Chemical Environmental Data
While Web Slings may be used in many different applications, there are chemical data and physical factors that must be taken into consideration before choosing a sling.
| Nylon | Polyester | |
|---|---|---|
| Acids | NO | * |
| Alcohols | OK | OK |
| Aldehydes | OK | NO |
| Strong Alkalis | OK | ** |
| Bleaching Agents | NO | OK |
| Dry Cleaning Solvents | OK | OK |
| Ethers | OK | NO |
| Halogenated Hydrocarbon | OK | OK |
| Hydrocarbons | OK | OK |
| Ketones | OK | OK |
| Oils-Crude | OK | OK |
| Oils-Lubricating | OK | OK |
| Soaps & Detergents | OK | OK |
| Water & Sea Water | OK | OK |
| Weak Alkalis | OK | OK |
*Disintegrated by concentrated sulfuric acid
**Degraded by strong alkalis at elevated temperatures
Physical Factors Effecting Strength
| Web Slings | Roundslings | |
|---|---|---|
| Temperature | Nylon & Polyester are seriously degraded at temperatures above 194ºF | Polyester is seriously degraded at temperatures above 194ºF |
| Improper Loading | Shock loading, unbalanced loading, over loading and inadequate consideration for the effect of angle factors can adversely effect strength. | Shock loading, unbalanced loading, over loading and inadequate consideration for the effect of angle factors can adversely effect strength. |
| Cuts, Punctures, Abrasions | Any of these can seriously degrade sling strength. Red core yarns can aid in locating damaged webbing. | When the sleeve on a roundsling has been damaged so that the inner load bearing yarns are exposed, the sling MUST be discarded. |
| Foreign Matter | Material such as metal chips, weld splatter, heavy grit, etc. can damage a web sling both internally and externally. | Material such as metal chips, weld splatter, heavy grit, etc. can damage the roundslings cover. |
| Ultraviolet Light | Nylon & Polyester web slings are adversely affected by prolonged exposure to UV light, i.e. sunlight or arc welding. | Round slings are adversely affected by prolonged exposure to UV light, i.e. sunlight or arc welding. |
WARNING: Do not exceed rated capacities
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