Hi Float - Balloon Sealing Solution

HI-FLOAT and SUPER HI-FLOAT are water-soluble plastics specially formulated to hold in helium. They dry inside the latex balloon to form a barrier coating which helps hold in helium. When used properly the SUPER HI-FLOAT makes latex balloons float up to 10 times longer than untreated balloons and the new ULTRA HI-FLOAT can make balloons float up to 25 times longer.

Read the Hi Float Book for complete details.

A simple rule of thumb is that you may use Hi-FLOAT if the coating is on the inside of the balloon.

Yes. HI-FLOAT is non-toxic, non-irritating, non-corrosive, non-flammable and biodegradable. They are very similar to the adhesive found on the back of postage stamps. Wash off the skin with water. If accidentally splashed into the eyes, flush with water for several minutes.

When used properly, SUPER HI-FLOAT increases floating life about ten times. The following table shows the typical floating lives for various sizes of balloons.

Number of
Balloons Per
242 Helium Tank
Flying Time
Helium Only*
Flying Time
Helium and
Flying Time
Helium and
Ultra HI-FLOAT *
11" STANDARD COLORS 485 12-24 hrs. 4-10 days 1-4 weeks
485 12-24 hrs. 4-7 days 1-3 weeks
14" ROUND 240 26-30 hrs. 8-14 days 2-5 weeks
16" ROUND 180 30+ hrs. 14-20 days 3-7 weeks
18" ROUND 130 36+ hrs. 16-24 days 3-8 weeks
17" HEART 268 14 hrs. 2-3 days 3-8 weeks
16" GEO DONUT® 340 22-26 hrs. 3-5 days 4-12 days
16" GEO BLOSSOM ® 400 18-24 hrs. 2-4 days 3-10 days
24" ROUND 50 2-4 days 18-30 days 4-10 weeks
3' GIANT 15 3-5 days 4-8 weeks 6-20 weeks


* Please remember that these are estimates based on typical indoor conditions and following all of the instructions contained in this website. Flying time will be less if outdoors. Flying time varies greatly due to factors such as latex quality, humidity, temperature, altitude, etc. Balloons typically half as long in hot, humid weather. For maximum floating life, hand-tie balloons.


- Basic directions

- The " dry" method

- Coating The Outside Of The Air Filled Balloons After Inflation

- Coating The Outside Of Balloons Before Inflation


- Cleaning the pump dispenser



Basic directions

How to use SUPER HI-FLOAT or ULTRA HI-FLOAT to increase float life:

Attach the dip tube to the bottom of the pump as shown in Fig. 1. The nipple on the bottom of the pump fits inside the end of the dip tube. For bottles other than gallon size, cut off the dip tube as follows.

Bottle Size Dip Tube
96 oz Cut to 5 1/2"
Quart cut to 1 3/4"
24 oz do not use dip tube

700ml 141 X 28cm Balloons
2.8 Litres 567 X 28cm Balloons


Clips are color-coded as follows:

Clip Sizes
Balloon Size
11 inches blue white
14 inches yellow blue
16 inches green yellow


Slide the balloon onto the pump outlet to as far as it will go in order to inject the HI-FLOAT deep inside the balloon as shown in Figure 2. The end of the pump nozzle should be in the bulb of the balloon. Depress the pump plunger as far as it will go. Remove the balloon from the pump. Pinch the neck of the balloon as you remove it to clean off the nozzle and keep HI-FLOAT out of the stem of the balloon.

Make sure the pump returns to the full upright position after each stroke. If necessary, lift up on the cap before treating the next balloon. Gently rub the balloon a couple of times as shown in Figure 3 to spread the liquid over the inside surface. While rubbing, hold the balloon opening elevated to allow air to escape and to prevent liquid from entering the stem of the balloon.

Inflate the balloon in the usual manner and hand tie. We recommend rotating your helium nozzle downwards as shown in Figure 4 to reduce splatter and help keep the liquid out of the balloon stem . A key to minimizing mess when using HI-FLOAT is to keep it out of the balloon stem where it can leak on to the hands when tying.

