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
From deep dents to fine skim coats, the right filler for every kind of damage.
The quality of a bodywork repair starts with the filler layer beneath the paint. The Zenova polyester filler series offers formulations individually optimised for every situation encountered in the workshop, from quickly filling deep dents to covering fine surface imperfections.
All our fillers are two-component and cure with the BPO hardener paste supplied in the pack. Thanks to their thixotropic structure, they do not sag on vertical surfaces, form a non-porous film and are easy to work without clogging the abrasive paper. Options with special resins for surfaces where adhesion is difficult, such as galvanised steel and aluminium, glass-fibre-reinforced structural fillers and lightweight products based on microsphere technology are all part of the same series.
The right choice of filler depends on the depth of the damage, the type of surface and how quickly the job needs to be done. The technical data and application steps on the product pages have been prepared to make your choice easier.
Does not sag on vertical surfaces and holds its shape even in thick layers.
A formulation that does not clog the paper noticeably shortens labour time.
Dedicated formulations for steel, galvanised steel, aluminium and GRP.
Creates a smooth, pinhole-free base that is ready for primer.
Click a product card to see its technical data, application steps and compatible products.
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.
High-strength, glass-fibre-reinforced 2K structural filler. Ideal for deep dents, tears, small holes and repairs to GRP/fibreglass parts.
2K filler reinforced with micro glass fibres, combining the strength of a fibreglass filler with a smooth, pore-free surface and much easier sanding.
Ultra-flexible, creamy 2K finishing filler for large surfaces and thin fills. Sands very easily without clogging the paper, leaving a flawless base for primer.
2K polyester filler made much lighter by microsphere technology. Adds no extra weight to large repairs, does not shrink and sands silky smooth.
2K filler combining strong filling, fine finishing and glass-fibre bridging in one hybrid formula. Enables fast repairs without a separate soft filler.
2K filler loaded with pure aluminium powder for high thermal conductivity and heat resistance. For metal parts exposed to heat and expansion, such as bonnets and roofs.
2K filler developed with special resins for maximum adhesion on galvanised and zinc-coated steel. Can also be used with confidence on aluminium and its alloys.
Quickly compare the products by component type, suitable surfaces and pack sizes.
| Product | Components | Suitable surfaces | Packaging | Details |
|---|---|---|---|---|
| ZN-110Universal Polyester Filler | 2K | Steel panel, Galvanised steel, Aluminium, GRP / Fibreglass, Existing paintwork | 1 kg · 2 kg | View |
| ZN-120Fibreglass Filler | 2K | Steel panel, Aluminium, GRP / Fibreglass, Existing paintwork | 1 kg · 2 kg | View |
| ZN-125Micro Fibreglass Filler | 2K | Steel panel, Aluminium, GRP / Fibreglass, Existing paintwork | 1 kg · 2 kg | View |
| ZN-130Soft Finishing Filler | 2K | Steel panel, Aluminium, GRP / Fibreglass, Existing paintwork | 1 kg · 2 kg | View |
| ZN-140Lightweight Filler | 2K | Steel panel, Aluminium, GRP / Fibreglass, Existing paintwork | 1 kg · 2 kg | View |
| ZN-1503-in-1 Filler | 2K | Steel panel, Aluminium, GRP / Fibreglass, Existing paintwork | 1 kg · 2 kg | View |
| ZN-160Aluminium Filler | 2K | Steel panel, Aluminium, Existing paintwork | 1 kg · 2 kg | View |
| ZN-170Galva Filler | 2K | Galvanised steel, Steel panel, Aluminium, Existing paintwork | 1 kg · 2 kg | View |
Polyester fillers consist of an unsaturated polyester resin, a reactive monomer (usually styrene) and mineral fillers. When the BPO (benzoyl peroxide) hardener paste supplied in the pack is mixed in, free-radical polymerisation begins and the filler sets within a few minutes.
BPO hardener is an organic peroxide: keep it away from heat, avoid skin contact and wear gloves. Environment, health and regulatory guide
Mineral fillers such as talc determine sandability and filling power. Glass-fibre reinforcement increases structural strength, while microspheres reduce weight.
2–3% BPO by weight is recommended. Too much leads to peroxide staining and brittleness; too little leaves a surface that stays soft and clogs the abrasive paper.
Curing releases heat. Applying thin layers instead of a single thick one reduces internal stress, shrinkage and pore formation.
In the cold the reaction slows down; in the heat pot life becomes shorter. Technical values are given for 20 °C; the filler and surface temperature must not fall below 10 °C.
Answers to the most frequently asked questions about this product group.
Talk to our team about product selection, application and pricing. We will quickly prepare the right system and quote for your needs.