Replacement polymer for Hytrel 6108 1

[benplunkett]

We have a product with a boot moulded from hytrel6108, we need to get marine approving on this product and to do this need to pass a flame retardancy test (IEC 60695-11-05).

The current hytrel failed on the second flame application.

The polymer will be used submerged in ballast tanks and fuel tanks on ships so needs to have very low water absorption, and oil compatibility. Flexibility is also important to maintain the seal between cable and body.

I'm trying to get a sample of 52FR, a fire retardant additive for the current polymer to test but can anyone suggest an alternative polymer if this isn't acceptable?

Thanks in advanced, Ben

 

[Pud]

Arnitel by DSM do FR versions:

Arnitel® PL460-S | TPC-ET FR(17)
46 Shore D, Injection Molding, Flame Retardant

Arnitel® UM551-V | TPC-ES FR
55 Shore D, Flame Retardant (halogen- phosphorous-free)


Harry

http://www.tynevalleyplastics.co.uk

 

[patprimmer]

Arnitel would be my first choice as it is chemically in the same field as Hytrel.

If that fails, Polyurethane might be of interest.

PEBAX might also warrant a look see.

Regards
Pat
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[benplunkett]

Cheers Harry - looking into them now

 

[benplunkett]

the 551-v is looking promising, thanks for the suggestion!