No More Flats

Engineered Polyurethane Fills for your tires

Rev. 04/2012A

WWW.OTRWHEEL.COM

Phone us at: 800-833-6309

OTR Wheel Engineering is your premier supplier in the United States for

Polyurethane filled tire/wheel assemblies. Go with the best!!!

OTR Wheel Engineering and all of its associated divisions are

recognized as being the largest supplier of foam filled tire/wheel as-

semblies in United States by volume of foam pumped annually.

A big part of OTR Wheel Engineering’s business is being a

major supplier of mounted tire/wheel assemblies to Original Equipment

Manufacturers (OEM’s) that manufacture

rubber tired equipment. Many of the OEM’s that we service either

build equipment or have customers that demand foam filled tires. OTR

services many of these OEM customers through its many strategically

located certified foam fill

facilities and its customized Just-In-Time (JIT) delivery

programs tailored specifically to meet the demands or

requirements of OEM’s.

OTR also is very active in servicing aftermarket customers with very large fleets of equipment that require

flat proofed tires on the equipment they have in the field.

Soft More air like ride

8 to 12 durometer

Medium 20 to 28 durometer

Medium Hard 30 to 35 Durometer

Hard 45 Durometer and

greater

OTR Virgin Polyurethane Fill Choices

Polyurethane foam fills

come in different hardness

ratings (durometer scale)

for different applications.

With the large variety of

equipment types, applica-

tions for use, end user site

specific conditions and

other unique

requirements that may be

present, choosing the

right durometer of foam

fill is essential. Basically

there are four ranges of

foam fill hardness:

OTR “Green” Polyurethane Fill Choices

In the last several years with the recognition of Green or environmentally friendly initiatives,

manufactures of polyurethane foam products have come out with equipment to reutilize cured foam. For many

years, once the tire in a foam filled assembly reached the end of its useful life, the worn out tire and foam fill

would have to be cut off the wheel so a new tire could be mounted and the

assembly could then again be foam filled for reuse on equipment. In many cases the foam was disposed of as

waste in a landfill.

Some foam fill servicing companies would (and some still do) cut up the used foam into smaller chunks and put

the chunks back inside of the new tire being remounted on the wheel and then virgin fill is pumped in the tire

with the chunks dispersing throughout the foam. This process is known as “chunking”. The pros for chunking

is that you need less virgin foam fill to refill the new tire assembly and therefore you save the customer pur-

chasing the new foam filled assembly some money. The cons for chunking is that it is the chunks are not con-

sistent or uniform in size and are not dispersed evenly throughout the new foam filled assembly. The chunks

can lead to voids in the foam filled assembly and those voids can lead to flat spots forming or premature failure

of the foam filled assembly due to the chunks moving inside the foam fill leading it to fracture and break down

of the foam inside the tire. OTR does NOT do any “chunking”!

The better solution was arrived at by the polyurethane

manufactures with the introduction of re-grind equipment.

Re-grinder’s as they are known take previously used foam fill chunks

and grind the foam into small pieces. In the new foam fill equipment

with re-grind pumps, these small pieces of re-grind foam are blended

back in again with virgin liquid foam fill and pumped back into the

new tire/wheel assembly. The pros for using regrind are many:

1. The process is eco-friendly.

2. Most or all of the cured foam is reutilized saving disposal cost and

landfill space.

3. Up to 50% less virgin foam fill is required saving the customer money.

4. The cure time is the same as pumping virgin foam fill.

5. There are not voids that can form around chunked foam since there are no chunks.

6. The reused material is very uniform in size and is evenly distributed with the virgin foam pumped back in the

tire.

An even better evolution in Green foam fill solutions arrives…Ecofil™

In 2009 Arnco introduced a new polyurethane product called Ecofil™. Ecofil is mostly composed of natural,

earthly, renewable resources and utilizes 50% less petroleum derived chemicals than traditional flat proofing tire

fills. Less oil means more savings and benefits to both the environment and the consumer.

Ecofil offers all the features and benefits of conventional foam fills but also adds:

1. Made from mostly renewable resources

2. Reduces oil dependency

3. Performs better than granulated fills

4. Application specific formulas

5. Costs less than conventional foam fills

6. Ecofil pumps faster than conventional fills saving labor costs

7. Is odorless

8. Is not flammable which is very advantageous in certain applications.

9. It can be disposed in a landfill because it is inert and it won’t cause chemical leaching into the ground water.

Bottom line Ecofil is safer, cheaper and greener.

Ecofil comes is three different formulations. Ecofil does require a different pump than is used to pump conven-

tional foam fills.

Corporate Offices:

OTR Wheel Engineering, Inc. 6 Riverside Industrial Pkwy Rome, GA 30161 Ph: 800-833-6309 Fax: 706-234-8137 WWW: www.otrwheel.com