• Thermoplastic Splints - custom-made in a range of colours

  • Neoprene Splints and Supports - custom-fitted on the spot

  • Moon Boots and Walking Casts - Achilles, foot and ankle injuries

  • Fibreglass and POP Casts - custom made in a range of colours

  • Protective and Supportive Splints - get back to work and sport faster and safer

  • Dynamic Splints - used to regain motion in stiff joints

Why Do We Use Thermoplastic Splints ?

At Flex Physiotherapy we love thermoplastic splints, and over the years many thousands of patients have loved our thermoplastic splints as well. Occasionally we still use Fibreglass or Plaster of Paris casts, but whenever it is appropriate we strongly recommend thermoplastic for all of these reasons:


  • Lighter

    Plaster casts are thick and heavy, weighing down the whole arm and putting a strain on the neck and shoulder. A thermoplastic splint is extremely light, while still being strong and durable.

  • Waterproof

    Thermoplastic Splints are waterproof.
    Plaster casts are absorbent, and will fall apart if they get too wet. A thermoplastic splint, on the other hand, can be worn in the shower, while swimming, or even when scuba diving!


  • Removable

    No need to poke a knitting needle down the cast to scratch that annoying itch. Your thermoplastic splint can be carefully removed to enable you to wash, dry and moisturize your injured arm and have a proper scratch! Ask your physio for advice about how safe it is to remove your splint.

  • Washable

    Plaster and fibreglass casts are notorious for getting very dirty and smelly, especially when worn by kids or by someone who is continuing to work with their hands. If your thermoplastic splint gets dirty, it can be removed and washed in luke-warm, soapy water, then dried and replaced on your arm.


  • Cost effective

    Yes, a thermoplastic splint will cost more than a plaster cast, but we keep our costs very reasonable, and our patients consistently report that the splints would be good value at twice the price. Most private health funds will give you a partial refund for the cost of the splint!

  • Adjustable

    Your thermoplastic splint can be remoulded and adjusted to allow for changes in swelling and dressings, or just for comfort.  We do not charge extra for splint adjustments in between your scheduled appointments.

Costs vary depending on the size and complexity of the splint - feel free to contact us for a more specific quote if you are considering a thermoplastic splint.

Splint Care

When to wear it

This depends entirely on the condition the splint has been fitted for. It may be on full time, or it may only be required for particular activities. Your physiotherapist can clarify this further if you are not sure.


It is good to wash your splint about once a day - often more during the hot summer months or if you have been very physically active. The splint can be soaked, scrubbed, disinfected or deodorised! Cool soapy water is usually effective.



Your splint is completely waterproof. It is safe to wear while showering, bathing, washing dishes, and even swimming. Just make sure you dry it thoroughly afterwards.

Heat sensitive

Your splint will become soft and lose its shape at about 60 degrees C or above. This means it will not melt while you are wearing it, even in a really hot shower! Be careful what you do with the splint when it is not on your hand:

  • Do not leave it in the car on a sunny day

  • Do not dry with a hair-dryer

  • Do not wash in the dishwasher

Mallet Finger Injury

This short video will help you remove, clean and re-apply a splint for a Mallet Finger Injury