2K
FillerZN-170
Galva Filler
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.
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Filler · ZN-160
Aluminium 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 · Two-component
- Steel panel
- Aluminium
- Existing paintwork
Packaging
1 kg · 2 kg
Overview
What is Aluminium Filler?
ZN-160 Aluminium Filler is a two-component polyester filler loaded with pure aluminium powder. The aluminium content gives the filler high thermal conductivity and heat resistance. As a result, on metal parts subject to marked temperature changes and expansion – such as bonnets, roofs and large panels exposed to direct sunlight – it provides a more stable and longer-lasting repair than standard fillers.
The aluminium powder distributes heat evenly through the filler mass, reducing local heating and the resulting stresses. The metallic filling brings the filler's thermal expansion behaviour closer to that of the sheet-metal substrate, lowering the risk of cracking and edge separation. Its flexible formula withstands vibration; the filler spreads easily and sands evenly. Its silver-grey colour makes the treated area easy to distinguish from the substrate.
ZN-160 is used as the main filler on metal panels exposed to heat and expansion; where necessary, final levelling can be done with a thin coat of ZN-130 Soft Finishing Filler. On zinc-coated panels, ZN-170 Galva Filler should be used instead. After sanding, the surface is primed with ZN-250 Joker Multi-Purpose Primer, which also adheres to aluminium and galvanised substrates, or with ZN-210 4+1 Acrylic Primer Filler.
Key features
- Filled with pure aluminium powder for high thermal conductivity
- High resistance to heat and thermal expansion
- Low risk of cracking on hot panels such as bonnets and roofs
- Flexible, vibration-resistant structure
- Excellent compatibility and strong adhesion on metal surfaces
Technical specifications
Technical data
Values are typical at 20 °C and 65% relative humidity. Please review the product's current Technical Data Sheet (TDS) before application.
| Components | 2K – aluminium-powder-filled polyester filler + BPO hardener paste |
|---|---|
| Mixing ratio | 100 : 2–3 (by weight); BPO hardener paste included in the pack |
| Pot life (20 °C) | 4–6 min |
| Ready to sand (20 °C) | 20–30 min |
| Ready to sand (short-wave IR) | 3–5 min |
| Recommended coat thickness | Max. 3 mm per coat |
| Recommended abrasives | P80–P120 for shaping, P180–P240 for finishing (dry) |
| Colour | Silver grey |
| Density | Approx. 1.7–1.9 g/cm³ |
| Application tool | Metal or plastic spreader |
Pack sizes
- 1 kg
- 2 kg
Colour
Silver grey
Technical documents
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.
Application
Step-by-step application
The recommended application sequence for a professional result.
- 01
Surface preparation
Remove all paint and rust and sand the metal surface with P80. On aluminium parts, use only abrasives and tools reserved for aluminium work. Clean the surface with ZN-530 Surface Cleaning Thinner.
- 02
Mixing
Mix the filler with 2–3% BPO hardener by weight by folding it in, until you obtain a uniform colour with the aluminium powder evenly distributed.
- 03
Application
Press the first coat on thinly, then build up the fill at no more than 3 mm per coat. Use the mix within 4–6 min.
- 04
Drying
Ready to sand after 20–30 min at 20 °C; with short-wave IR this drops to 3–5 min.
- 05
Sanding
Shape with P80–P120 and finish with P180–P240. Dry sand and remove all dust.
- 06
Priming
Prime the filled area and any surrounding bare metal with ZN-250 Joker Multi-Purpose Primer. In repairs where only filler and painted surfaces remain, ZN-210 4+1 Acrylic Primer Filler can also be used.
Storage and safety
- Store in the closed original packaging at 5–25 °C in a dry, well-ventilated place.
- Shelf life in unopened packaging is typically 12 months; close opened tins tightly after use.
- Keep away from direct sunlight, heat and naked flames. The BPO hardener paste contains organic peroxide: protect it from heat and never dip a spreader contaminated with hardener into the filler tin.
- Work in a well-ventilated area when mixing and sanding; wear gloves, safety goggles and at least an FFP2 dust mask. Always consult the product's Safety Data Sheet (SDS).
System compatibility
Products used together
Zenova products tested in the same system as this product, which give the best results together with it.
- 2KFillerZN-130
Soft Finishing Filler
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.
View product - 2KPrimerZN-250
Joker Multi-Purpose Primer
Hybrid 2K primer for use wet-on-wet or as a sandable primer filler. Adheres to aluminium, galvanised steel, factory coatings and existing paintwork.
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2KPrimerZN-2104+1 Acrylic Primer Filler
High-build 2K acrylic primer filler: covers filled areas, does not sag, sands easily and creates a smooth, isolating base for the topcoat.
View product
Application systems that include this product
Frequently asked
Questions about Aluminium Filler
Knowledge Centre
Related articles
Technical Knowledge
5 min read
Correct Surface Preparation on Galvanised Steel and Aluminium
A practical technical guide to preparing galvanised steel and aluminium: oxide layers, galvanic corrosion, correct sanding, and choosing filler and primer.
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