When the balloon is first inflated it should float up straight but it will not be very buoyant until the HI-FLOAT dries which takes a couple of hours. After drying, the balloon will have nearly as much upward pull as an untreated balloon. If the balloon does not float, or leans to one side when first inflated, see Troubleshooting Guide.

With a little practice you should be able to treat balloons neatly and quickly.

Back to top




The "dry" method

If a treated balloon bursts before the coating dries it can be messy and cause a complaint. A method was developed by a number of HI-FLOAT users to solve this problem called the " dry" method because the coating is allowed to dry overnight before the balloon is given to a customer.

Some of the advantages are:

* If a balloon pops there is no mess.
* Balloons float well initially since the dried coating weighs very little.
* Gives the maximum floating life possible.
* Balloons are less likely to burst.
* Eliminates uneven spots of liquid sometimes visible in clear balloons before drying.


This method consists of the following steps:

Step 1. At the end of the day treat enough balloons on the inside with HI-FLOAT to cover the next day's orders. Inflate the balloons with helium and seal with plastic clips or discs.

Step 2. Allow the balloons to dry overnight. In the morning remove the clips and give the balloons an extra shot of helium to regain their full size. Hand-tie the balloons.

This results in a fully inflated balloon coated with HI-FLOAT which is completely dry. If a balloon accidentally pops there is no mess!

The key to this method is to keep the HI-FLOAT out of the stem of the balloon so it can be re-inflated the next day. Inject the liquid deep inside the balloon then pinch the stem closed when rubbing the balloon to spread the coating. Be sure to treat extra balloons for those unexpected orders.

Giving the balloons a shot of helium the next day is quick and easy with a little practice.

Many balloon shops use this method to treat every balloon they sell.

Back to top




Coating The Outside Of The Air-Filled Balloons After Inflation

A dilute HI-FLOAT coating may be applied to the outside of the latex balloon after it is inflated to keep it from oxidizing (turning chalky). This is especially useful for those arrangements where items such as stuffed animals are put inside of clear balloons and it is important that the balloon remain clear for a long time. Treating the outside of an air-filled clear balloon will keep it bright and clear for several weeks if it is cared for properly. The following photo shows a bear in the balloon where one-half of the balloon has been coated with HI-FLOAT. The treated half remains clear even after several weeks! The un-coated half started turning chalky in a few days.


Warning: Air-filled balloons having an external coating of HI-FLOAT must be kept in an air-conditioned location in hot weather. Exposure to heat and/or high humidity can cause the balloon to burst or deflate prematurely.

We recommend using regular HI-FLOAT for all coatings on the outside of balloons. ULTRA HI-FLOAT is not suitable for this use.

This dilute coating method does not work well on helium filled balloons since it can cause streaking.

Step 1. Inflate the balloon and stuff it as usual.

Step 2. Attach the stuffed balloon to a cup and stick to provide a handle.

Step 3. Mix one cup of HI-FLOAT with 2 cups of warm water. Stir gently to avoid making foam.

Step 4. Place the balloon in a large pan and gently pour the liquid over it while slowly rotating the balloon as shown in Figure 6 . Make sure the entire outside surface of the balloon is wetted.

Step 5. Hang the coated balloon up by the handle so that it can drip and dry. Under normal conditions drying takes about 30 minutes.

Drying can be quickened by using a handheld hair dryer. Do not aim the blower at one spot too long since this could burst the balloon.

The liquid which drains into the pan may be placed in a capped bottle and saved for reuse. Refrigerate during storage to keep mold from forming.

Any bubbles in the coating will collect at the lowest point. Wipe this spot gently with a damp sponge after drying about 15 minutes. After drying, touch up any missed spots with the small brush.

Do not dilute the HI-FLOAT more than two parts water to one part HI-FLOAT. A more dilute solution will not wet the balloon surface properly and the final coating will be spotty.

