Marine fabrication projects often involve a variety of materials, construction methods, and finishing techniques. One component that can play an important role in the appearance and construction of covers, enclosures, and other fabric projects is bias binding.
Hydrofend® CVR Bias Binding with Sonic Welded Seams combines bias-cut construction with solution-dyed polyester fabric and sonic seam joining technology. It is designed for use in marine and outdoor fabric applications where flexibility around curves and finished edge appearance may be considerations during fabrication.
What Is Hydrofend® CVR Bias Binding?
Hydrofend® CVR Bias Binding is a binding material manufactured from Hydrofend CVR solution-dyed polyester fabric. It is available in Battalion Black and is intended for marine and outdoor fabric projects, including covers, enclosures, and protective fabric applications.
Its bias-cut construction allows the material to adapt to changes in direction and shape, which can be useful when working with rounded corners, curved edges, and contoured designs.
Understanding Sonic Welded Seams
Hydrofend® CVR Bias Binding incorporates sonically welded seam construction. In this process, sections of material are joined using sonic welding rather than conventional stitching.
As a result, the joining areas have a different visual appearance than stitched seam constructions, which may be of interest to fabricators evaluating binding options for specific projects.
Bias-Cut Construction and Curved Applications
Bias-cut binding is commonly used when a project includes curves, contours, or rounded shapes. Cutting fabric on the bias creates a material that can more easily follow changes in direction than many straight-cut alternatives.
This characteristic can make bias binding a common choice for applications such as:
- Boat covers
- Pontoon covers
- Bimini tops
- Marine enclosures
- Cockpit covers
- Personal watercraft covers
- Furniture covers
- Storage covers
- Other projects featuring curved or shaped edges
Common Characteristics
Hydrofend® CVR Bias Binding is manufactured from solution-dyed polyester fabric and is intended for outdoor use.
Product characteristics include:
- Bias-cut construction
- Sonically welded seam joining
- Solution-dyed polyester material
- Compatibility with Hydrofend CVR fabric projects
- Availability on large spool formats
Applications for Marine and Outdoor Fabrication
Fabricators may consider Hydrofend® CVR Bias Binding for a variety of marine and outdoor sewing projects where edge finishing is required.
Examples include:
- Boat tops
- Boat covers
- Marine enclosures
- Outdoor furniture covers
- Equipment covers
- Storage covers
- Custom marine fabrication projects
Coordinating with Hydrofend® CVR Fabrics
Since the binding is manufactured from Hydrofend CVR material, it can be incorporated into projects that utilize Hydrofend CVR fabrics. This allows fabricators to source both fabric and binding solutions within the same product family.
Things to Consider When Selecting Binding
Choosing a binding material often depends on factors such as project design, edge geometry, fabrication preferences, desired appearance, and material compatibility.
Questions a fabricator may ask themselves include:
- Will the project contain curved or rounded edges?
- Is bias-cut binding appropriate for the application?
- What seam construction does the binding use?
- Will the binding coordinate with the chosen fabric?
- What spool size best fits the production process?
Frequently Asked Questions
What is bias binding?
Bias binding is fabric that has been cut on the bias, allowing it to adapt more easily to curves, contours, and changes in direction than many straight-cut materials.
What are sonic welded seams?
Sonic welded seams are formed by joining materials through a welding process rather than by stitching. This creates a seam with a different construction method and appearance than conventional sewn joins.
What types of projects use marine binding?
Marine binding is commonly used on boat covers, enclosures, tops, furniture covers, storage covers, and other sewn marine fabric applications.
Why do fabricators use bias-cut binding?
Bias-cut binding is often selected for projects that include curves, rounded corners, or shaped edges because of its ability to follow changes in direction more readily than many straight-cut constructions.
Can this binding be used with Hydrofend® CVR fabrics?
Hydrofend® CVR Bias Binding, including this bias-cut version with sonic welded seams, is manufactured from Hydrofend CVR material and may be used in projects that incorporate Hydrofend CVR fabrics. Only available at trivantage.com! Shop today.


