Description
Hempel UNDERWATER Primer 750ml GREY
An underwater primer with excellent waterproofing properties, for use on all substrates. Also as a tiecoat that can be used between antifouling and hull primer systems, and between and existing antifouling and a new antifouling. For use below the waterline.
Use as part of a single component system below the waterline, including keels; and as a tiecoat before antifouling. Can be applied directly onto the hull or a primed surface, and between an existing antifouling and a new antifouling. Fast-drying with excellent waterproofing
Recommended use:
As a maintenance primer for antifouling coatings on wooden boats.
Application Methods :
| Temp | Touch Dry | Recoat (min/max) | Thinners / Tool Cleaner | Coverage |
| 10°c | 4 hrs | 6 hrs - indefinte | Thinners No: 1 (brush) | 7.8 m2/ltr |
| 20°c | 2 hrs | 3 hrs - indefinite | Thinners No 1 (spray) | 7.8 m2/ltr |
Preparation & Application
Ensure all surfaces are clean, oil free and dry. Cleaning with appropriate cleaner and rinse with fresh water and allow to dry.
Previously Coated Surfaces
Abrade to remove loose matter and provide a suitable key. Wash surface with fresh water and allow to dry. Apply underwater primer before over coating as required.
Previously Un-coated Surfaces
Metal or Wood
Seal surface with underwater primer thinned 20% with thinners 811. Apply 4 coats of underwater primer before applying chosen antifoul
GRP
Apply 1-2 coats underwater primer before applying chosen antifouling
DATA SHEETS
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Hempel Underwater Primer Technical Datasheet |
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Hempel Underwater Primer Safety Datasheet |
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Hempel Paint Manual |