MS modified silane sealant

1. Composition & Basic PropertiesTable 1: Fundamental CharacteristicsParameterSpecificatio

Email: info@standard-groups.com

Content

1. Composition & Basic Properties

Table 1: Fundamental Characteristics

Parameter	Specification Range
Chemical Base	MS Polymer (Silane-terminated polyether)
Appearance	Paste-like, non-sag
Density	1.2-1.4 g/cm³
Solids Content	≥99%
Tack-free Time	15-60 minutes
Cure Mechanism	Moisture curing
Full Cure Time	24-72 hours
Shore A Hardness	20-60
Elongation at Break	≥200%

2. Classification by Application

Table 2: MS Sealant Types & Uses

Type	Key Features	Primary Applications
Standard Grade	Good adhesion, UV resistant	Construction joints, glazing
Elastic Grade	High elongation (≥400%)	Expansion joints, concrete repair
Low-modulus	Reduced stress on substrates	Sensitive materials bonding
Fast-cure	Tack-free in <30 minutes	Production line applications
Paintable	Compatible with coatings	Architectural finishes

3. Performance Comparison

Table 3: MS vs Other Sealant Types

Property	MS Sealant	Polyurethane	Silicone	Acrylic
Adhesion	Excellent	Good	Excellent	Fair
Paintability	Yes	Limited	No	Yes
UV Resistance	Excellent	Good	Excellent	Fair
Movement Capacity	±25-50%	±25%	±50%	±10-15%
Temperature Range	-40°C to +90°C	-40°C to +80°C	-60°C to +200°C	-20°C to +70°C
VOC Content	Low	Medium	Low	Medium

4. Technical Advantages

Superior adhesion to most substrates without primer

Excellent weather resistance and UV stability

Paintable surface after full cure

Low VOC and odor compared to polyurethanes

Good elasticity with permanent flexibility

Non-staining to porous materials

5. Application Guidelines

Parameter	Requirement
Substrate Temp	5°C-40°C
Ambient RH	40-80%
Joint Design	Depth:Width = 1:1 to 2:1
Tooling Time	5-15 minutes
Minimum Application Thickness	3 mm
Maximum Application Thickness	15 mm (single application)

6. Industrial Applications

Construction: Window/door installation, curtain wall systems
Transportation: Vehicle assembly, RV manufacturing
Marine: Deck sealing, hull components
Industrial Maintenance: Tank sealing, pipe penetrations
DIY/Home Improvement: Bathroom sealing, tile joint

7. Limitations & Considerations

Not recommended for continuous water immersion
Limited high-temperature performance vs silicones
Requires moisture for proper curing
Higher cost than conventional acrylic sealants
Specialized cleaning solvents required for tools

8. Storage & Handling

Aspect	Specification
Shelf Life	9-12 months (unopened)
Storage Temp	5-25°C
Packaging	Cartridge, sausage, pail
Skin-over Time	10-30 minutes
Clean-up	Specific solvent before curing

Disclaimer: The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.

prev： Epoxy resin adhesive

next：Automotive Interior – Polyurethane Adhesive