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Use Duram S900 Clear Penetrative Sealer for: Long-lasting waterproofing of porous substrates like bricks, concrete, and pavers without altering appearance
Duram S900 Clear Penetrative Sealer is a high-performance, siloxane-based waterproofing solution designed for deep penetration into porous surfaces such as concrete, face brick, render, sandstone, and terracotta. It forms an invisible barrier beneath the surface to block water ingress while allowing the substrate to breathe. Ideal for Australian conditions, it resists high pH environments like fresh concrete, protects against efflorescence, mould, and salt attack, and helps extend the service life of masonry surfaces. Easy to apply and fast drying, Duram S900 is a trusted choice for trades needing durable, non-glossy waterproofing performance.
Key Features of Duram S900 Clear Penetrative Sealer
- Creates an invisible weatherproof barrier for porous materials
- Does not alter the surface appearance or texture
- Allows vapour diffusion for breathability
- Resistant to salt, rain, and UV exposure
- Suitable for new and existing surfaces with high pH
Technical Overview
- Chemical Properties: Siloxane, high pH compatible, clear solvent solution
- Application Temperature Range: 5°C to 30°C (41°F to 86°F)
- Service Temperature: 0°C to 50°C (32°F to 122°F)
- Drying Time: Touch dry in 2–4 hrs, full cure in 12–24 hrs
- Coverage Rate: 2–6m²/L depending on surface porosity
Trade Professional Information
- Required Tools: Brush, roller, low-pressure spray, or pour application
- Trade-Specific Tips: Apply multiple wet-on-wet coats for best absorption and effectiveness
- Common Issues and Solutions: Test on highly porous or friable surfaces before full application; cracks must be pre-repaired
Storage and Shelf Life
- Storage Requirements: Keep in a dry, cool, upright position in sealed original container
- Shelf Life Information: 12 months from production in unopened packaging
- Temperature Considerations: Store between 5°C to 25°C (41°F to 77°F)
Certifications
- Manufactured to meet Australian building and safety compliance
- Formulated for high-pH environments like fresh concrete
- Meets VOC and flammability regulations for Class 3 Dangerous Goods
Frequently Asked Questions About Duram S900 Clear Penetrative Sealer
Q: How do I apply Duram S900 correctly?
A: Duram S900 can be applied using a brush, roller, spray, or poured directly. Ensure the substrate is well saturated and apply multiple wet-on-wet coats for best penetration.
Q: How long does Duram S900 take to cure?
A: It becomes touch dry within 2–4 hours and achieves full cure within 12–24 hours, depending on surface porosity, temperature, and humidity levels.
Q: Is Duram S900 compatible with sealed or painted surfaces?
A: No, Duram S900 must only be applied to uncoated, porous surfaces. Remove any paints or sealers prior to application to ensure proper absorption and effectiveness.
Q: What if the surface is too porous or friable?
A: Extremely porous or sandy substrates may not allow adequate build-up for waterproofing. Test a small area first and consider pre-treatment or consolidation if needed.
Q: What safety measures should I take when using this product?
A: Use solvent-resistant gloves, goggles, and a respirator. Ensure proper ventilation. Product is flammable and should be kept away from ignition sources.
Use Duram S900 Clear Penetrative Sealer for:
- Weatherproofing new concrete or render in construction projects
- Preventing efflorescence and moisture damage in brickwork
- Sealing sandstone in landscaping applications
- Protecting terracotta pavers in outdoor patios
Why Use Duram S900 Clear Penetrative Sealer:
- Maintains the natural look of surfaces while sealing against water
- Reduces long-term maintenance and deterioration
- Quick-drying and easy to apply on-site
- Protects against mould, corrosion, and salt damage
How to apply Duram S900 Clear Penetrative Sealer:
- Ensure surface is dry, clean, stable and free from previous coatings
- Apply Duram S900 using a brush, roller, low-pressure spray or pour-on method
- Saturate the surface thoroughly and allow absorption
- Apply additional coats wet-on-wet for best results
- Allow 12–24 hours to fully cure before exposure to water
Duram S900 Clear Penetrative Sealer limitations:
- Will not bridge or seal cracks – cracks must be repaired beforehand
- Requires adequate absorption into surface – test areas are recommended
- Not effective on sealed, painted or non-porous substrates
Safety precautions when using Duram S900 Clear Penetrative Sealer:
- Personal Protective Equipment: Solvent-resistant gloves, eye protection, and respirator
- Ventilation: Ensure open air or mechanical ventilation during use
- Handling: Keep away from flames and ignition sources; flammable liquid
- Disposal: Follow local hazardous waste regulations for disposal
Duram S900 Clear Penetrative Sealer can be used on the following substrates:
- Concrete – ensure it is clean and dry before application
- Face Brick – test for efflorescence before sealing
- Cement Render – must be stable and free from dust
- Block Work – suitable for exterior exposed areas
- Sandstone – compatible with natural porous stone
- Terracotta and Porous Pavers – allows breathability and protection
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