Rim Guard Handling Tips


  • Rim Guard is formulated using a byproduct of sugar production from sugar beets as its primary raw material.  What makes this raw material such an effective liquid tire ballast is its organic makeup that provides both significant weight and freezing  protection as well as making it safe as an animal feed. Because of the natural variation in sugar beet crops and the sugar production process, Rim Guard itself can vary somewhat from batch to batch. The organic makeup of the product has a natural tendancy to produce foam when agitated excessively with air. To minimize any foaming during installation, the following procedures should be followed:
    • Keep pump pressure at 20-40 psi to minimize agitation during installation, the lower the better.  Placing the valve stem below the liquid level (4:00 o’clock position) while filling will prevent foaming.  Spraying Rim Guard at high pressure against the rim (12:00 o’clock position) can create foam and make the tire fill process less efficient.
    • Make sure all line connections between the tank and pump and the pump and valve stem are air tight; otherwise, air can be sucked in and mixed with Rim Guard and foaming may result.


  • It is recommended that all internal passages of pumps, valves, and installation hoses be rinsed with water after each installation. If the pump is also used for other liquid tire ballasts, especially calcium chloride, it is recommended that the system be flushed with water before pumping Rim Guard.


  • If switching from a different tire ballast to Rim Guard, it is recommended that tires (and tubes if used) be rinsed with water if they have previously held other types of liquid ballast.


  • As with the installation of any liquid tire  ballast, it is recommended that in tubeless tires rubber valve stems be replaced with metal valve stems. For the most part, rubber valve stems are not manufactured with the idea that they will be used to hold liquid in the tire. Over the years the quality and design of rubber valve stems has changed and they now seem to be more susceptible to having the adhesive, which holds the core in place in some rubber valve stems, dissolving when in constant contact with liquid. If the adhesive dissolves, the core can come out of the stem when the cap is removed and loss of liquid will result.  Metal valve stems hold the core in place mechanically and do not have this risk.


  • Locate the storage tank where a semi-trailer (48’ trailer plus tractor) can get within 20 feet of the tank.  If the tank is located inside, have enough 2” hose to reach the discharge hose on the semi-trailer.


  • Rim Guard is somewhat slower to pump in extreme cold conditions.  Transferring  liquid to a tote (portable 275- or 330-gallon tank) from the main tank and moving the tote into the shop during extremely cold weather will improve pumping ease.


  • Inflate all tires to the pressure specified by the load conditions once the desired fill level is reached.


  • Radial Tires can be ballasted to further increase their traction.  Fill radials to the 2:00 valve stem level rather than 12:00 (for bias ply tires).  Filling a radial to the 12:00 position often makes a radial tire round out (act like it’s over-inflated) and you lose the large footprint that radial tires provide.  Multiply the data on the fill chart by .80 for radial tires.


  • Rim Guard can be stored in any tank material suitable to handle its weight.  Always try to draw Rim Guard from the bottom of the tank to minimize accumulation of solids that tend to settle out over time


  • Do not mix Rim Guard with any other liquid ballast.  Chemical reaction or foaming may result.


  • It is not necessary to install tubes in tubeless tires for Rim Guard.  Rim Guard coats the rims so they never rust.  Minor tire punctures in tubeless tires can be plugged without removing Rim Guard.


  • Rear dual tire applications. If the outside tires are going to be occasionally removed only fill the inside tires.  This makes the outside tires easier to handle.  If the outside tires are rarely removed fill all tires to 40% – 50%.  This spreads the weight over a much larger surface area and reduces soil compaction.


  • Pumping Rim Guard Out of a Tire.  If foam has formed in the tire due to agitation of the rolling tire allowing the tractor to stay stationary for several hours before removing the liquid enables the foam to break down and go back to a liquid state. If you can’t pump out any more liquid and there is excess foam in the tire, mix 1 – 4 cups of concentrated defoaming solution to a 5 gallon pail of water.  Defoamer is available from Rim Guard.  Pump this solution into the tire and turn the tire so the solution mixes thoroughly with the foam.  Wait 5-10 minutes for the foam to dissipate and continue to pump out the liquid


  • If you have questions, concerns, or other helpful  hints about Rim Guard, please call us at 866-792-3700.




