Limestone Sealer Cream Breathable Waterproof | Professional Stone Treatment 25lt

Product: MSP BOND Dryseal — Limestone Waterproofing Cream 25lt

Manufacturer: Carbusonic

Protect your limestone the professional way. MSP BOND Dryseal is a premium, thixotropic cream designed specifically to deliver deep, one-coat, water-repellent protection to absorbent limestone. Perfect for façades, architectural stonework and restoration projects, it penetrates deeply into the pores of the stone and cures into a silicone polymer that blocks liquid water while leaving the limestone breathable so walls dry naturally without trapping moisture.

Why MSP BOND Dryseal for Limestone?

Tailored for limestone — formulated to bond with the carbonate structure of absorbent limestone.

One-coat application — thixotropic cream achieves full loadings in a single working operation.

Deep penetration — active siloxane chemistry soaks into the stone (typically 30 minutes → several hours depending on porosity).

Breathable finish — treated limestone remains vapour-permeable so the structure can ‘breathe’.

Compatible with slightly damp stone — works where many liquid repellents cannot.

Alkali resistant — safe for cementitious and carbonate environments.

Low environmental impact — aqueous formulation with good coating properties.

Rapid rain resistance — normally resistant to rain within one hour; full cure up to two weeks depending on conditions.

Coverage & Longevity

This professional limestone sealer cream offers excellent coverage and long-lasting protection. One 25 litre container typically covers 90 m², depending on stone porosity and surface condition. When applied correctly, protection can last up to years, reducing the need for frequent reapplication.

Key Benefits

Excellent penetration for long-lasting protection against rain and pollutants.

Reduces frost and salt damage common in porous limestone.

Keeps limestone looking cleaner for longer; lowers maintenance costs.

Simple to apply by brush, lambswool roller or coarse (airless) spray.

Ideal for conservation, restoration and new-build limestone surfaces.

Coverage & Performance

Pack: 3 Litre bucket (this listing).

Coverage: up to 15 m² per 3 L tub (approx.) depending on stone porosity — always test a small area first.

Application rate: up to 0.3 L/m² may be applied in one operation on absorbent stone.

Rain resistance: typically achieved within 1 hour.

Full cure: up to 2 weeks (climatic dependent).

Suitable Uses

Absorbent limestone façades, cladding, lintels, sills, memorials, external walls and decorative stonework.

Not suitable for very dense or non-absorbent stone (e.g., polished marble or dense engineered stone).

Preparation & Application

Preparation

Repair cracks, open joints or other defects before treatment.

Remove dirt, efflorescence, algae or moss using a suitable cleaning method — cleaning opens pores for better absorption.

For heavy biological fouling consider a masonry fungicide or moss/algae cleaner before treatment.

Ensure tools and equipment are clean and dry before use.

Application methods

Brush / lambswool roller: best for small areas and around stone details. Apply liberally to saturate the limestone — at least one full, generous coat; a second application is possible but usually unnecessary.

Airless / coarse spray: recommended for large façades. Start at the highest point and work side-to-side allowing a 15–30 cm run-down for even penetration. Flood-coating twice (wet-on-wet) gives optimal results on highly absorbent limestone.

Aftercare

Keep treated stone free from rain for at least 24 hours for best curing conditions.

Clean tools after use with water and/or white spirit. Tools may be wrapped in plastic for short breaks.

Limitations & Precautions

Performance depends on absorption — treat only absorbent limestone.

High concentrations of soluble salts (chlorides, nitrates, sulphates) may cause damage that water-repellents alone cannot prevent — a salt analysis may be required for heavily contaminated stone.

When spraying, protect windows, painted/varnished surfaces and plants with polythene sheeting.

Avoid application in rain, frost, or when surface/air temperature is below 5°C or above 30°C.

Keep out of reach of children; use suitable PPE (gloves, eyewear) and follow recommended safety guidance.

What’s in the Box

1 × MSP BOND Dryseal — 25lt, sealed and labelled (Carbusonic).

Basic product leaflet with application notes.

Option to request full Technical Data Sheet (TDS) and Safety Data Sheet (SDS) by message.

Ordering & Support

Ready to dispatch — add to cart now. Need a larger quantity or trade pricing? Message us for bulk packs and contractor rates.

Not sure it’s right for your limestone? Order the sample product or ask for technical advice — we’ll provide guidance and the TDS to ensure the correct selection and application.