Würth 1C Etch Primer
Würth 1C Etch Primer
24 in stock
Key Features
- Acid-based 1-component primer designed for sanded-through areas and paint buildup.
- Can be applied wet-on-wet without sanding, saving time and effort.
- Provides excellent corrosion protection on steel, aluminium, galvanised steel, and reinforced plastics.
- Fast-drying with good coverage, creating a reliable base for all common topcoat systems.
- Easy aerosol application for consistent film build (30–50 µm in 2–3 passes).
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Description
High=Performance Primer for Spot Repairs
Würth 1C Etch is a synthetic resin-based primer formulated to provide strong adhesion and corrosion protection in spot repair situations, particularly on sanded-through areas, bare metal, and paint buildup. It is compatible with steel, zinc-plated steel, aluminium, polyester, and glass-fibre reinforced plastics, making it highly versatile for automotive and industrial applications.
Time-Saving Wet-on-Wet Application
One of the key advantages of this primer is its ability to be painted over wet-on-wet. This eliminates the need for sanding between coats, significantly reducing process time while still ensuring reliable adhesion for subsequent paint layers.
Durability and Coverage
The primer delivers excellent corrosion protection with uniform film build. With a coating thickness of up to 50 µm achieved in 2–3 spray passes, it provides solid coverage and quick drying, ensuring efficient workflows in professional bodyshops and repair facilities.
Application Limitations
The product should not be used in conjunction with polyester or epoxy (EP) products, as chemical incompatibility may affect adhesion and finish quality. It can, however, be painted over with all conventional 1K, 2K, and water-based topcoat systems.
Practical Workshop Use
Supplied in a convenient aerosol format, the primer ensures easy application, with consistent spray patterns at a working distance of 20–30 cm. After use, the can should be inverted and sprayed until the valve is clear to maintain nozzle function.
More Information
Application Instructions
- Ensure the surface is clean, dry, and free from grease.
- Sand the surface area to provide a proper key.
- Shake the aerosol can vigorously for at least 2 minutes before use.
- Perform a test spray to check spray pattern and flow.
- Apply 2-3 spray passes (30–50 µm total thickness) at a spraying distance of 20–30 cm.
- Allow an intermediate flash-off time of 5 minutes between coats.
- Drying time at 20°C is 20-60 minutes, depending on coat thickness.
- Once dry, paint over directly with all common topcoat systems.
Usage Notes
- Do not apply over polyester or epoxy (EP) products.
- After use, invert the can and spray until the valve is empty to prevent clogging.
- Apply only in well-ventilated areas.
Specifications
Chemical Basis
Synthetic resin
Contents
400 ml
Colour
Medium grey
Yield (Area Coverage)
Approx. 1 m² per can
Coating Thickness
Up to 50 µm (in 2–3 spray passes)
Spraying Distance
20–30 cm
Drying Time (at 20°C)
20–60 minutes (depending on coat thickness)
Intermediate Flash-Off Time
5 minutes between coats
Processing Temperature
20 °C
Density
1.07 g/cm³ (at 20°C)
VOC Concentration (CH)
670 g/l
Solids Content
23.6 %
Shelf Life from Production
15 months (stored at 10–25°C)