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When tiled wet areas, from bathrooms to balconies, demand a flexible, mould-resistant seal, Adheseal S100 provides the reliable finish. It maintains joint integrity and aesthetic appeal in the face of movement, humidity, and continuous use. Achieve a high-performance, hygienic, and coordinated seal that holds its colour and flexibility, even in demanding environments.
Adheseal S100 was developed from extensive experience supplying silicone sealants since 1989. It is engineered as a neutral curing, anti-fungal sanitary grade silicone sealant to meet the specific demands of wet environments and diverse industrial applications. It creates a permanently elastic, dustproof seal that inhibits mould and biological growth, ensuring long-term performance and hygiene where it matters most.
With a movement capability of ±30% and elongation at break of 300%, S100 absorbs significant joint movement without cracking or delaminating, preventing premature sealant failure in high-stress areas. Its Shore A hardness of 20 ensures a flexible yet durable seal. Rated for temperatures from -50°C to 150°C, this silicone performs reliably in both cold stores and hot, humid bathrooms. The VOC content of 43g/L ensures compliance with Green Star environmental criteria, supporting healthier indoor air quality.
Adheseal S100 is engineered for critical sealing tasks where hygiene, flexibility, and appearance are paramount:
Adheseal S100 typically acts as the final flexible seal in comprehensive waterproofing and flooring systems. For instance, in demanding plant room environments, it provides the critical movement joint seal after concrete priming with Megapoxy H Epoxy and a subsequent application of Megapoxy MC. In tiled wet areas, you will apply S100 as the final step after the substrate has been prepared, waterproofed, and tiled, often following a screed primer and tile adhesive. It ensures a durable, waterproof, and aesthetic finish to the system.
Unlike the standard gloss finish of S100, if your project calls for a contemporary matt aesthetic, consider Adheseal Matt Seal S-250 Sanitary SIlicone Sealant. S250 offers the same neutral cure, anti-fungal properties, and ±30% movement capability as S100, but with a refined matt finish specifically designed to complement modern matt tiles and architectural surfaces.
No, Adheseal S100 is not suitable for aquariums or for applying sealant underwater, including swimming pools or ponds. While it is suitable for below-waterline applications once fully cured, it cannot be applied or cure effectively in a submerged state.
Aim for a 2:1 width-to-depth ratio where possible. Internal joints should have a minimum width and depth of 5mm. External joints require a minimum of 10mm width and depth. Always ensure the silicone bonds to only two surfaces to allow for movement.
Adheseal S100 is recommended for marble and granite after a stain testing program is completed. For other natural stones, a comprehensive stain test is always advised before full application to prevent discolouration or adverse reactions.
No, this silicone is not paintable. Attempts to paint over it will likely result in cracking or peeling of the paint layer due to the sealant's elastic properties and surface characteristics.
| Application | Key benefit | Primary trades |
|---|---|---|
| Movement joints in tiled wet areas (e.g., floor-to-wall) | Accommodates joint movement up to ±30%, preventing cracks and maintaining a waterproof seal, even in humid conditions. | Tilers, Bathroom Renovators, Builders |
| Connecting joints between sanitary ware, bench tops, cupboards, and tiled surfaces | Resists mould and mildew growth with anti-fungal properties, ensuring a clean, hygienic finish in kitchens and bathrooms. | Plumbers, Cabinet Makers, Tilers |
| Sealing materials with different thermal expansion rates | High permanent flexibility and UV stability prevents bond failure and discolouration where varied materials expand and contract. | Builders, Glaziers, Engineers |
| Internal and external sealing around glass partitions or windows | UV stable and colour fast, maintaining aesthetic integrity and weather resistance in exposed applications. | Glaziers, Shopfitters, Builders |
| Sealing around rimless sinks and fibreglass components | Neutral cure chemistry prevents corrosion of galvanised/zinc-coated steel and does not attack concrete, offering broad substrate compatibility. | Plumbers, Kitchen Installers, Boat Builders |
Warning: Causes serious eye irritation and may cause an allergic skin reaction.
Wear appropriate personal protective equipment as required, suitable for the nature of the work and identified hazards. This typically includes gloves and eye protection.
Natural ventilation should be adequate under normal use conditions. Ensure a well-ventilated area, especially in confined spaces, to allow for proper curing and to minimise vapour inhalation.
Store in a cool, dry, well-ventilated place between 10°C and 35°C, out of direct sunlight and away from foodstuffs. Keep containers tightly closed when not in use. Dispose of contents and container in accordance with local, regional, national, and international regulations.
Proper surface preparation ensures optimal adhesion and long-term performance, preventing common failures like delamination or mould growth.
Surface prep: Surfaces must be structurally sound, stable, dry, and clean. Remove dust, loose material, oils, grease, and curing compounds. Ensure the substrate is free from surface water and continuous dampness.
Primer: Adhesion testing is recommended. Primer 50A is recommended for non-porous substrates, and Everflex Supaprime for porous substrates where priming is necessary. Apply with a small brush and allow to dry until solvents evaporate.
Surface prep: Concrete must cure for at least 28 days before sealant application. This prevents mould growth, poor adhesion, and subsequent delamination caused by moisture or uncured elements.
Primer: Adhesion testing is recommended. Everflex Supaprime is recommended for porous concrete where priming is necessary. Apply with a small brush and allow to dry until solvents evaporate.
Surface prep: Use the two-wipe process: moisten a clean cloth with Acetone or 100% White Spirits, wipe the surface, then immediately wipe with a second clean cloth. Change cloths frequently to avoid re-depositing contaminants.
Primer: Adhesion testing is recommended. Primer 50A is recommended for these non-porous substrates where priming is necessary. Apply with a small brush and allow to dry until solvents evaporate.
| Property | Value |
|---|---|
| Product Type | Polysiloxanes |
| Curing System | Oxime |
| Density (specific gravity) | 1.03 g/cm3 (translucent) |
| Shore A Hardness | 20 |
| Elongation at Break (ISO 8339) | 300% |
| Application Temperature | +5°C to +35°C |
| Temperature Resistance | -50°C to 150°C |
| Movement Capability | ±30% |
| Elastic Recovery (ISO 7389) | >90% |
| VOC | 43 gm/L |
| Skin Time | Approx. 20 minutes |
| Cure Time | 2mm per day (at 25°C & 50% humidity) |
| Shelf Life | 18-24 months |
Here are some common examples on where Adheseal S100 Sanitary Silicone Sealant used by our customers.
