Home > Companies > Sika Sarnafil > Sarnafil Type GK

A polypropylene based fleece with a polyethylene backing, for use as a protective and/ or slip layer. It may also be used as a protection sheet under reused bitumen-contaminated gravel ballast.

UV stabilised Sarnafil Type GK can be left exposed to weathering.

Sarnafil Type GK is loose laid, but the 50 mm side and end laps must be sealed with adhesive tape, to ensure that slurry does not penetrate the felt at the edges, damaging the polyethylene film backing.

Standard product features


400 g/m².

NBS Specification

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This product is associated with the following NBS Create clause:
45-65-50/325 Plastics sheets

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Sika Sarnafil


+44 (0)1707 394444

Product reference

Sarnafil Type GK

Manufacturer details

Welwyn Garden City,
Hertfordshire, AL7 1BQ
Tel +44 (0)1707 394444
Fax +44 (0)1707 377300
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