Etalon 5700GP Fiberglass Body Filler Green, 3kg

High-Strength Fiberglass Filler for Demanding Repairs

The Etalon 5700GP Fiberglass Body Filler is designed for repair work that requires more filling capability and reinforcement than a conventional universal or finishing filler.

Its polyester formulation contains short glass fibres, helping the filler bridge and rebuild damaged areas such as:

• Deep dents
• Cracks
• Small holes
• Surface cavities
• Local damaged sections
• Irregular or recessed areas
• Areas requiring additional reinforcement before final finishing

This makes the 5700GP particularly useful during yacht refits, boat repairs and professional marine refinishing.

Reinforced with Short Glass Fibres

The key feature of Etalon 5700GP is its short glass-fibre reinforcement.

These fibres improve the filler’s ability to bridge damaged areas while providing a strong and stable repair layer.

The short-fibre formulation offers several practical benefits:

• Excellent filling performance
• Improved bridging of small gaps
• Additional reinforcement
• Easier shaping
• Smoother surface than coarse long-fibre fillers
• Better preparation for subsequent finishing stages

This makes it a useful intermediate step between the initial repair and the final finishing filler or primer.

Ideal for Fiberglass & GRP Yacht Repairs

Fiberglass and GRP are widely used throughout modern yacht and boat construction.

Local surface damage can include:

• Cracks
• Small holes
• Chips
• Deep surface defects
• Uneven previous repairs
• Damaged cosmetic areas

Etalon 5700GP is suitable for correctly prepared GRP / fiberglass surfaces, making it particularly relevant for yacht maintenance and refit work.

Typical applications include:

• Hull cosmetic repairs
• Superstructure repairs
• GRP panels
• Fiberglass components
• Local repair areas
• Surface rebuilding before final finishing

For major structural laminate damage, the correct fiberglass reinforcement and resin system must be used first. Etalon 5700GP is a filling and surface-repair compound, not a replacement for structural laminate repair.

Excellent Filling & Bridging Properties

Etalon highlights the 5700GP for its strong filling properties.

It can be used where a fine finishing filler would be too light for the repair.

This makes it suitable for:

• Deeper imperfections
• Small openings
• Damaged edges
• Surface reconstruction
• Shaping repaired sections
• Initial filling before fine finishing

After the surface has been shaped and sanded, a finer finishing filler can be applied if required to achieve a paint-ready finish.

Suitable for Aluminium

The Etalon 5700GP system offers good adhesion to properly prepared aluminium.

This is particularly useful for yacht applications involving:

• Aluminium panels
• Aluminium yacht components
• Brackets
• Covers
• Metal housings
• Local repair sections
• Aluminium structures

The aluminium surface must be clean, mechanically prepared and thoroughly degreased before application.

Suitable for Steel & Iron

Etalon also specifies good adhesion to:

• Iron
• Steel
• Ferrous metal surfaces

This makes the filler useful for appropriately prepared metal components found throughout yacht and marine maintenance projects.

All corrosion, loose material and contamination should be completely removed before the filler is applied.

Suitable for Zinc & Galvanized Surfaces

The 5700GP is also suitable for properly prepared:

• Zinc
• Galvanized steel
• Galvanized metal surfaces

This gives technicians greater flexibility when dealing with mixed substrates during maintenance and refit projects.

Ideal for Yacht & Boat Refit

A yacht refit can involve several different materials within the same project.

One repair may involve fiberglass, another aluminium and another steel.

The broad substrate compatibility of Etalon 5700GP makes it particularly practical for:

• Yacht refit yards
• Professional marine workshops
• Boat builders
• Yacht maintenance teams
• Professional painters
• Repair technicians

The large 3kg pack is especially practical for workshops and larger repair projects where a greater quantity of reinforced filler is required.

Apply in Controlled Layers

Although Etalon 5700GP has excellent filling capability, the technical instructions allow it to be applied in several controlled layers.

Building the repair progressively provides better control over:

• Shape
• Thickness
• Curing
• Surface quality
• Final sanding

Avoid applying unnecessary quantities of filler where the damaged substrate should instead be structurally repaired or replaced.

2K Polyester Technology

Etalon 5700GP is a two-component polyester filler.

Before application, the filler must be mixed with a compatible hardener.

The specified hardener ratio is approximately:

2–3% hardener

Accurate mixing is important for proper curing and predictable sanding performance.

Adding excessive hardener should be avoided, as it does not simply produce a better or stronger repair.

Fast Working & Drying Time

At approximately 20°C, Etalon specifies:

Pot Life: approximately 4–5 minutes

This means the mixed material must be applied efficiently.

Approximate standard drying time is:

20–25 minutes at 20°C

With suitable infrared drying equipment:

approximately 8–10 minutes

Actual curing time depends on temperature, repair thickness and workshop conditions.

Dry Sanding P80–P120

Once fully cured, the recommended sanding process is:

Dry sanding: P80–P120

This allows the repair to be shaped and levelled before moving to finer finishing stages.

After the 5700GP has been shaped, a suitable finishing filler can be applied if a finer surface is required before primer.

5700GP for Filling – Finishing Filler for Final Detail

Etalon 5700GP is primarily a reinforced filling product.

