ARBOSIL HDLMS - High-Viscosity Neutral Cure Silicone Sealant
ARBOSEAL Pro® Arbosil HDLMS is a one-part neutral cure low modulus silicone sealant formulated with higher viscosity for improved tooling performance. Suitable for joints in translucent roofing sheets, MVP and Heel Bead glazing methods, perimeter sealing of uPVC frames, and industrial applications including HVAC ducting, it provides a quick skin time and 25+ year service life.
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Unique properties of ARBOSEAL Po® Arbosil HDLMS
ARBOSEAL Pro® Arbosil HDLMS combines the proven performance of neutral cure silicone with higher viscosity for improved workability in overhead, vertical, and industrial applications.
Higher viscosity formulation — stays in place and tools cleanly in demanding joint positions
Quick skin time of 10–20 minutes — reduces smearing risk and speeds installation
Suitable for translucent roofing sheets — compatible with polycarbonate and glass systems
MVP Glazing and Heel Bead compatible — specified for double-glazed unit installation
Industrial-grade performance — suitable for HVAC ducting, stainless steel, and coated metals
25+ year service life — meets BS EN ISO 11600 F – 25 LM
Technical Data
| Description/Standard | Performance |
|---|---|
| Colour | White, Translucent (other colours available on special order) |
| Skin Time (at 20°C / 65% RH) | 10-20 minutes |
| Application Temperature | +5°C to +40°C |
| Service Temperature | −40°C to +120°C |
| Chemical Resistance | Resistant to most dilute acids and alkalis. Organic solvents may cause swelling and loss of adhesion. |
| 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 – 25 LM |
| Packaging | 25 × 280–380 ml polyethylene cartridges per box |
Associated Products
Frequently Asked Questions
Explore the ARBO® Product Family
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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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