Never dilute HI-FLOAT for coating uninflated balloons since this will drastically reduce floating life! Used the diluted material only for coating balloons which are already inflated.

This outside coating will also remove oxidation which has already occurred.

This technique will keep balloon animals made from twisted 260 balloons looking big and shiny for several days. Simply place the animal in the pan, pour the diluted mixture over it, and hang it by the knot until dry.

Back to top




Coating The Outside Of Balloons Before Inflation

This method is a quick way to apply a regular HI-FLOAT coating to the outside of balloons before they are inflated. It can be used for helium-filled balloons. Will increase the floating life about five times and has the added advantage of keeping balloons from oxidizing for an extended period. The coating usually dries in a few minutes. A disadvantage of this technique is that it is somewhat messy. Step 1. Place an uninflated balloon over a pencil and dip the balloon into a glass of HI-FLOAT to the stem as shown in Figure 7. Keep the liquid out of the inside of the balloon. Make sure the entire outside of the balloon is wetted except for the stem. If folds form in the balloon withdraw it from the liquid and then re-dip it to wet the entire outside.

Step 2. Remove the balloon from the liquid and let it drain for a couple of minutes.

Step 3. With the helium nozzle pointed downward as shown in Figure 8 , slip the balloon onto the nozzle and inflate it while the balloon is still wet. The balloon will stop dripping as soon as inflation begins. It will dry within a few minutes.

Step 4. Seal the balloon and attach a ribbon. Try not to touch the balloon except near the stem until it is dry.

NOTE: ULTRA HI-FLOAT is not suitable for this use.

Back to top





Allow adequate drying time for balloons to avoid cleanup jobs. We recommend using ULTRA HI-FLOAT since there is less mess. We also recommend allowing balloons to dry a couple of hours before giving them to customers.

HI-FLOAT is completely soluble in water, even after it has dried. It dissolves much quicker in hot water.

On nonporous surfaces such as counter tops, allow spilled liquid to dry then simply peel it up and discard.

On machine washable fabrics wash in warm or hot water if possible. Presoak a few hours if the HI-FLOAT has completely dried.

For dry cleaning, you must inform the cleaner that the spot is soluble in water and/or steam.

On upholstered fabrics the HI-FLOAT can be removed by dipping a toothbrush into a cup of hot water and rubbing the spot to soften it. Then blot with a dry towel. Repeat wetting and blotting several times as necessary. After drying, if any trace remains, repeat the procedure. Brush felted fabrics to restore nap.

Back to top




Cleaning the pump dispenser

A pump dispenser should last through several bottles of HI-FLOAT or SUPER HI-FLOAT. The pump may be cleaned it as follows:

  • Unscrew the top of the pump and place both sections in a pan of hot tap water. Let stand overnight.
  • Rinse the pump parts with warm water. Make sure the air holes under the threaded cap are clean. Reassemble.

Back to top





HI-FLOAT, SUPER HI-FLOAT, and ULTRA HI-FLOAT are effective if used as instructed. With the exception of this warranty, there are no other warranties, express or implied, including warranties of merchantability or fitness for a particular purpose. The HI-FLOAT company cannot be responsible for use of the product after purchase. Purchaser's remedies shall be limited to refund of purchase price and, in no event shall the HI-FLOAT company be liable for any amount in excess of the original purchase price of the product or for any incidental or consequential damages.




* Balloons don't float when first inflated
* Reducing splatter inside balloons
* HI-FLOAT or SUPER HI-FLOAT "beads up© inside balloon
* Haze on inside of balloon
* Product discolors in the bottle (mold)
* Product gets too thick to pump (gel )



Balloons don't float when first inflated

Treated balloons should float straight up when first inflated. If your balloon does not float straight up or leans to one side, then you either have too much HI-FLOAT in the balloon or not enough helium.

Check to make sure you are using the correct restriction clip on the pump and that you're not using a helium/air mixture to fill the balloon.

