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Dongsung Advanced Materials Co., Ltd.

HiMax Biaxial Fabrics: LT (0°/90°) (200 – 1250 g/m²) with or without CSM (100 – 450 g/m²), DB (+45°/-45°) (200 – 1100 g/m²) with or without CSM (100 – 450 g/m²)

Polyester & Vinyl Ester Resins · Composite Materials & Resins

Class-certified type (DNV register) · technical data sheet not yet verified​​⁠​⁠‍‌⁠‍​​‌⁠‍‍‍‍⁠⁠‍
Example image: Polyester & Vinyl Ester Resins — not a photo of this model.

Dongsung HiMax Biaxial Fabrics: LT (0°/90°) (200 – 1250 g/m²) with or without CSM (100 – 450 g/m²), DB (+45°/-45°) (200 – 1100 g/m²) with or without CSM (100 – 450 g/m²) by Dongsung Advanced Materials Co., Ltd. DNV TA certificate TAK0000290.

Inspection

Inspector Detail

Common issues

  • Fabric batch not matching the resin system specified in the class-approved laminate schedule
  • Fibre orientation error during layup versus the approved biaxial (0/90 or +45/-45) design
  • Resin-to-glass ratio out of specification - dry spots or resin-rich areas - during wet layup or infusion
  • Moisture/humidity absorption of the fabric roll before use, affecting laminate quality
  • Storage damage - creasing or contamination - of fabric rolls before use

Inspection checklist

  • Batch/roll traceability against the DNV Type Approval certificate
  • Fibre areal weight verification against the specified grade range
  • Laminate resin content check (burn-off test or theoretical calculation) after cure
  • Visual inspection of the cured laminate for dry spots, delamination or voids
  • Storage condition check (temperature, humidity, UV exposure) prior to use
  • Witness of the layup sequence against the approved laminate schedule for class-approved hull structures

Service intervals

Fabric roll shelf life before useper the manufacturer's datasheet - store sealed and dry, confirm before use on an approved laminate
Laminate schedule revalidationwhenever the fabric batch, areal weight or resin system changes from the approved combination

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Critical spares

  • Matching fabric roll from the same Type Approval (correct grade/areal weight - do not substitute)
  • Matching resin system from the approved combination on the Type Approval certificate
  • Dry, sealed storage for unused rolls

Safety

  • Glass fibre dust and skin irritation during cutting and handling - PPE required
  • Resin/hardener fumes during layup - ventilation and respiratory protection required
  • Styrene-based binder fumes if chopped strand mat (CSM) layers are combined with the fabric

Class survey

Note: this entry is categorized under Polyester & Vinyl Ester Resins, but the certified product under TAK0000290 is a glass reinforcement fabric (biaxial, with or without CSM), not a resin - the content above addresses the fabric. Class reviews the Type Approval certificate for fibre type and areal weight range together with the approved resin systems, and checks laminate records (resin batch, cure log, ambient conditions) against the approved laminate schedule for the specific hull structure.

Classification

DNV type approval

Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.

CertificateTAK0000290
Open the certificate at DNV
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