These Specification Brushes are used with the Gardco Washability Machine, and are available either in black nylon or black hog bristles.
Select your model
Hog bristles are selected as nearly as possible to be equivalent to the specified nylon.
They are in a 5x4 wide staggered 13 row or 5 wide straight 12 row pattern (ASTM D2486 calls for nylon 5x4x13 rows)
The hog brush bristles are secured in a PVC block 3.5" long, 1.5" wide and 0.5" thick, and are uniformly trimmed to a length of 0.75"
The nylon brush bristles are 6/6 grade, 0.012" in diameter with a bristle weight in each brush of 5/8 ± 10% ounces
Total brush weight is 2.5 ounces which is 1.5 ounces lighter than current metal-backed brushes. To compensate for this difference a 1/16 inch thick stainless steel plate is furnished with each new brush that may be inserted in the brush box above the brush.
After a long period of use bristles will wear down below the original length of 3/4". Brush bristles should be periodically measured and if they reach a shortened length of 5/8", we suggest they be disposed of. The shorter the bristle, the firmer it is. The firmer the bristle, the more harsh the performance.