At a big glass recycling plant in Portland, Oregon, Shift Foreman Don Gordon drives the front-end loader into a glittering green slope of broken bottles. 
“Without having my tires foam filled, my machine would probably be out of service at least once EACH hour”
After about six months, the tires are also retreaded by Industrial Tire Service in Portland, “We can recap most of these 6 or 7 times”
Your warehouse man nervously informs you there is someone to see you! Unfortunately it’s not
Publishers Clearing House to present a big check. It’s your city Fire Marshall and a representative from the Environmental Protection Agency.
With a heavy case of cotton mouth, he explains how he dumped a full tote of fill into the adjoining street. After you catch your breath, the first thing you will probably be asked is:
“Where are your MSDS documents?”
Unfortunately this scenario really happened. The Dealer was able to provide the necessary Material Safety Data Sheets to satisfy both parties.
Each initial pump install is sent with these important documents.
“What pressure should I put in the tire”? 
This is probably the most commonly asked question about the fill process.
Unlike an air filled tire, the only opportunity you have to adjust the pressure on a poly filled tire is during processing. This is why you must get it right the first time. The correct way to determine proper pressure is to add the weight of the machine and the load it is carrying. This information, along with application, speed, & distance of travel, should all be considered when consulting the manufacturer’s book for recommended pressure. A pressure rating is sometimes listed on the sidewall of the tire. Remember, this is usually a maximum pressure. Putting too much pressure in a tire can result in a rough ride and premature wear. Too little pressure can result in uneven wear and excessive heat buildup.
Here is a link to explain this further: Pressurization – the details
During the past 40 years, the actual process of filling a tire has not changed too much. However, during the past few years new equipment has been introduced to the industry. While each can be successfully used to fill and flatproof a tire, only one is warrantied by the manufacture.
Please click the link below to learn about the difference processes now available:
Please click on below link:
Tire Flatproofing WEIGHT CHART