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One-component, moisture-curing silicone adhesive offering excellent adhesion to glass, metals, and many plastics without primer.
Low modulus formulation provides high flexibility and stress relief for bonded assemblies subjected to thermal cycling or vibration.
Optically clear, non-yellowing cure ensures long-term aesthetic integrity in visible applications.
Low VOC content and solvent-free composition support industrial compliance with indoor air quality and environmental safety standards.
Good resistance to UV radiation, humidity, and temperature extremes (–55 °C to +180 °C continuous).
Bonding of architectural glazing components including insulating glass units (IGUs) and structural glazing seals.
Assembly of consumer electronics housings requiring optical clarity and shock absorption (e.g., display bezels, sensor windows).
Sealing and bonding in LED lighting fixtures where thermal stability and light transmission are critical.
Medical device assembly for non-implantable enclosures requiring biocompatibility-compliant materials (ISO 10993-5/10 tested).
Automotive interior trim bonding where low odor, low outgassing, and paint compatibility are essential.
| Chemical Type | Acetoxy-cure silicone polymer |
| Product Form | Paste, thixotropic, ready-to-use |
| Appearance | Clear, translucent gel |
| Specific Gravity (25 °C) | 1.04–1.07 g/cm³ |
| Shore A Hardness (7 days, 23 °C/50% RH) | 20–25 |
| Primary Applications | Non-structural bonding, sealing, and gasketing |
| Key Features | Room-temperature curing, low modulus, optical clarity, primerless adhesion |
| Regulatory Compliance | Meets FDA 21 CFR 175.105 for indirect food contact; RoHS 2015/863 compliant; REACH SVHC candidate list free (as of latest update) |
| Common Compatible Systems | Suitability |
| Float glass, borosilicate glass, tempered glass | Highly Recommended – Excellent adhesion without priming |
| Anodized aluminum, stainless steel (304/316), powder-coated steel | Highly Recommended – Strong cohesive and adhesive performance |
| PC (polycarbonate), PMMA (acrylic), ABS, PBT | Recommended – Good adhesion; surface cleaning required prior to application |
| EPDM, silicone rubber, fluorosilicone elastomers | Suitable – Functional bond; limited long-term compression set resistance vs. dedicated RTV sealants |
Q1: What is the CAS Registry Number for DOWSIL ME-1180 Adhesive Clear?
A: The CAS number is 68953-58-2 (for the base polymer system); full formulation is proprietary and not assigned a single CAS. Safety Data Sheet (SDS) Section 3 lists all reportable components.
Q2: What is the recommended bead size and open time for optimal bond formation?
A: Typical bead width: 3–6 mm; minimum open time before clamping: 10–30 minutes at 23 °C/50% RH. Full handling strength develops within 24 hours; full cure requires 7 days under standard conditions.
Q3: How does ME-1180 compare to DOWSIL 3145 in terms of adhesion speed and flexibility?
A: ME-1180 cures faster than 3145 (tack-free in ~30 min vs. ~60 min) and offers lower modulus (~20 Shore A vs. ~35 Shore A), making it better suited for substrates with high CTE mismatch. 3145 provides superior high-temperature resistance (>200 °C short-term).
Q4: Is extraction or migration testing data available for use in food-contact or pharmaceutical packaging applications?
A: Yes — migration testing per EU 10/2011 and USP <87>/<88> extractables studies confirm low levels of acetic acid (<0.5 ppm) and no detectable volatile siloxanes under simulated conditions (10 days @ 40 °C in 10% ethanol). Not approved for direct food contact.
Q5: Does ME-1180 comply with automotive OEM specifications such as GMW14872 or Ford WSS-M99P1111-A?
A: ME-1180 meets key requirements of GMW14872 (Class B, low-odor, low-VOC, thermal cycling pass) and Ford WSS-M99P1111-A (adhesion, humidity resistance, and aging). Full certification documentation available upon request via Dow Automotive Technical Service.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
