Arbosil XL 1099 S - Non-Staining Neutral Cure Silicone
Arbosil XL 1099 S is a one-part low modulus neutral cure silicone sealant that is non-staining on sensitive natural and manufactured substrates. Formulated specifically for marble, granite, precast concrete, and other materials susceptible to staining from standard silicones, it delivers 50% movement accommodation, excellent adhesion, and a 25+ year service life.
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Specify Arbosil XL 1099 S
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Unique properties of ARBOSEAL Pro® Arbosil XL 1099 S
ARBOSEAL Pro® Arbosil XL 1099 S prevents the staining and discolouration that standard silicones can cause on sensitive substrates, without compromising on flexibility or service life.
Non-staining formulation — prevents discolouration of marble, granite, and precast concrete
Low modulus flexible seal — 50% movement accommodation in butt joints
Excellent adhesion to a wide range of substrates including PVC-U and aluminium frames
Neutral cure chemistry — no acetic acid release, suitable for sensitive materials
Available in multiple colours including White, Black, Anthracite, and Limestone
25+ year service life — meets BS EN ISO 11600 F/G – 25 LM and BS 5889 Type A: 1989
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Main Applications
ARBOSEAL Pro® Arbosil XL 1099 S is the specified choice for sealing on natural stone, sensitive architectural substrates, and perimeter floor joints.
Natural Stone & Granite
Non-staining sealing of marble, granite, and other natural stone finishes in construction.
Precast Concrete
Perimeter sealing of precast concrete panels and architectural concrete elements.
Perimeter Floor Joints
Sealing perimeter floor joints in commercial and residential interiors
PVC-U & Aluminium Frames
Perimeter sealing of uPVC and aluminium window and door frames.
Technical Specifications & Downloads
| Description/Standard | Performance |
|---|---|
| Colour | White, Black, Grey, Anthracite, Limestone, Buff, Portland |
| Skin Time (at 20°C / 65% RH) | 10-15 minutes |
| Application Temperature | +5°C to +50°C |
| Service Temperature | −50°C to +150°C |
| Typical Shore Hardness | 25–30 |
| Cure Rate (at 20°C / 65% RH) | 2 mm / 24 hours |
| Chemical Resistance | Resistant to most dilute acids and alkalis. Organic solvents may cause temporary swelling and loss of properties. |
| UV Resistance | Very Good |
| Service Life | 25 years + |
| Movement Accommodation – Butt Joints | 50% |
| Movement Accommodation – Lap Joint | 100% |
| Specification Compliance | BS EN ISO 11600 F/G – 25 LM; BS 5889 Type A: 1989 |
| Packaging | 25 × 380 ml polyethylene cartridges per box |
Associated Products
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Frequently Asked Questions
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Find your contacts
Regardless of whether you are an architect and planner, property developer, industry specialist, distributor, applicator or specifier – if you have any questions about our products, services or specific construction projects, please feel free to contact the CARLISLE® contact person in your area with your technical questions. Our experts will be happy to advise you.
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