MS100 is a one-component, moisture-curing elastic sealant based on MS polymer technology. It cures by reacting with ambient humidity to form a durable, elastic rubber. The curing speed depends on temperature, humidity and applied thickness; higher temperature or humidity accelerates skin formation, while lower conditions slow the curing process.

MS100 is a general-purpose, medium; low modulus sealant with high elongation and excellent elastic recovery. It provides strong adhesion to a wide range of porous and non-porous substrates and can be sanded and painted after curing, making it suitable for industrial manufacturing and assembly sealing applications.

Key Features & Benefits

• Low odor & low VOC, free of isocyanates, PVC and organic solvents
• Safe to use, environmentally friendly formulation
• Excellent UV, weather, heat and cold resistance, service life over 20 years
• Very low shrinkage after curing, smooth and even seal surface
• Paintable and sandable after full cure
• FDA compliant for food contact applications (food storage & transportation sealing)
• Maintains elasticity and adhesion from -40°C to +90°C

Typical Applications

MS100 is designed for elastic sealing of joints and gaps on:

• Stainless steel, aluminum, copper
• PVC, polyester, ceramic
• Wood, coated and painted surfaces

Widely used in general industrial sealing applications.

Application Areas

• Elastic sealing of joints in vehicle bodies, containers and enclosures (roof panels, side panels, reinforcement joints, lap joints)
• Waterproof sealing for metal structures, ventilation systems, warehouses, prefab buildings
• Elastic sealing and corrosion protection for weld seams, joints, rivets, bolts and fasteners

Application Notes

• Ensure substrates are clean, dry, and free of oil, dust and grease
• Not suitable for substrates that continuously exude oils
• For oxidized or corroded metal surfaces, remove loose rust or oxide layers before application
• Pre-testing is recommended due to substrate and environmental variations
• Optimal application temperature: +15°C to +40°C (At low temperatures, extrusion resistance increases, warm the cartridge before use)

Technical Data

Property	Value	Standard / Notes
Appearance	White / Grey / Black	Visual
Density	~1.58 g/cm³	23°C, 50% RH
Sag Resistance	<1.0 mm	GB/T 13477.6
Skin Formation Time	~30 min	23°C, 50% RH
Cure Rate	~3.0 mm / 24 h	23°C, 50% RH
Shore A Hardness	~35	GB/T 531.1
Tensile Strength	1.4-1.6 MPa	ISO 37
Elongation at Break	~350%	ISO 37
Shrinkage	≤1.5%	ISO 10563
Service Temperature	-40°C to +90°C	Short-term max 180°C (<20 min)
UV & Weather Resistance	No yellowing or cracking	Accelerated UV test

Test samples cured at 23°C × 50% RH for 28 days.

Packaging Options

• 300 ml cartridge
• 570 ml sausage pack
• 20 L pail

Storage & Shelf Life

• Shelf life: 12 months in original unopened packaging
• Recommended storage temperature: 10°C – 25°C (max. 45°C)
• Store in a cool, dry place to maximize shelf life
• Actual shelf life may vary depending on packaging type