NYLON is a general purpose synthetic webbing. It is unaffected by grease or oil, and has a good chemical resistance to aldehydes, ethers, and strong alkalis. Nylon should not be exposed to either acids or to bleaching agents. This material should never be exposed to temperatures greater than 200°F. Stretch at rated capacity of a nylon sling will be approximately 6%.
POLYESTER is commonly used where a minimum of stretch is desired. This material has a good resistance to common industrial acids and hot bleaching solutions. It should never be exposed to concentrated sulphuric acid or strong alkaline solutions. Polyester material should never be exposed to temperatures greater than 200°F. Stretch at rated capacity of a polyester sling will be approximately 3%.
*Disintegrated by concentrated sulphuric acid
**Degraded by strong alkalis at elevated temperatures
Temperature Nylon and polyester are not suitable for use at temperatures greater than 200°F.
Sharp Edges Cuts, punctures and abrasions can reduce the strength of the sling. The red inner load-bearing yarns help identify damaged webbing.
Ultraviolet Light Prolonged exposure to ultraviolet light can damage the strength of both nylon and polyester webbing.
Loading Improperly Strength of sling can be degraded by chock loading. Overloading and failure to consider the angle at which the sling will be used.
Inspection All slings should be inspected for damage and defects before each use. Damaged or defective slings shall be immediately removed from service.
Angle Reduction Factors
All angles measured from vertical
The angle increase of the sling leg reduces its capacity. See chart for reduction factor. Determine the angle between the sling leg and the vertical plane, then multiply the sling rating by the reduction factor from the chart. This will determine the sling’s reduced capacity.
(Caution DO NOT Exceed Rated Capacities)