Det Norske Veritas - Germanischer Lloyd

DNVGL  Polyester resin, vinylester resin, gelcoat and topcoat
 N DNVGL-CP-0083

Annotation

This CP gives a description of the procedures and requirements related to documentation, design and type testing applicable for TA of polyester resin, vinylester resin, gelcoat and topcoat.

This CP does not set the design requirements to the polyester resin, vinylester resin, gelcoat and topcoat. TA is based on compliance with design requirements given in the rules and standards. The CP describes how to document compliance with the requirements in order to obtain a TA certificate for the equipment. This includes, where relevant, technical requirements for how the type tests shall be performed.

This class programme includes requirements for:

resins for structural laminates

resins for fire retardant laminates for use in lifeboats

gelcoats and topcoats

fire retardant gelcoats and topcoats for use in lifeboats.

The approval of polyester and vinyl ester is divided into two different quality grades. Grade 1 and Grade 2 corresponds to grade A and grade B in ISO 12215-1:

Grade 1: Quality with good water resistance.

Grade 2: Quality with normal water resistance.

One type approval certificate will be valid for one quality of the actual product with the possibility to include variants.

For polyester- and vinyl ester resins this means: