Universal Polyester Filler
Multi-purpose 2K polyester filler for dents and surface defects on steel, aluminium, galvanised steel and fibreglass; non-sagging, fast-drying and easy to sand.
Industrial Chemical SolutionsPaint systems for automotive refinishing and industrial surfaces
Removes grease, silicone, wax, tar and sanding dust before painting, priming and filling; cuts the risk of silicone craters (fisheyes) for more reliable adhesion.
Packaging
1 L · 5 L
ZN-530 Surface Cleaning Thinner is a professional degreasing and silicone-removing solvent developed to clean surfaces chemically before paint, primer and filler are applied. It dissolves and removes residues of grease, silicone, wax and tar that are not always visible to the eye, as well as fingerprints and sanding dust. It makes surface cleaning – one of the most critical steps in a successful paint job – consistent and reliable.
Silicone and grease residues prevent the paint film from wetting the surface, causing cratering, i.e. the fisheye defects commonly referred to as ‘silicone craters’. By removing these contaminants effectively, ZN-530 minimises this risk and lays the foundation for sound adhesion of the next coat to the substrate. Its balanced evaporation rate allows enough contact time to dissolve dirt, while flashing off without leaving residues on the surface.
For best results, the two-cloth method is used: the surface is wiped with a clean cloth moistened with ZN-530 and, before the solvent evaporates, the dissolved dirt is picked up with a second clean, dry cloth. The product is used before applying fillers – ZN-110 Universal Polyester Filler in particular – the ZN-210 and ZN-220 primers, and basecoat. It is also effective for cleaning bare metal surfaces exposed with ZN-620 Paint Stripper.
Values are typical at 20 °C and 65% relative humidity. Please review the product's current Technical Data Sheet (TDS) before application.
| Type | Degreasing and silicone-removing solvent blend |
|---|---|
| Usage | Ready to use; applied undiluted |
| Evaporation rate | Balanced; allows enough contact time to dissolve dirt |
| Compatible systems | For use before all Zenova filler, primer and paint systems |
| Application temperature range | 15–25 °C; do not apply to hot surfaces |
| Application method | Two-cloth method: wipe on with a wet cloth, wipe off with a dry cloth before it evaporates |
| Application tool | Clean, lint-free cloth or solvent-resistant spray bottle |
| Appearance | Clear, colourless liquid |
| Flammability | Flammable liquid and vapour; see the Safety Data Sheet (SDS) for details |
| Packaging | 1 L, 5 L |
Our technical team will send the Technical Data Sheet (TDS) and Safety Data Sheet (SDS) you request by email.
Drying times vary with temperature, humidity, film thickness and air circulation. Consult our technical team about special conditions.
The recommended application sequence for a professional result.
First wash the surface with water and a suitable detergent to remove mud, dust and water-soluble dirt, then allow it to dry completely.
Thoroughly moisten a clean, lint-free cloth with ZN-530 and wipe the surface in one direction, working in sections of about half a square metre.
Before the solvent evaporates, pick up the dissolved dirt with a second clean, dry cloth, wiping in the same direction. If the solvent is allowed to evaporate, the dirt can redeposit on the surface.
Repeat the process before and after sanding, and before each application of filler, primer and paint; change soiled cloths frequently.
Allow the solvent to flash off completely before the next application, and do not touch the cleaned surface with bare hands.
Zenova products tested in the same system as this product, which give the best results together with it.
Multi-purpose 2K polyester filler for dents and surface defects on steel, aluminium, galvanised steel and fibreglass; non-sagging, fast-drying and easy to sand.

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Paint defects guide: the causes, prevention and repair of nine defects, including orange peel, cratering, runs, pinholes and solvent popping.
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Read articleA practical technical guide to preparing galvanised steel and aluminium: oxide layers, galvanic corrosion, correct sanding, and choosing filler and primer.
Read articleAdd the product to your quote list or contact our sales team directly, and we will prepare a quote for the pack size and quantity you need.