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Nitoseal® MS300

Nitoseal® MS300 is a one part, high modulus sealant based on hybrid silyl modified polyether technology. It has a rapid rate of cure and forms a tough elastomer capable of supporting heavy wheel loads. Nitoseal® MS300 may be applied between 6mm and 20mm wide, for internal trafficked flush joints and up to 40mm wide, for non-trafficked / recessed trafficked joints. In most cases it is recommended to form a sealing slot with a square cross- section, subject to a minimum 10mm depth. To ensure the sealant operates within its stated movement accommodation capacity the sealing slot widths should be designed in accordance with the recommendations of BS6093.

Properties

Physical Form
Paste

Product families

Ready-to-Use Products — Adhesives & Sealants
  • Caulks & Sealants

Other characteristics

Brand
Nitoseal
Product Type
1K (1 component) Sealant
Color
Gray (special colors available on request).
Markets
Building & Construction
Storage

Shelf life of 12 months if kept in a dry store at 10 - 20°C in original unopened packaging. If stored at high temperatures and / or high humidity, the shelf life may be significantly reduced.

Advantages

Suitable for forklift truck traffic.; Suitable for saw cut and perimeter joints.; Abrasion resistant.; Withstands vehicular traffic.; Single component.; Fast rate of cure.; Easy to apply at low temperature.; Can be applied to damp substrates.; Primer-less for most applications.; Hard, but flexible sealant; resists picking and vandalism.

Limitations

Do not apply at temperatures below 5°C.; Not suitable for contact with bituminous materials.; Whilst Nitoseal MS 300 has excellent adhesion to many types of residual sealant its use should not be considered a substitute for a good standard of joint preparation.; In large joints ensure sealant is sufficiently cured before trafficking. In 40 mm joints this could be up to 10 days.; Flush finished joints should not be used in locations where significant thermal movement may occur during service (e.g. external locations, particuarly areas subject to direct sunlight) as this can result in the sealant bulging above the joint surface when the joints contract.

Technology
Ready-to-Use Products
Packaging Type
Sachets

Technical data

Table 1 of 1

18 rows
CharacteristicValueUnitMethod
Application Temperature5 - 50°C—
BAAQMD Reg 8 Rule 51Passes——
Cure Rate (20°C, 50% RH, 24 hours)3.0mm—
Cure Rate (20°C, 50% RH, 48 hours)6.0mm—
Cure Rate (20°C, 50% RH, 72 hours)8.0mm—
E-Modulusmin. 0.8N/mm2ISO 8339
Flash Pointmin. 65°C—
LEED EQc4.1Passes——
ModulusHigh——
Movement Accommodation Factor (Butt Joints)25.0%—
Movement Accommodation Factor (Lap Joints)50.0%—
SCAQMD Rule 1168Passes——

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