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Showerseal: Clear Deep Penetrative Hydrophobic Sealer
Showerseal is a high-pH, clear siloxane/silane penetrating sealer that forms a water-repellent barrier inside porous substrates without changing appearance. Ideal for stopping leaks in tiled showers, decks, and other wet areas, it withstands high pH conditions common in concrete and mortar, allowing substrates to 'breathe' by permitting vapor diffusion while blocking water ingress.
Core Features & Specifications
- Deep penetration into porous substrates for effective waterproofing
- Hydrophobic barrier prevents water ingress while allowing vapor transmission
- High pH tolerance suitable for new concrete, sand/cement beds, and lime-based mortars
- Clear, no or low gloss finish maintains original surface appearance
- Rapid drying and easy to recoat if needed
- Economical and easy application by brush, roller, or spray
Why Choose Showerseal?
- Stops leaks in tiled showers without tile removal or resurfacing
- Protects exterior concrete, render, brick, sandstone, and porous pavers
- Reduces efflorescence (white salt spotting)
- Allows substrates to breathe, preventing trapped moisture issues
- Clear finish maintains aesthetic integrity
- Suitable for both new construction and remedial applications
Best Practices: Do's & Don'ts
Do
- Apply only on structurally sound, stable, dry, and clean surfaces
- Perform test areas to check penetration and effect, especially on low-density or friable surfaces
- Allow at least 28 days cure time on new concrete before application
- Protect coating from rain and inclement weather until fully cured
Don't
- Don’t use on cracks or voids; product does not bridge or fill them
- Don’t apply on wet or damp surfaces or substrates with continual moisture
- Don’t use on low density, sandy, or friable substrates without testing
- Don’t allow product to contact glazed glass surfaces; remove immediately if contact occurs
Applications in Practice: Trade Scenarios
For Tilers & Waterproofers: Leaking Shower Recesses
Leaking tiled showers can cause costly damage if tiles are lifted or waterproof membranes fail. Showerseal offers a non-invasive solution by penetrating grout and tile bed, creating a water-repellent barrier without altering appearance or requiring removal of tiles.
Best Practice: Apply multiple coats to ensure substrate saturation and allow full cure before shower use.
For Builders & Concrete Contractors: Protecting Porous External Surfaces
Exterior concrete, brick, and sandstone are vulnerable to water ingress causing deterioration and efflorescence. Showerseal penetrates and protects these surfaces by making them hydrophobic while allowing vapor permeability.
Best Practice: Ensure substrate is dry and clean, and apply evenly from top to bottom for thorough saturation.
Performance Comparison: Showerseal vs. Conventional Sealers
| Metric | Showerseal | Conventional Sealers | Advantage |
|---|---|---|---|
| Penetration Depth | Deep siloxane/silane penetration | Surface film or coating only | Long-lasting internal barrier, no surface film |
| Appearance | Clear, no or low gloss finish | Often glossy or alters appearance | Maintains original surface aesthetics |
| Durability | Resists water ingress, high pH tolerant | May degrade with weather or alkalis | More durable in harsh conditions |
| Vapor Permeability | Allows substrate to breathe | Seals vapor, causing potential damage | Prevents trapped moisture damage |
Frequently Asked Questions
Can Showerseal be applied without removing tiles?
Yes. Showerseal penetrates grout and tile beds to waterproof without the need to remove tiles.
Is Showerseal suitable for exterior concrete surfaces?
Yes, Showerseal protects exterior porous concrete, brick, and sandstone while allowing vapor permeability.
How long does Showerseal take to cure?
It dries quickly and usually cures fully within 24 to 48 hours depending on temperature and substrate porosity.
Will Showerseal alter the appearance of surfaces?
No. Showerseal leaves a clear, low or no-gloss finish maintaining the original surface appearance.
Is Showerseal suitable for waterproofing cracks?
No. Showerseal does not fill or bridge cracks and should be applied only on stable, sound substrates.
Applications & Benefits
| Application | Key Benefit | Primary Trades |
|---|---|---|
| Leaking shower recess waterproofing without tile removal | Stops water ingress while maintaining tile appearance | Tilers, Waterproofers |
| Protecting porous exterior concrete, brick, and sandstone | Provides durable water repellency while allowing vapor transmission | Builders, Concrete Contractors |
| Waterproofing grout and mortar beds | Reduces efflorescence and water damage | Tilers, Builders |
How to Apply Showerseal Clear Penetrative Sealer
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Prepare the Surface
Ensure surfaces are clean, dry, and free from contaminants. Remove loose particles and allow new concrete to cure for at least 28 days.
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Apply the Sealer
Apply by brush, roller, or spray evenly and liberally, ensuring penetration. For porous substrates, multiple coats may be required.
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Allow to Dry and Cure
Allow drying time of approximately 2 hours between coats and full cure of 24 to 48 hours before exposure to water.
Limitations & Safety
Product Limitations
- Not suitable for filling cracks or voids; only waterproofs sound surfaces.
- Do not apply to damp or wet surfaces or substrates with continuous moisture.
- Not for use on glazed or non-porous surfaces.
- Protect from rain until fully cured.
Safety & Handling
- Use personal protective equipment including gloves and eye protection.
- Ensure good ventilation during application.
- In case of eye contact, flush with water and seek medical advice.
- Keep out of reach of children.
Adhesion & Surface Preparation Guide
Concrete, Sand/Cement, Brick & Sandstone
Surfaces must be dry, clean, free of loose particles, oil, and curing compounds. Allow new concrete to cure at least 28 days before application.
Tile Grout and Tile Bed
Ensure grout and bed are sound and clean. Remove contaminants like soap, grease, or mold prior to application.
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