SAS Spray High Build Etch Primer 500ml – dual-action high-build and acid etch primer for superior adhesion to aluminium, zinc and difficult metals.

SAS Spray High Build Etch Primer – Acid Etch & Filler Primer – 500ml

£7.95

SAS etch primer is a high build acid etch primer spray designed to deliver strong adhesion and surface filling in a single application.

Dual-action formulation – Combines high build primer and acid etch for improved efficiency.
Excellent metal adhesion – Bonds effectively to aluminium, brass, copper, and zinc-coated steel.
High solids content – Contains twice the paint solids of many conventional primers for superior build.
Anti-sag performance – Allows thicker coats without runs, improving finish quality.
Easy sanding finish – Dries to a smooth matt surface with excellent sanding properties.

Order today for reliable metal preparation and long-lasting paint adhesion.

Brand:S.A.S

Description

S.A.S Spray High Build Etch Primer – High Build Etch & Filler Primer – 500ml

SAS Spray High Build Etch Primer is a two-in-one primer and acid etch formulated for demanding metal preparation. First, it chemically etches metal surfaces for superior adhesion. Then, it builds film thickness to fill minor imperfections and provide a sandable matt finish. This makes sas etch primer ideal for automotive bodywork, fabrication, and metal repair tasks. For related products, see our Paints & Primers collection.

Key Features

Dual-action formula – Combines acid etch and high build primer in a single aerosol for faster prep and fewer products to apply.
High solids content – Contains roughly twice the paint solids of many conventional primers, giving better build per coat.
Improved adhesion – Bonds effectively to difficult substrates such as aluminium, brass, copper and zinc-coated steel (Zintec).
Excellent anti-sag – Enables thicker, high coat depths without runs, so you can rely on consistent coverage.
Easy to sand – Dries to a smooth matt finish that sands readily to accept topcoat.

Why Use SAS Spray High Build Etch Primer?

Faster workflow – By etching and building in one step you reduce labour and product changeovers.
Trust on non-ferrous metals – Specifically formulated for aluminium and its alloys where conventional primers struggle.
Better finish quality – High solids and anti-sag properties produce a uniform base for paint.
Versatile – Also suitable for many rigid plastics, extending its usefulness beyond metalwork.

Application and Instructions

Shake the can vigorously for at least 2 minutes after the mixing ball moves free. Clean the surface, remove grease, oil and loose corrosion, and mask adjacent areas. Apply thin, even coats holding the can 20–30 cm from the surface. Build to the required film thickness, allowing flash-off between coats. Prime can be sanded once fully dry with fine abrasive. This product functions as an acid etch primer and high-build filler; therefore, follow the topcoat manufacturer’s overcoat times and recommendations. For matching topcoats and additional metal primers, visit our Paints & Primers section.

Item/Size	Quantity
SAS Spray High Build Etch Primer – 500ml aerosol	1 x 500ml can

Read less

Technical Specifications

Specification	Value
Brand	SAS
Product	Spray High Build Etch Primer (dual-action)
Size	500ml aerosol
Type	Acid etch & high-build primer
Solids	High solids (approx. ×2 vs conventional primers)
Substrate compatibility	Aluminium, copper, brass, Zintec, steel, many rigid plastics
Finish	Matt (sanding grade)