What Is Fiberglass Casting Tape?

Fiberglass Casting Tape is a water-activated synthetic orthopedic fixation material made of pre-impregnated fiberglass fabric with medical-grade polyurethane resin, designed to immobilize fractured bones during healing.In practice, this material has replaced traditional plaster casts for most orthopedic procedures due to its superior physical properties.

Wrapping Operation Instructions

Preparation: Select the product of appropriate specification according to the patient’s immobilization site. Wear latex gloves before operation. Apply tubular stockinette to the area to be immobilized, and add cotton roll padding if necessary.

Water‑immersion: Submerge the sealed cast tape in room‑temperature water for 3‑4 seconds, then squeeze it 2‑3 times. If applied without water immersion, the curing time will extend to 4‑6 minutes. (Higher water or ambient temperature accelerates curing speed.)

Wrapping: Wrap with moderate tension in a spiral pattern, overlapping 1/2‑1/3 of the tape width. Maintain proper tightness: excessive looseness reduces inter‑layer adhesion, while over‑tight wrapping increases burden on the injured site.

Molding: Apply 5‑6 layers for weight‑bearing support areas, and 3‑4 layers for non‑support areas. Gently smooth the surface after wrapping, and allow it to cure and set naturally.

Key Benefits of High-Quality Fiberglass Casting Tape
High-quality fiberglass casting tape from certified manufacturers like Shuangwei Biotechnology offers multiple benefits for both clinicians and patients. In practice, we’ve observed the following core advantages from real-world use:
Six Core Advantages That Directly Address Key Clinical Needs

1. Excellent forming performance

The base material exhibits excellent flexibility, allowing it to conform and mold easily even in complex areas such as limb bends and joints. The resulting shape is smooth and closely adheres to the surface, meeting the fixation requirements of various limb morphologies.

2. Smooth surface after curing

High-quality fiberglass substrate combined with a special formulation ensures a smooth, more conforming bandage texture during application; after curing, the surface is smooth and even, resulting in a neater, more uniform appearance.

3. Easy to operate, with controllable curing

It employs a water‑activated resin formulation, offering a simple, easy‑to‑learn application process with controllable curing time. After immersion in water, the bandage does not stick to the gloves, and the fabric roll maintains an optimal tension. Initial curing occurs within 5–8 minutes after wrapping, and full load‑bearing capacity is achieved after 30 minutes, allowing healthcare professionals to manage their workflow efficiently and minimize patient discomfort during waiting periods.

4. Lightweight and breathable, waterproof and abrasion-resistant

The product weighs only one-fifth of a conventional plaster cast, significantly reducing the burden on the wearer. Its knitted base material offers excellent breathability, minimizing skin irritation and unpleasant odors even with prolonged immobilization. Once cured, it achieves a strength up to 20 times that of standard plaster, providing stable and reliable support. Additionally, it boasts water‑resistant properties that withstand moisture and humidity, allowing patients to bathe normally during immobilization and making daily activities more convenient.

5. Economical and practical, with reduced consumable usage

The amount and number of layers of bandage required to achieve equivalent immobilization are significantly lower than those needed for conventional plaster casts. Immobilizing the upper limb requires only 5 layers, while the lower limb requires just 6, effectively reducing material costs per application.

6. Gentle and low-irritation, safe to use

The product is non-toxic, non-irritating, has a mild fragrance, exhibits excellent skin compatibility, and is suitable for most skin types.

Note: This product does not come into direct contact with the human body.

Frequently Asked Questions

Q: What is fiberglass casting tape used for?

A: The primary use of fiberglass casting tape is to immobilize fractured bones after injury or orthopedic surgery to support proper healing. It is also used for stabilizing sprains, immobilizing joints during treatment, and making custom orthopedic molds.

Q: Is fiberglass casting tape the same as plaster casting tape?

A: No, they are made from completely different materials. Plaster casting tape uses gypsum powder as the active hardening agent, while fiberglass casting tape uses polyurethane resin reinforced with fiberglass fabric, resulting in a much lighter and more durable product.

Q: Can fiberglass casts get wet?

A: Yes, fully cured high-quality fiberglass casts are water-resistant. Patients can shower or swim with a protective cover, and the cast will not deform or break down, which is a major improvement over traditional plaster that cannot get wet.

Q: Is fiberglass casting tape safe for sensitive skin?

A: When produced with medical-grade raw materials and used with proper padding, fiberglass casting tape is very safe for sensitive skin. 
It is important to note that fiberglass casting tape is not suitable for every fracture case. For very unstable fractures or complex pediatric cases, your orthopedic surgeon may recommend alternative fixation methods.

Q: How to Choose Quality Fiberglass Casting Tape

A: When sourcing fiberglass casting tape for clinical facilities or personal use, prioritize third-party certification and consistent manufacturing quality. As a leading medical manufacturer, we recommend checking for at minimum CE or FDA clearance, and ISO 13485 certification for manufacturing quality management. Shuangwei Biotechnology has produced medical-grade fiberglass casting tape for over 12 years, with exports to 35+ countries.

Q: How long does fiberglass casting tape take to fully cure?

A: Most high-quality fiberglass casting tape fully cures in 10 to 20 minutes after activation, depending on room temperature and the thickness of the cast. You can resume light activity after the curing process is complete.

Q: Can I remove a fiberglass cast at home?

A: No, fiberglass casts require a specialized oscillating cast saw to cut through the rigid material. Attempting to remove it at home can cause skin injury or damage to the healing bone, so always visit a licensed clinician for removal.