FR Hook & Loop Fasteners, Sew-On
SKU# FRSBH100-50
These hook and loop fasteners are ideal for light-to-medium duty applications, such as upholstery closeouts or holding down seat cushions in automobiles, boats, trains, and airplanes. They can be easily sewn or glued to any surface.
Fire-retardant hook and loop fasteners. Colloquially known as "Velcro". HALCO® brand. Sold in 50-yard rolls.
Available in black & beige, and in 1-inch or 2-inch widths. Sold in 50-yard rolls.
White and gray colors have a 2-week lead time. Contact us for custom colors.
Includes FAA burn certificate for 25.853(a). Also available with Pressure Sensetive Adhesive or tack-down.
Hook and loop sold separately.
| Length | 50 yards |
| Width | 1-inch or 2-inch |
| Weight |
Hook, 1-inch: 0.007 oz/inch Loop, 1-inch: 0.008 oz/inch Hook, 2-inch: 0.015 oz/inch Loop, 2-inch: 0.016 oz/inch |
| Thickness |
0.077 inch (hook); 0.082" (loop) |
| Fastener Material | 100% Nylon |
| Colors | Black, Beige, White, and Gray |
| Maximum Temperature | 392°F (Melting) |
| Peel Strength |
1.12 lb (1-inch) 2.24 lb (2-inch) |
| Shear Strength |
22.7 lb (1-inch) 45.4 lb (2-inch) |
| Breaking Strength |
169 lb (Loop, 1-inch), 205 lb (Hook, 1-inch) 378 lb (Loop, 2-inch), 416 lb (Hook, 2-inch) |
| Durability (to 50% strength) | 20,000 peels |
| Flammability |
14 CFR (FAR) 25.853(a), Vertical Burn California Technical Bulletin 117 FMVSS 302, Automotive Flammability |
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This product is recommended for use in automotive interiors. |
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This product is recommended for use in all types of aircraft and rotorcraft, but see the Note below. |
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This product is recommended for use in Marine applications. |
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This product is acceptable for use in Railway applications when used as a fastener under the small part exemption (49 CFR 238, Appendix B, Footnote 10). This product may also pass other rail tests. Contact us for more information. |
Note: Hook and Loop ("Velcro") failures are common in Vertical Burn testing across all brands. Most fasteners are manufactured from nylon or similar synthetic materials that are inherently flammable. These materials typically pass the standalone 12-second Vertical Burn test because they liquefy and drip during combustion; this process carries the flame away from the sample, allowing it to self-extinguish.
However, when the same fastener is attached to a substrate like leather, it is prevented from dripping. This causes the flame to linger and intensify on the material, leading to a failure. In our experience, this occurs in approximately 20% of cases. Leather is particularly problematic as it tends to shrink and contract, further concentrating the flame.
For projects involving Oil Burn Testing a simple solution may be for your laboratory to test the Hook and Loop independently, provided the Oil Burn test also passes.
For all other testing categories, there are unfortunately no ideal solutions. The available options include:
- Applying a flame retardant: This is generally ineffective as the treatment cannot sufficiently penetrate the nylon fibers.
- Sewing instead of gluing: While this may slightly improve performance, the fundamental combustion issue remains.
- Switching brands: This rarely resolves the issue, especially when testing on leather, as the substrate itself is often a primary contributor to the failure.
- Utilizing "Radiant Panel" rated fasteners: Specialized fasteners are designed for these conditions. This is the only method to guarantee a passing result, though it does involve a significantly higher cost.