Latex Balloons FAQ


What size and type of latex balloons are available? 
We sell 12 inch (30cm) latex balloons in diameter. Our range includes two finishes: pearl and standard. Pearl balloons are solid, translucent colours, featuring a sheen similar to a pearl. Standard balloons have an opaque finish and are available in bright colours.

What is a latex balloon made from?
Balloons are manufactured from a liquid rubber called latex. Each balloon gets its colour from the pigment that is added to the latex. Balloons are made of 100% biodegradable latex, which breathes and breaks down over time. 

How long does a latex balloon float for when inflated with helium? 
When a latex balloon is inflated with helium, the average float time is around 8-10 hours (less than a day), weather and temperature dependant. Balloons are adversely affected by heat, wind and sun, so keep them in a cool, dark place until needed. Whether the balloon is indoors or outdoors will also impact the time the balloon stays afloat. 

How long does a latex balloon remain inflated for when filled with air? 
Balloons filled with air will last for days to weeks, and can be filled the day before your function. Bear in mind, air filled latex balloons will not float. 

Are latex balloons eco friendly?
Latex is a naturally occurring product, and so latex balloons are 100% bio-degradable and environmentally friendly. Latex balloons should only be released into the environment with care however ribbons and seals are not biodegradable and should always be discarded correctly.



Do balloons come inflated?
No, all our balloons are packed deflated and need to be inflated with a balloon pump or helium tank

How do I know when the balloon is inflated to the correct size?
Our latex balloons are designed to be 12 inches (approximately 30cm) in diameter when filled. Latex balloons that have been properly filled should have a rounded appearance instead of a light bulb or pear shape. 

How do I fill a balloon with helium?
Every balloon has a small valve or opening at the “tail”. Slide this opening onto the nozzle of the helium tank until you have a tight fit. Make sure you hold the neck of the balloon firmly around the nozzle with one hand and press on the nozzle with your other hand to release the helium into your balloon.

How do I fill a balloon with air? 
You can use your lungs or a balloon specific air pump. When using an air pump, attach the opening of the balloon to the nozzle of the pump. Pull out the hand lever on your pump and start pumping. 

What else can I fill a balloon with?
Balloons can also be inflated with other gases, such as hydrogen and nitrous oxide. If a balloon is completely transparent, you can opt to fill your balloon with confetti and glitter. Other unique ideas include  

How do you tie a ribbon to a latex and foil balloon? 
For latex balloons, tie the ribbon between the knot and the end of the balloon. Do not tie the ribbon around the valve of the balloon or a leak may occur. To tie a foil balloon, tie a ribbon around the neck of the balloon, just below the opening. You can flip the balloon upside down so the tail faces you if that’s easier.

Are your balloons of helium quality? 
Yes. All of our balloons are made suitable for inflation with helium.

Why do helium balloons deflate more quickly than air-filled ones?
Helium balloons deflate quicker than balloons filled with air because the helium particles are smaller than the air particles; thus, they escape more easily from the balloons. In other words, the larger air particles stay longer inside the balloons than the smaller helium particles. 

Why don't my balloons float?
There are numerous reasons that cause a balloon not to float. Firstly, a balloon must be inflated with helium, making sure that the balloon is blown up to its full size. 

A common reason for a balloon not to float is when it is under inflated. Do not fill a balloon smaller than 9 inches with helium as they only float for a few hours. When the weight of the balloon exceeds the lift of the helium gas, the balloon will also not float. 

Why do balloons deflate?
Balloons are not perfectly air-tight and deflate over time. Air can slowly diffuse through the surface, or leak through the knot. This effect proceeds faster with helium inflated balloons.

How can you make a balloon float longer? 
First, be sure to tie a tight knot in the neck of the balloon. If you are attaching ribbons to the balloons, be sure to tie the ribbon below the knot.

You can use a gel called “Hi-Float,” which forms a coating inside latex balloons that reduces helium or air loss. It is similar to the glue on the back of postage stamps. This gel is non-toxic. Unfortunately, we do not currently sell this item.

Do I require ribbons and clips? 
Ribbon sticks and cups are used for helium inflated balloons and sold separately. The balloon clip is fitted to the neck of the balloon. The ribbon attached is 1.2 metre long. The pre-cut ribbon and clips is sold as a unit and come in packs of 50 and are available in various colours. We also have helium tanks that includes a roll of ribbon. 

Do I require sticks and cups? 
Balloon sticks and cups are used for balloons inflated with air. The balloon cup fits on the neck of the balloon and the stick is inserted into the cup. Sticks and cups are an economical way of displaying your balloons effectively. We sell sticks and cups in packs of 50 suitable for all latex balloons, as well as 4 inch and 9 inch foil balloons. 

Can balloons be used outdoors?
If you consider using balloons for an outdoors event, we suggest using heavier balloon weights. However, we cannot guarantee the float time of balloons in unfavourable weather conditions.

Please be aware of the following: 

  • Store balloons out of light and away from heat to maintain their quality. 
  • Wind can cause balloons to tangle or pop when they are blown into a sharp object
  • Weighted down arrangements/objects are at risk of being dragged 
  • Direct sunlight can cause the colour to fade and ‘oxidise’
  • Heat may also cause helium in the balloon to expand and pop the balloon 
  • A foil balloon can appear deflated in cold air, but it will fill out when warmed up.
  • Leave them sealed in the packet until needed.

Disclaimer about releasing helium balloons

Koch & Co do not advise the release of latex balloon as they could have deadly effects on the environment and the wildlife, even though they are biodegradable.
It is now illegal to release balloon in the wild in many Australian states. Please check the current rules and regulations with your local government. 
There are many alternatives to balloon release celebrations: