Helix Coatings develops and manufactures integrated coating systems defined by measurable technical specifications and certified long-term performance.
Each product forms part of a structured coating system engineered for precise adhesion, controlled dry film thickness (DFT), and optimal chemical compatibility.
Our technical protocols fully cover the surface preparation, application, and inspection, ensuring long-term protection and substrate integrity under the most demanding marine conditions.
The Helix Technical Division provides documented TDS, SDS, and on-site technical support for shipyards, applicators, and coating inspectors — bridging coating science with practical marine engineering.
Every system is validated against adhesion, corrosion resistance, and UV endurance standards, reaffirming our commitment to Durability by Engineering.
Technical Information
Helix Coatings develops and manufactures fully integrated coating systems based on measurable specifications and certified performance.
Each product forms part of a structured, multi coating system engineered for precise adhesion, controlled dry film thickness (DFT), and optimal chemical compatibility.
Our technical protocols comprehensively cover the stages of surface preparation, application, and inspection, ensuring long-term protection and substrate durability under the most demanding conditions.
The Technical Support Department provides documented application guidelines, TDS, SDS, and complete assistance to shipyards, applicators, and technical consultants.
Every coating system is evaluated according to standards of adhesion, corrosion resistance, and durability — reflecting our commitment to Durability by Engineering.
Surface Preparation
Proper surface preparation is the decisive factor for achieving long-term performance and coating system durability.
Regardless of the technology or performance level of the coating, an inadequately prepared surface can lead to premature failures, reduced adhesion, and loss of protection.
Depending on the substrate type and environmental conditions, different preparation techniques are required to ensure the correct degree of cleanliness and surface profile for optimal coating adhesion.
The process must always guarantee maximum substrate cleanliness and proper roughness to achieve full surface activation.
As a general rule, the preparation process follows defined stages: cleaning, profiling, degreasing, inspection, and final surface activation.
Strict compliance with international surface preparation standards ensures the expected durability, performance, and long-term stability of the coating system.
The following sections describe the specific preparation procedures per substrate type in accordance with international ISO, SSPC, and NACE standards.
STEEL – MARINE GRADE
Surface preparation shοuld be carried out by abrasive blasting to Sa 2½ (Near White Metal Finish) to achieve complete removal of contaminants, oxides, and existing coatings.
The required surface roughness should range between 50–75 μm to ensure optimal mechanical adhesion.
After blasting, residues must be removed using clean, dry compressed air, and the appropriate primer should be applied within 4 hours to prevent flash rusting.
Standard Compliance:
ISO 8501-1 (Sa 2½) • ISO 8503-1/2 • ISO 8502-4 • ISO 8502-9 • SSPC-SP10 • NACE No.2
NON-FERROUS – METALLIC SUBSTRATES
(Aluminum, Bronze, Stainless Steel)
Metallic surfaces must be clean, dry, and free from oils, grease, and oxides.
Mechanical preparation can be achieved by grinding or light abrasive blasting to obtain a clean, uniform metal profile.
The recommended surface roughness is 50–70 μm. Apply the primer or adhesion coat within 2 hours after surface preparation to avoid oxide formation.
Standard Compliance:
ISO 8501-1 • ISO 8502-3 • ISO 8503-1/2 • ISO 8504-3
WOOD
Wood substrates must be dry, clean, and free from resins or oily residues.
Moisture content shall not exceed 15% to prevent fungal growth or degradation.
Sanding should be performed using Aluminium Oxide abrasives (Red / Brown), grit P120–P180.
Remove all dust with compressed air or a dry tack cloth.
For dense or oily timbers (e.g., teak, iroko), a final wipe down with alcohol-based cleaner is recommended before applying the first sealer or primer coat.
Standard Compliance:
ISO 1514
FIBERGLASS / GELCOAT
GRP and gelcoat surfaces must be thoroughly cleaned of waxes, silicones, and mold-release agents.
Wash with fresh water and a neutral detergent until the surface wets evenly, without beading.
Sand with abrasive paper P180–P240 until a uniform matte finish is achieved.
After cleaning, wipe the surface with a lint-free cloth and proceed immediately with the next system stage.
ENVIRONMENTAL CONDITIONS
All preparation and application work must be performed under controlled environmental conditions.
Relative humidity should not exceed 85%, and substrate temperature must remain at least 3°C above the dew point.
Avoid working under direct sunlight, condensation, or strong airflow.
Standard Compliance:
ISO 8502-4 • ISO 8502-9
🔹 All procedures described above require full compliance with the relevant ISO, SSPC, and NACE international standards to ensure the specified adhesion, durability, and performance of the complete coating system.