Gen Yacht / Underwater Primers and Barrier Systems / Nº 424 Underwater Sealer
UNDERWATER PRIMERS AND BARRIER SYSTEMS · INTERMEDIATE / SEALER COAT
424
Underwater Sealer
Sealer · Transition coat · Over old antifouling
Sealer coat that isolates the surface before antifouling and improves adhesion, increasing system performance and durability.
An intermediate / sealer coat used before antifouling to prepare the surface and improve adhesion. It isolates the surface, increasing system performance and durability, and provides a safe transition between old antifouling of unknown type and the new system.
Technical Data
BINDER
Modified resin
COMPONENTS
Single-component (1K)
POSITION IN SYSTEM
Intermediate / sealer coat
THEORETICAL COVERAGE
8 m²/kg (single coat)
APPLICATION METHOD
Brush, roller, spray
COMPATIBLE PRODUCTS
425, 427, 428
COVERAGE
—
COVERAGE
—
COVERAGE
—
COVERAGE
—
COVERAGE
—
COVERAGE
—
DRYING
Touch dry 3 h · Overcoat after 8 h (20 °C, 65% RH)
PACKAGING
—
COLOUR
Red, Silver, Grey
TECHNICAL DOCUMENTS
Use and Application
AREAS OF USE
In underwater paint systems; as a transition coat before antifouling; on properly prepared metal, wooden and GRP surfaces.
SURFACE PREPARATION AND APPLICATION
Wash the surface, scrape off loose paint, abrade lightly and allow to dry. Stir thoroughly and apply by brush, roller or spray. Air and surface temperature must be above +5 °C and relative humidity below 85%; surface temperature must be at least 3 °C above the dew point.
SUITABLE BOAT TYPES
Technical data are average values at 20 °C and 65% relative humidity. Coverage varies with surface roughness, application method and film thickness. Consult the Gen Boya technical team for a paint schedule tailored to your boat.
KEY FEATURES
— Isolates old antifouling
— Strong adhesion for antifouling
— Three colours
— Quick overcoating
SYSTEM RECOMMENDATION
SUBSEQUENT COATS
Gen Antifouling (425, 427, 428)