It is best suited to:

• Deeper damage
• Filling
• Bridging
• Rebuilding shape
• Cracks
• Small holes

A fine finishing filler is more appropriate for:

• Pinholes
• Fine scratches
• Very small surface imperfections
• Final smoothing

For a professional yacht repair, the workflow may therefore be:

5700GP Fiberglass Filler → Fine Finishing Filler → Primer → Paint System

depending on the repair and coating specification.

Why Choose Etalon 5700GP 3kg?

For larger repair projects, a conventional fine filler may not provide sufficient strength or filling ability.

Etalon 5700GP combines:

• Fiberglass reinforcement
• Excellent filling properties
• Good bridging performance
• Compatibility with several common substrates
• Fast professional curing
• Marine application suitability
• Practical 3kg professional packaging

It is especially useful for refit yards and workshops carrying out multiple or larger yacht repairs.

Key Benefits

• Professional 2K polyester body filler
• Reinforced with short glass fibres
• Excellent filling properties
• Strong bridging capability
• Designed for deeper repairs
• Suitable for cracks
• Suitable for small holes
• Suitable for deep dents
• Useful for surface rebuilding
• Good adhesion to fiberglass / GRP
• Good adhesion to aluminium
• Good adhesion to iron and steel
• Suitable for zinc and galvanized surfaces
• Suitable for marine applications
• Short fibres help create a smoother surface
• Fast curing
• Approx. 4–5 minute pot life at 20°C
• Approx. 20–25 minute drying at 20°C
• Dry sanding P80–P120
• Professional 3kg pack
• Green colour

Recommended Yacht & Marine Applications

Ideal for:

• Yacht refit
• Boat repair
• Fiberglass repairs
• GRP repairs
• Local hull repairs
• Superstructure repairs
• Deep surface defects
• Cracks
• Small holes
• Deep dents
• Surface rebuilding
• Aluminium repairs
• Steel repairs
• Galvanized metal repairs
• Preparation before finishing filler
• Professional marine workshops

How to Use

1. Inspect the repair area and confirm that filler is appropriate for the damage.
2. Remove loose coatings, corrosion and unstable material.
3. Sand the substrate according to the repair requirements.
4. Clean and thoroughly degrease the surface.
5. Place only the required quantity of Etalon 5700GP onto a clean mixing board.
6. Add approximately 2–3% compatible hardener.
7. Mix thoroughly until the material is completely homogeneous.
8. Apply with a clean filler spreader.
9. Build deeper repairs in controlled layers where appropriate.
10. Work efficiently because pot life is approximately 4–5 minutes at 20°C.
11. Allow approximately 20–25 minutes at 20°C for curing.
12. Dry sand with P80–P120.
13. Apply an appropriate finishing filler where a finer surface is required.
14. Continue with the specified primer and coating system.

Always follow the latest Etalon Technical Data Sheet for professional application.

Important Repair Note

Etalon 5700GP can bridge small damaged areas, but it should not be used to disguise active corrosion or replace structurally weakened material.

For Metal Repairs

• Remove all corrosion.
• Check the condition and strength of the substrate.
• Repair or replace badly weakened metal.
• Apply filler only to stable, correctly prepared surfaces.

For GRP Repairs

For major laminate cracks, delamination or structural fiberglass damage, carry out the appropriate structural laminate repair first.

The 5700GP should then be used where appropriate for rebuilding and smoothing the repair area.

Technical Specifications

Brand: Etalon
Product: 5700GP Fiberglass Body Filler
Etalon Product Code: ET5700GP-300
Product Type: Fiberglass Reinforced Body Filler
Technology: 2K Polyester
Reinforcement: Short Glass Fibres
Colour: Green
Primary Use: Filling, levelling & bridging damaged surfaces
Suitable Substrates: Iron, steel, aluminium, zinc and GRP
Marine Application: Yes
Application Temperature: From approximately 10°C
Hardener Ratio: 2–3%
Specific Weight: Approx. 1.60kg/L
Pot Life: Approx. 4–5 minutes at 20°C
Drying Time: Approx. 20–25 minutes at 20°C
IR Drying: Approx. 8–10 minutes
Application: Several controlled layers where required
Sanding: Dry only
Recommended Sanding: P80–P120
Shelf Life: Approx. 12 months under specified storage conditions
Net Weight: 3kg
Colour: Green

Professional Application Tips

For better results:

• Never apply filler over active rust.
• Thoroughly clean and degrease the substrate.
• Mix only enough material for the short working time.
• Do not use excessive hardener.
• Avoid trapping air during mixing.
• Build deeper repairs progressively.
• Allow complete curing before sanding.
• Use suitable dust extraction during sanding.
• Apply a finer filler after shaping if a premium finishing surface is required.
• Check the repair under good lighting before applying primer.

Storage & Safety

Etalon 5700GP is a professional polyester chemical product and should be used in accordance with its current Safety Data Sheet.

For safe handling:

• Wear suitable chemical-resistant gloves.
• Wear protective eyewear.
• Ensure good ventilation.
• Avoid breathing vapours.
• Use appropriate respiratory protection during sanding.
• Avoid inhaling sanding dust.
• Keep away from heat, sparks and open flames.
• Do not smoke during use.
• Keep the container securely closed.
• Store according to manufacturer recommendations.
• Keep away from children.
• Dispose of product residues according to applicable regulations.