dimensional stability, uniform yarn distribution and reliable handling during cutting, coating, lamination and resin impregnation.
A representative 7628 construction uses 68 tex yarn in both the warp and weft directions, with approximately 17 warp ends/cm and 12 weft ends/cm. Its typical weight is 200 ± 10 g/m², while its typical thickness is 0.18 ± 0.03 mm.
Typical breaking strength values reach at least 1,039 N/25 mm in the warp direction and 725 N/25 mm in the weft direction. This combination of strength, stable construction and processability makes 7628 woven fiberglass fabric suitable for composite reinforcement, electrical insulation, coated-fabric processing and other industrial applications.
3732 Fiberglass Fabric
3732 fiberglass fabric is a heavier woven E-glass cloth commonly produced with a 4-harness satin weave. Compared with plain-weave fabrics, the satin structure has fewer interlacing points, allowing the fabric to conform more easily to curved or complex surfaces while maintaining substantial reinforcement weight.
Typical 3732 fiberglass cloth has a weight of approximately 12.6 oz/yd², equivalent to about 427 g/m², and a thickness near 0.0134 inch, or 0.34 mm. A representative construction uses ECG 37 1/0 yarn with a thread count of approximately 48 × 32 ends per inch.
Its heavier structure makes it suitable for demanding composite reinforcement, insulation and industrial fabrication projects. Compatibility with the selected resin system, operating temperature and mechanical requirements should be confirmed before production.
2116 Fiberglass Fabric
2116 fiberglass fabric is a lightweight plain-weave E-glass cloth designed for applications requiring a thin reinforcement layer and a relatively fine, uniform surface. Representative specifications include E225 yarn and a thread count of approximately 60 × 57 ends per inch.
Typical 2116 fiberglass cloth has an areal weight of approximately 103 g/m² and a thickness around 0.09 mm. Its compact woven structure supports uniform resin distribution and helps manufacturers control the finished laminate thickness.
Because of its lower weight and thinner construction, 2116 woven fiberglass fabric is commonly selected for thin laminates, electrical insulation, printed circuit board materials and precision composite layers.
Key Product Advantages
- Woven E-glass construction: Continuous-filament glass yarns provide a stable and recognizable woven reinforcement structure.
- Multiple fabric weights: Choose lightweight 2116, medium-weight 7628 or heavier 3732 according to the required laminate construction.
- Wide roll supply: Roll widths close to or above one meter support efficient cutting, coating and lamination.
- Consistent fabric structure: Controlled yarn distribution supports stable downstream processing.
- Good processability: The fabric can be cut, coated, impregnated and laminated for different production methods.
- Flexible selection: Plain-weave and satin-weave options are available for different strength and drapability requirements.
- Customization support: Width, roll length, core size and packaging can be discussed according to customer requirements.
- Competitive pricing: Practical sourcing solutions are available for regular production and bulk purchasing.
- Reliable quality: Production and inspection controls help maintain consistent fabric construction.
- Responsive service: Specification confirmation, sample support and order communication are available throughout the purchasing process.
How to Select the Right Fiberglass Fabric
Selecting the correct fiberglass fabric should begin with the required laminate thickness, reinforcement weight, surface shape and processing method.
- Choose 2116 fiberglass fabric when a lightweight and thin reinforcement layer is required.
- Choose 7628 fiberglass fabric when balanced strength, dimensional stability and general-purpose processability are important.
- Choose 3732 fiberglass fabric when a heavier reinforcement fabric and improved conformity over shaped surfaces are required.
Visual appearance alone is not sufficient for identifying these fiberglass fabric styles. Buyers should compare the style number, weave type, yarn specification, thread count, areal weight, thickness and testing method.
Samples and technical data should be approved before mass production, particularly when the fabric will be used in electrical, structural or safety-related applications.
Wide Roll Fiberglass Fabric Supply
Wide fiberglass fabric rolls help reduce unnecessary seams, improve cutting efficiency and simplify continuous downstream processing. Representative specifications include a width of approximately 1,270 mm for 7628 and approximately 1,275 mm for 2116.
Available width depends on the fabric style and production arrangement. Customers can provide their required width, roll length, quantity, application and packaging method when requesting a quotation.
Common Applications
- Composite material reinforcement
- Electrical insulation materials
- Printed circuit board laminates
- Coated fiberglass fabrics
- Industrial insulation components
- Resin-impregnated laminates
- Equipment and structural reinforcement
- Custom industrial fabrication
Frequently Asked Questions
What is the main difference between 7628, 3732 and 2116 fiberglass fabric?
The principal differences are weave construction, yarn specification, thread count, weight and thickness. 2116 is relatively light and thin, 7628 provides a balanced medium-weight construction, and 3732 is heavier and commonly manufactured with a 4-harness satin weave.
Can these fiberglass fabrics be supplied in wide rolls?
Yes. Widths close to or above one meter are commonly available. Exact width, width tolerance and roll length should be confirmed for each fabric style before ordering.
Can the roll width, length and packaging be customized?
Customization may be available for roll width, roll length, core size and packaging, depending on the fabric style, order quantity and production capability.
Can buyers identify the three styles by appearance?
The three fabrics can appear similar from a normal viewing distance. Accurate identification should be based on the product style, weave, yarn specification, thread count, weight and thickness rather than visual appearance alone.
Are the listed technical values guaranteed specifications?
No. The values shown are representative or typical reference data. Actual specifications may vary according to the manufacturer, finish, testing method and production batch. The approved technical data sheet, sample and purchase contract should govern the final order.
Looking for 7628, 3732 or 2116 fiberglass fabric? Send us your required fabric style, width, roll length, quantity, application and packaging requirements for specification confirmation and a competitive quotation.
