Super Slings Inc.505 - 11 Avenue

Nisku, Alberta CanadaPh: (780) 955-7111

www.superslings.ca

Nylon��vs.�Polyester

Did�you�know?�At�Super�Slings�we�are�committed�to�growing�and�improving�our�industry�by�informing�our�customers.�Our�Did you know information�packets�are�designed�to�highlight�lesser�known�facts,�industry�trends,�codes,�regulations�and�product�information�that�every�operator,�rigger,�or�worker�should�know.

A�common�misconception�in�the�lifting�industry�is�that�all�web�slings�are�made�the�same,�this�is�far�from�the�truth.�Not�only�are�there�nylon�and�polyester,�but�there�are�also�different�grades�and�qualities�of�both�materials.�While�both�materials�have�their�benefits�and�detriments,�it�is�up�to�the�user�to�determine�the�proper�material�for�their�specific�application.�Over�the�last�few�years�the�industry�standard�has�slowly�been�moving�away�from�nylon�and�more�towards�polyester,�mainly�due�to�cost.�When�determining�which�material�to�use�there�are�two�main�factors�to�consider,�stretch�and�chemical�reaction.�The�information�in�this�pamphlet�will�give�you�a�good�start�on�how�to�determine�which�material�is�right�for�your�application.

The�Facts:

Nylon:Ÿ 7-10%�stretch�at�WLL�(rated�capacity)

stretch�helps�avoid�shock�loading�and�ensure�tighter�fit�when�chokingŸ Chemical�resistance�-�nylon�should�not�be�used�around�acids�or�

bleaching�agents.�See�chemical�chart�or�more.

Polyester:Ÿ �2-3%�stretch�at�WLL�(rated�capacity),�lower�quality�polyester�may�

stretch�up�to�10%,�consult�your�manufacturer.Ÿ Chemical�resistance�-�polyester�should�not�be�used�near�aldehydes.�

See�chemical�chart�or�more.Ÿ Polyester�slings�must�have�a�tracer�thread�in�the�center�of�the�

sling�to�identify�the�material.

www.superslings.ca/DidYouKnow.aspx

Tracer StrandTracer StrandTracer StrandPolyesterPolyesterPolyester

NylonNylonNylon

Super Slings Inc.505 - 11 Avenue

Nisku, Alberta CanadaPh: (780) 955-7111

www.superslings.ca

Nylon��vs.�Polyester

Super�Slings�Inc.����(780)�955-7111

All Super Slings synthetic web slings are clearly marked with the material type and all other necessary information according to Alberta OH&S and ASME standards

Super Slings Inc.505 - 11 Avenue

Nisku, Alberta CanadaPh: (780) 955-7111

www.superslings.ca

Nylon��vs.�Polyester

www.superslings.ca/DidYouKnow.aspx

Chemical�reactivity�chart Nylon

NOOKOKOKNOOKOKOKOKOKOKOKOKOKOK

AcidsAlcoholsAldehydesStrong�AlkalisBleaching�AgentsDry�Cleaning�SolventsEthersHalogenated�Hydro�CarbonsHydro�CarbonsKetonesOils�CrudeOils�LubricatingSoap�&�DetergentsWater�&�Sea�WaterWeak�Alkalis

*OKNO**OKOKNOOKOKOKOKOKOKOKOK

Polyester

* Disintegrated by concentrated sulfuric acid.** Degraded by strong alkalis at elevated temperatures.

MaterialNylonPolyester

66.426.18

1010.710.3

1617.1216.48

88.568.24

1212.8412.36

2021.420.6

3032.130.9

Stretch�Comparison�at�WLL�(Rated�capacity)

Original�Length

Nylon�Sling�at�WLL�(rated�capacity)

Polyester�Sling�at�WLL�(rated�capacity)

Length�in�feet

Lifting�with�Nylon�or�Polyester�Web�Slings

Super�Slings�Inc.����(780)�955-7111

Polyester

Nylon Polyester

Nylon

Nylon Polyester

Wrong

Right Right