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SHARPIE MSC1-14 Modified Silicone LM
A one component type, low modulus modified silicone sealant formulated using advanced non- bleed silicone technology to reduce or eliminate dirt pickup, surface streaking, and substrate staining.
Key Highlights
- ±100% / -50% joint movement capability
- Primerless adhesion to most substrates (aluminum, stone, brick, concrete, coated panels, prefab housing)
- Non-staining on marble, granite, limestone
- Low dirt pickup – reduced streaking and surface staining
- Neutral cure – non-corrosive, low odor
- Service temperature: -30°C to +90°C
- ASTM C920 Class 50, JIS A 5758 F-20LM compliant
Technical Specifications
| Chemistry | Modified Silicone (Neutral Cure) |
| Modulus | Low |
| Movement Capability | +100% / -50% |
| Service Temperature | -30°C to +90°C |
| Adhesion | Primerless to many substrates; primers P-32 / P-50 available if required |
| Finish | Matte; reduced dirt pickup |
| Tack-Free (23°C) | ~60 minutes |
| Hardness (Shore A) | ~20 |
| Elongation at Break | ~780% |
| Tensile Strength | 0.95 N/mm² (Ultimate, 23°C) |
| Slump | 0 mm (5°C & 50°C) |
| Density | ~1.39 g/ml |
| Cure Rate (6 mm bead) | 2–3 days (23°C, 50% RH); >10 days (5°C) |
| Elastic Recovery | 67% |
| Loss of Volume | ~1.4% |
| Fungal Resistance | Pass |
| Chemical Resistance | Good against household cleaners and weathering |
| Colors | Available in up to 50 standard colors |
Applications
- Façade modules, aluminum panels, coated panels, prefab housing
- Natural stone – marble, granite, limestone (non-staining)
- Exterior wall joints, roof materials, siding, wood panels
- Expansion joints in concrete and mortar
- Terminal sealing of waterproofing sheets
- Repair of cracks in mortar/concrete
- Weatherproofing between similar or dissimilar materials
- Window perimeters and punched openings
- Interior watertight and airtight joints
Packaging
| Format | Size | Units / Box | Notes |
|---|---|---|---|
| Cartridge | 320 ml | 10 | Single-component |