Rim Guard™ Metric Tire Hydro-Flation Table

View as a PDF (75k)

75% Full or Valve Level


Tire Size Gal. of
Rim Guard
Weight (lbs.)
240/70R16 8  86
250/80R16 12  128
250/80R18 13  139
250/95R34 24  257
250/95R50 32  342
260/70R18 10  107
260/80R20 15  161
290/95R34 34  364
290/90R38 34  364
320/70/R24 23  246
320/75R24 25  268
320/85R34 38  407
320/85R38 37  396
320/80R42 40  428
320/90R42 49  524
320/90R46 52  556
320/90R50 55  589
320/90R54 56  599
340/80R18 27  289
340/85R46 57  610
380/70R20 31  332
380/70R24 36  385
380/70R28 41  439
380/85R28 50  535
380/85R30 54  578
380/85R34 56  599
380/80R38 56  599
380/90R46 76  813
380/90R50 79  845
380/90R54 84  899
385/85R34MPT 60  642
420/70R24 47  503
420/70R28 53  567
420/80R46 86  920
420/85R28 66  706
420/90R30 72  770
460/70R28 71  760
460/70R30 75  803
480/70R34 83  888
480/80R38 105  1124
480/80R42 113  1209
480/80R46 119  1278
480/80R50 125  1338
480/85R34 99  1059
VA500/95D32 138  1477
520/85R38 133  1423
520/85R42 142  1520
520/85R46 153  1652
540/65R30 80  856
580/70R38 142  1520
600/65R28 99  1060
620/75R26 125  1338
620/70R42 169  1817
620/70R46 183  1967
650/75R32 162  1742
650/75R34 185  1989
650/85R38 229  2462
650/65R42 164  1763
710/70R38 201  2161
710/70R42 228  2451
750/65R26 168  1806
800/65R32 202  2172
800/70R38 265  2849
900/50R42 235  2526
900/60R32 270  2903
900/65R32 289  3107
Note: For 40% fill, multiply above values by 0.5.


Rim Guard™ Hydro-Flation Table for Commercial/Construction Tires

View as a PDF (55k)

75% Full or Valve Level


Tire Size Gal. of
Rim Guard™
Weight (lbs.)
8.25-20 14.5 156
9.00-20 18 193
10.00-20 21 225
11.00-20 23.8 225
12.00-24 31 332
13.00-24, 25 38 407
14.00-20 43 461
14.00-24, 25 48 514
16.00-24, 25 67 717
18.00-24, 25 96 1,028
15.5-25 46 493
17.5-25 60 642
20.5-25 90 963
23.5-25 118 1,263
26.5-25 159 1,702
26.5-29 174 1,862
29.5-25 207 2,215
29.5-29 224 2,397
29.5-35 251 2,686
33.25-35 319 3,414
33.5-33 328 3,510
33.5-39 363 3,885
37.25-35 373 3,992
37.5-33 423 4,527
37.5-39 466 4,987
37.5-51 552 5,907
35/65-33 291 3,114
40/65-39 416 4,452
45/65-45 586 6,271


Compact/Utility Growth Drives Rim Guard™ Ballast Sales

Over the past several years, the compact and utility tractor market has experienced rapid growth. These tractors often have more horsepower than their weight can effectively use. Adding ballast significantly improves stability, pulling power and efficiency by reducing wheel hop and slippage.

Typically the answer has been to add a calcium chloride solution to the tires, “suitcase” weights on the tractor’s nose, or wheel weights. Calcium chloride is extremely corrosive, toxic and requires a tube. RIM GUARD™ is a new liquid ballast that has been developed as an environmentally friendly alternative to calcium chloride and other liquid ballast solutions. Patented in 2001, Rim Guard™ is non-corrosive, non-flammable, non-toxic, biodegradable and does not freeze down to -35°F.

Iron weights are expensive ($1-$2 per lb.) and often are located where they don’t do the most good. Rim Guard™ costs about $.28 per lb. retail. If the tractor has a front-end loader, iron weights can be detrimental to the tractor’s balance and overall weight distribution. website tech info The weight is needed in the rear to counter the weight of the loader and to maximize traction. Rim Guard is loaded in the rear tires where it is most needed. It also can be loaded in the front tires of 4WD tractors to further enhance traction and in 2WD models to reduce nose lift when pulling heavy loads. Rim Guard will lower the center of gravity, thereby increasing vehicle stability on hilly or sloping terrain and greatly enhance operational safety.

Rim Guard™ is made from an agricultural byproduct with other additives and weighs 10.7–11 lbs per gallon. Besides farm and compact tractors, Rim Guard is used in backhoes, skid steers, sky lifts, all-terrain forklifts, rear wheels on combines, and pay loaders. web service security . Even large eight-wheeled tractors will partially fill their tires with Rim Guard™ to reduce wheel slippage.

Because Rim Guard™ is totally non-corrosive, tubes are not needed, saving both the cost of the tube and the labor to install it. With Rim Guard™, you’ll never have to replace a rim due to corrosion and never have to struggle with a tire that is fused by rust to the rim along the bead. When equipment needs ballast, the best choice is Rim Guard™.

Rim Guard, Inc.
Tel: (616) 608-7745
Fax: (616) 608-7749
1575 Gezon Parkway SW, Suite E
Wyoming, Michigan 49509

Dealer Inquiries Welcome