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SpECseal MS40

One-component polyurethane sealant for construction bonding.

SpECseal MS40 is a high-quality, one-component polyurethane sealant designed for construction applications. Its neutral and elastic formulation ensures strong adhesion and durability in various conditions. The product is easy to apply, making it suitable for both professional and DIY projects.
With excellent UV resistance and flexibility, SpECseal MS40 is ideal for sealing joints and bonding materials in building and construction environments.
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Technical Details

SpECseal MS40 is versatile and suitable for a range of applications in the construction industry:
  • Bonding of roof tiles.
  • All kinds of bonding in the construction sector.
  • All sealing and bonding applications in the building industry.
  • Sealing of shrinking joints in concrete floors.
  • Strong elastic bonding in vibrating constructions.
SpECseal MS40 offers numerous advantages that make it an excellent choice for construction and bonding applications. Its unique formulation ensures reliability and effectiveness in various conditions, providing long-lasting performance and ease of use.
  • Non-staining on natural stone.
  • Very easy to apply.
  • Permanently elastic after curing.
  • Excellent resistance to UV radiation.
  • Excellent resistance to many chemicals.
  • Very good adhesion on many materials.
SpECseal MS40 is engineered with specific technical properties to ensure optimal performance in construction environments:
Property Value
Density 1.5 g/lm
Shore A Hardness 40±5 (ASTM D2240)
Elastic Recovery >80% (ISO 7389)
Maximum Allowed Distortion ±20%
Max. Tension 1.70 N/mm (ISO 37)
Elasticity Modulus at 100% 0.50 N/mm (ISO 37)
Elongation at Break 200% (ISO 37)
Temperature Resistance -30 to +90°C
Skin Formation @ 23°C and 50% RH Ca. 25 min
Curing Speed @ 23°C and 50% RH Stable Paste
Shelf Life 12 months (when stored in original packaging at max. temperature of 25°C)
Application Instructions for SpECseal MS40:
SpECseal MS40 is applied using a manual or pneumatic caulking gun. It is crucial to ensure that the joint surfaces are clean and free from any contaminants that may hinder proper adhesion.
Preparation:
Before application, confirm that the substrates are clean, dry, and devoid of dust, grease, or other impurities. Avoid applying the sealant to wet, damp, or hot surfaces, as well as during inclement weather for exterior joints.
Smoothing the Sealant:
After the application of SpECseal MS40, the sealant can be smoothed with a finishing tool or gloved finger dipped in soapy water to enhance the finish.
Joint Dimensions:
For optimum sealing jobs, it is recommended to have a joint width that is twice the joint depth, with minimum joint widths of 5mm and a maximum of 30mm.
SpECseal MS40 is available in convenient packaging to meet your construction needs:
SpECseal MS40 is supplied in a 600ml sausage.

For warranty information regarding SpECseal MS40, please contact our SMCC team using any of the contact methods available on this page. We are here to assist you with any inquiries or further details you may need.

Product FAQ

SpECseal MS40 is suitable for various bonding applications in the construction sector, but not all.
Yes, SpECseal MS40 is suitable for exterior applications, provided the surfaces are clean, dry, and not exposed to inclement weather during application.
SpECseal MS40 can effectively bond a variety of surfaces, including concrete, metal, wood, and natural stone. It provides strong adhesion for most construction materials, ensuring reliable performance in diverse applications.
Yes, SpECseal MS40 is paintable with most common paints, but a compatibility test is recommended due to varying formulations.
Yes, SpECseal MS40 has excellent UV resistance.
Yes, SpECseal MS40 is non-staining on natural stone, making it suitable for use.

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