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SURFACE PREPARATION GUIDE

For onshore and offshore pipelines, welded joints, fittings and all civil and marine structures…

DENSO SURFACE PREPARATION GUIDE

Dry abrasive blast cleaning is not always desirable or possible due to environmental or access restrictions. For 90 years Denso has been a world
leader in providing innovative and permanent corrosion prevention solutions over hand tool cleaned steel surfaces whilst reducing applied coating
costs and meeting the most stringent health & safety requirements.

The tables below outline the recommended surface preparation methods for steel surfaces; steel, timber and concrete marine jetty piles; and Denso sealing systems for concrete and asphalt. For ease of use, the icons for these methods are displayed on our product pages. If you would like further information on surface preparation please contact us and one of our representatives will be in touch to help you with your query.

IconsDenso SystemSurface Preparation Method for SteelAlternative Method
surface prep wire brush - Denso
Hand Tool Cleaning
All Denso Petrolatum systemsMinimal surface preparation, chipping
hammers, hand wire brushing
surface prep powertool - Denso
Power Tool Cleaning
All Denso Bitumen, Butyl, Viscoelastic
systems & ST Epoxy
Hand or power tool to St2 / St3 (ISO 8501-1)
or high pressure water jetting (ISO 8501-4)
SSPC-SP2 Hand Tool Cleaning
SSPC-SP3 Power Tool Cleaning
surface prep abrasiveblastcleaning - Denso
Dry Abrasive Blast Cleaning
All Denso Glass-Flake Polyester,
Protal Epoxies & Archco Epoxy Vinyl-esters
Dry Abrasive Blast Sa2 1⁄2 (ISO 8501-1) with an
angular surface profile of 50 to 125 microns
SSPC SP-10, NACE No. 2

The above are indicative only. Refer to Instructions for Use and Project Specifications Note: ISO standards are not exact equivalents to NACE / SSPC.

IconsSeaShield SystemSurface Preparation Method for Steel, Timber and Concrete Marine Jetty Piles
surface prep abrasiveblastcleaningnonessential - Denso
Dry Abrasive Blast Cleaning
Not Essential
SeaShield 70, SeaShield 80, SeaShield 90, SeaShield 100 SeaShield 400, SeaShield 500, SeaShield 2000FDa) Remove marine growth, loose rust, paint and foreign matter by hand and / or power tools. High pressure water jetting may also be selected for use. b) Remove weld spatter on steel piles, and all sharp points and edges on all jetty piles.

THE ABOVE IS INDICATIVE ONLY. REFER TO INSTRUCTIONS FOR USE AND PROJECT SPECIFICATIONS.

surface prep chloride - Denso 

REMOVAL OF CHLORIDE AND OTHER CONTAMINANTS

We recommend the use of HoldTight® 102 on freshly cleaned surfaces to remove all traces of chloride and other contaminants and prevent flash rusting for 48 hours prior to applying our Denso glass flake polyester, Archco epoxy vinyl-esters, Denso ST Epoxy and Protal epoxy coating systems.

IconsDenso Sealing SystemSurface Preparation Method for Concrete and Asphalt
surface prep wire brush - Denso
Hand Tool Cleaning
Densostrip and Denso Highway Maintenance ProductsMinimal surface preparation, surfaces must be free of loose debris. Refer to the product application instructions for full surface preparation methods.

THE ABOVE IS INDICATIVE ONLY. REFER TO INSTRUCTIONS FOR USE AND PROJECT SPECIFICATIONS.