Geocel 925 NS Non Staining Coloured Facade Natural Stone Joint Sealant 925ns

Geocel 925 NS Non Staining High Performance Coloured Facade Natural Stone Ms Building Joint Sealant

Colours: Black, Grey, Stone, Buff, Travertine, Portland Point, Light Grey.

Geocel 925 NS Non-Staining LM Coloured Façade & Natural Stone Joint Sealant designed for use on prestige buildings and for Natural Stone joints and those highly exposed to extreme weather conditions, aggressive atmospheres and UV light, specifically formulated as a non-staining sealant and for application to difficult substrates associated with modern façade construction, Geocel 925ns is non-hazardous, containing no free Isocyanates, volatile organic solvents, acids or halogens, environmentally friendly, with excellent resistance to UV light and atmospheric degradation.

Ensure superior sealing and long-lasting protection with Geocel 925 NS Non-Staining Coloured Façade & Natural Stone Joint Sealant, a high-performance sealant is specifically designed for sensitive surfaces like natural stone, marble, and granite, preventing staining and discolouration. Ideal for both new builds and restoration work, it provides a durable, weatherproof seal that can withstand joint movement without cracking. Available in various colours, this sealant seamlessly blends with your stonework, offering a polished, professional finish.

Why Choose Geocel 925 NS Non-Staining Sealant?

Geocel 925 NS is engineered to deliver high performance on natural stone surfaces, protecting them from staining that can occur with conventional sealants. Its neutral-cure formula ensures compatibility with sensitive materials, while its flexibility accommodates structural movement. With excellent adhesion and UV resistance, this sealant is ideal for both interior and exterior applications, maintaining long-term durability and appearance in all weather conditions.

Key Features and Benefits:

• Non-Staining Protection: Specifically formulated to prevent staining on natural stone, marble, and granite.
• Flexible and Crack-Resistant: Absorbs joint movement without cracking or shrinking, ensuring reliable performance over time.
• Weatherproof and UV Resistant: Designed to handle harsh outdoor conditions, including temperature changes, moisture, and prolonged sun exposure.
• Strong Multi-Surface Adhesion: Bonds securely to natural stone, masonry, concrete, and brick.
• Professional Appearance: Available in a range of colours to blend with your project’s design, providing a neat, polished finish.
• Neutral Cure: Non-corrosive and ideal for sensitive materials, ensuring long-term protection without surface damage.

• Benefits of Geocel 925 NS Sealant

  • Prevents Staining: Designed to maintain the natural beauty of stone surfaces, protecting them from unsightly discolouration.
  • Long-Term Flexibility: Accommodates movement due to thermal expansion, vibrations, and structural shifts.
  • Weather-Resistant: Maintains performance in both interior and exterior conditions, offering protection from UV rays and moisture.
  • Custom Colour Options: Available in multiple colours to seamlessly match or enhance your project’s design.
  • Ideal for High-Value Projects: Trusted by professionals for use in both modern and historically significant buildings.

  • Geocel 925 NS Benefits:

    • Non staining
    • Good primer less adhesion on many common construction substrates
    • Low dirt pick up
    • High movement accommodation
    • High UV and aggressive atmosphere resistance
    • Comprehensive colour range
    • Environmentally friendly
    • Excellent low temperature gun ability

Applications

• Natural Stone Sealing: Provides non-staining, flexible seals for joints in stone features, such as marble and granite.
• Architectural Façades: Ensures weatherproof and aesthetically pleasing joints in stone or masonry façades and cladding systems.
• Expansion Joints: Seals dynamic joints that are subject to movement, such as in stone and concrete structures.
• Perimeter Sealing: Protects openings around doors, windows, and structural gaps from air and water penetration.
• Restoration & Heritage Projects: Ideal for preserving the look and structural integrity of historic stone buildings.
• Commercial and Industrial Use: Suitable for sealing joints in large projects such as offices, schools, and public buildings.

How to Use Geocel 925 NS Sealant

1. Surface Preparation: Clean and dry all surfaces, ensuring they are free of dust, grease, and contaminants. For sensitive materials like marble, avoid harsh cleaning agents.
2. Nozzle Cutting: Trim the nozzle to your desired bead size at an angle and attach it securely to the cartridge or foil pack.
3. Load the Cartridge: Insert the cartridge into a compatible caulking sealant gun for smooth application.
4. Backing Material: Apply the backer rod or bond breaker
5. Sealant Application: Apply a continuous bead along the joint, ensuring full surface contact.
6. Tooling: Smooth the bead immediately using a tooling stick or spatula to create a clean, even finish.
7. Curing: Allow the sealant to skin over within 30-60 minutes. Full curing may take several days depending on joint size and environmental conditions.

Available Colours:

• Black - 6001676
• Buff - 6001672
• Grey - 6001673
• Stone - 6001671
• White - 6001670 made to order only 1200 tubes 4 to 6 week lead time
• Portland Point - 6001667
• Light Grey - 6001692

Frequently Asked Questions

1. How does this sealant prevent staining on natural stone?
Geocel 925 NS uses a specialised, neutral-cure formula that prevents staining by stopping oils and chemicals from penetrating into sensitive materials like marble and granite. This ensures that the natural appearance of the stone remains intact.

2. Is this sealant suitable for exterior use?
Yes, Geocel 925 NS is fully weatherproof and UV resistant. It is designed to handle outdoor conditions, including prolonged sun exposure, rain, and temperature fluctuations, making it ideal for exterior stone façades and joints.

3. Can this sealant handle structural movement in expansion joints?
Yes, this sealant is formulated to remain flexible after curing. It can absorb joint movement caused by thermal expansion, structural shifts, and vibrations, helping to prevent cracking and joint failure.

4. What surfaces can this sealant adhere to?
Geocel 925 NS adheres to a wide range of materials, including natural stone, concrete, masonry, and brick. Its strong adhesion properties ensure a durable bond without causing staining or damage to sensitive surfaces.

5. How long does it take for the sealant to fully cure?
The sealant typically skins over within 30-60 minutes and reaches full cure within several days. Environmental factors such as humidity, temperature, and joint dimensions may affect curing time. It is recommended to allow full curing before exposing the sealant to mechanical stress or water.

"Always read the Technical Datasheet prior to first use to ensure you have the correct information and product for your application"