Toupret Rock Solid Repair Filler (Mur Ex) – Exterior Deep Repair (2kg/5kg/10kg)

Toupret Rock Solid Repair Filler (Mur Ex) is a powder exterior repair filler designed for tough, durable repairs with no depth limitation. It’s ideal when you need a rock-hard finish for exterior patching and shaping work.

Suitable for a wide range of painted or unpainted exterior substrates, it offers a practical working time and is typically ready to paint in 24 hours (depending on thickness and conditions).

Key benefits

• No depth limitation – fill deep repairs without building up in thin layers.
• Sets to a rock-hard finish for durable exterior repairs.
• Ready to paint in ~24 hours (average, after complete drying).
• Working time ~30 minutes for mixing, applying, and shaping.
• Multi-surface exterior repairs including masonry and previously painted surfaces.
• Shapeable repair – designed for shaping and repairing without formwork.

Best for

• Trade: exterior patch repairs on masonry, breeze blocks, and previously painted exterior walls before masonry paint.
• DIY: repairing deep holes, cracks, and damaged edges outdoors before repainting.
• Shaping repairs where you want a hard, durable finish.

Why it matters

For exterior repairs, the common frustrations are shrinkage, weak edges, or slow progress. Rock Solid Repair Filler is built for demanding repairs: it can be applied with no depth limitation, shapes well, and sets to a rock-hard finish so you can get to the decorating stage without unnecessary delays.

Specifications (verified)

Suitable surfaces

New or renovated, painted or unpainted substrates including: gypsum plaster, old painted surfaces, cement, concrete, breeze blocks, bricks, stones, glass, and glazed tiles.

Overcoating / compatibility notes

• Can be overcoated with water-based masonry paints and conventional coatings (including mineral paints).
• Do not coat directly with polyurethane paints or epoxy solvent-based paints.
• If you plan to use solvent-based polyurethane/epoxy paints, prime first with a water-based exterior paint.

What’s included

• 1 × Toupret Rock Solid Repair Filler (Mur Ex) – choose 2kg / 5kg / 10kg

How to use (general guide)

1. Prep: Ensure the surface is hard, cohesive, clean, sound, and dry. Remove loose material and dust.
2. Mix: Add powder to room-temperature water and stir until smooth (450ml water per 1kg powder).
3. Apply: Use a filling knife, blade, or trowel. Shape as needed. No depth limitation.
4. Second coat: Apply another coat as soon as the filler is hard and dry to the touch (if required).
5. Finish: Allow to dry fully before painting (typically 24 hours; depends on depth, substrate, and conditions).

Cleaning & storage

• Storage: Store sealed and away from humidity.
• Tool cleaning: Clean tools after use.

Variants: choose your size

• 2kg: small jobs, patch repairs, and touch-ups.
• 5kg: medium repairs or multiple areas on one wall.
• 10kg: larger repair work or frequent use on site.

Delivery & returns

Free shipping on all orders over £50*. 28-day returns.

Why buy from LDM Direct?

• UK stock with fast dispatch
• Trade-friendly service and support
• Click & Collect available
• Independent family-owned business
• 16 decorating stores nationwide

FAQs

Is Toupret Rock Solid Repair Filler suitable for exterior use?

Yes. It’s an exterior repair filler designed for durable repairs on a wide range of exterior substrates.

What surfaces can I use it on?

It’s suitable on new or renovated, painted or unpainted substrates including gypsum plaster, old painted surfaces, cement, concrete, breeze blocks, bricks, stones, glass, and glazed tiles.

Can I use it for deep holes and repairs?

Yes. It has no depth limitation, making it suitable for deep repairs where you want a strong, rock-hard finish.

How long do I have to work with it once mixed?

The working time is around 30 minutes, so mix only what you can apply and shape in that time.

What’s the mixing ratio?

Add 450ml of water per 1kg of powder (45%). Add powder to water and stir until smooth.

When can I apply a second coat?

You can apply a second coat as soon as the first coat is hard and dry to the touch.

When can I paint over it?

It can typically be painted after 24 hours (average, after complete drying). Drying depends on substrate, thickness, and weather conditions.

What paint types can I use over it?

It can be overcoated with water-based masonry paints and conventional coatings (including mineral paints). If using polyurethane or epoxy solvent-based paints, prime first with a water-based exterior paint.

Are there any coatings I should avoid?

Do not coat directly with polyurethane paints or epoxy solvent-based paints.

What tools do I need to apply it?

You can apply it manually using a filling knife/putty knife, blade, or trowel. For best results, prep the area first and protect nearby surfaces with masking and dust sheets.

What size should I choose: 2kg, 5kg or 10kg?

Choose 2kg for small repairs, 5kg for multiple patches or medium jobs, and 10kg for larger repair work or regular site use.

How should I store it?

Store the product in its original packaging, sealed and away from humidity.