Make sure the balloon is fully inflated. The balloon should be inflated until it begins to become pear shaped. Some people first inflate their balloons with air to stretch them. They then inflate them with helium. This allows the balloon to be inflated to a larger size.

If the balloons still do not float well initially, then either don't push the pump down all the way or switch to the next longer size restriction clip. This will reduce the amount of HI-FLOAT injected into the balloon . However, it will also give less floating life.

Your balloons will get more buoyant as the HI-FLOAT dries. When completely dry, the balloon will float with nearly the same upward force as an untreated balloon.

Back to top




Reducing splatter inside balloons

When using HI-FLOAT in clear or transparent balloons, some uneven runs of liquid may be visible initially. These will gradually disappear as the coating dries.

This splatter can be minimized in the number of ways. Use ULTRA HI-FLOAT. Since you use less it will be less visible. Try inflating the balloon more slowly with the helium nozzle pointed in a downward direction. Also, when rubbing the balloon to spread the coating, rub gently to avoid working bubbles into the liquid.

If the HI-FLOAT is very old and has begun to get thick and stringy (gel ) it will be more visible inside the balloon . This gel can be re-dissolved by heating.

Back to top




HI-FLOAT or SUPER HI-FLOAT "beads up© inside balloon

HI-FLOAT and SUPER HI-FLOAT work well on all major brands of latex balloons. However, occasionally we find a balloon which has an oil coating which interferes with the HI-FLOAT wetting the inside of the balloon. When this happens the HI-FLOAT or SUPER HI-FLOAT "beads up© similar to water on a freshly waxed car. In this case treatment gives very little increase in floating life. Use ULTRA HI-FLOAT with these balloons and you should not have this problem.

Back to top




Haze on inside of balloon

Shortly after inflating a balloon you may notice a haze or cloudiness on the inside of the balloon. (Oxidation occurs on the outside of the balloon.) This may be caused by adding less than the full recommended amount of HI-FLOAT. Make sure you are using the correct colored clip for that size balloon.

Back to top




Product discolors in the bottle (mold)

A dark green mold can grow on the surface of HI-FLOAT in a bottle which has been opened for several months. This is very similar to the mold which grows on bread. If this happens scoop off and discard the discolored material. Quickly use the remainder of the bottle.

Do not pour the small amount left in an old bottle into a new bottle since this can seed the new bottle with mold. Wash off the pump when transferring to a new bottle.

If mold is a recurring problem in your area, purchase HI-FLOAT in the smaller size bottles since it will be used more quickly.

Back to top




Product gets too thick to pump (gel )

Normally HI-FLOAT has the consistency of honey. However, with excessive age it can begin to gel and will get very thick and lumpy. ULTRA HI-FLOAT may begin to gel if it has been frozen. If your product becomes too thick to pump, it can be re-dissolved in one of the following ways: (1) Remove the cap and heat in a microwave until hot but not boiling. Stir after removing from microwave, or (2) Pour HI-FLOAT into a double boiler and heat on a stove, or (3) Remove the pump or cap and place in a pan of water as shown in Figure 9. Boil the water in the pan for about two hours. This will heat liquid sufficiently to dissolve any gel.


Place a one-inch layer of gravel or glass marbles in the bottom of the pan as shown in figure nine to keep the plastic bottle from touching the pan during heating.

Do not allow the water in the pan to boil dry sense this will melt the plastic bottle.

Do not heat the bottle without first removing the pump or bottle cap since this could build up pressure and rupture the bottle resulting in burns or serious injury. Heat only an open bottle.

Do not heat HI-FLOAT directly with gas or electrical heat since this will scorch the HI-FLOAT and ruin it. The HI-FLOAT must be heated by placing the bottle in a pan of heated water as shown in Figure 9 or use a double boiler.

Allow the HI-FLOAT to cool to room temperature before handling to avoid the possibility of burns or injury.



Back to top