Sealothane NS™ is used for movement and construction joints to form a permanently flexible seal.
Examples are:
- Between pre-cast concrete elements
- Around window and door frames
- Flashing
- Reglets
Sealothane NS™ may also be used as a flexible adhesive to bond building elements together.
Sealothane NS™
1-Component Low-Modulus Polyurethane Caulk
A 1-component polyurethane-based non-sag sealant, which cures by exposure to moisture to form a tough and highly elastic seal.
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Uses
Advantages
Sealothane NS™ possesses excellent adhesion to the following building materials:
- Concrete and brick
- Natural and artificial stone
- Glass and ceramics
- Aluminum and stainless steel
In addition Sealothane NS™:
- Can tolerate +100% to -50% joint width movement
- Is resistant to fuel
- Has exceptional cut and tear resistance
- Is paintable
Application
Priming
Sealothane NS™ usually has excellent adhension to concrete, masonry and brick. For maximum performance where conditions of joint surface may be suspect, prime with Sealobond Primer WB™. No primer needed on ceramic, glass, stainless steel, aluminum and nonferrous metals. Use Sealobond Primer WB™ on insulated concrete, cement renders, asbestos cement and plaster.
Surface Preparation
Surfaces must be dry and free if dust, loosely adhering particles, oil or grease. All traces of release agent silicone treatment must be removed from the joint faces. Glass and ceramic surfaces should be wiped with naphtha.
Backing Strip/ Bondbreakers
In open joints the correct depth should be established by inserting non-adhering, cylindrical shaped polyethylene foam strips. Where the joints have been constructed with fiberboard, this should be raked back to the correct depth and a bondbreaker strip should be inserted.
Cleaning
Clean all tools and equipment with Sealoflex Quickclean™ immediately after use. Cured material can only be removed mechanically. Remove masking tape within 1 hour after application.
Precautions
• Combustible; Keep away from open flames and high heat. Contains Xylene.
• Avoid breathing vapors
• Use with adequate ventilation
• Irritant. Avoid skin and eye contact. Use of NIOSH approved vapor aspirator, safety glasses and chemical resistant gloves recommended.
• First Aid:
In case of contact with skin, wash thoroughly with soap and water.
For eye contact, flush immediately with clear water for at least 15 minutes.
Contact physician.
Important Notes
Joint Configuration
For the successful function of Sealothane NS™, it is recommended that the following guidelines of joint configuration be observed.
- For joints up to 3/8” wide: Width: Depth ratio is 1:1
- For joints over 3/8” wide: Width: Depth ratio is 2:1
Maximum depth must not exceed 1/2” and Minimum depth must not be less than 1/4”.
For this and/or related products, please refer to individual product data sheets, System Application Guides, Products MSDS, Primer Chart, Fabric Chart.
Color
White (Beige, Gray, Brown and Black are available upon request; however minimum quantities apply.)
Technical Data
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Type: |
Polyurethane Elastomer |
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Shelf Life and |
12 months if unopened |
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Application Temperature: |
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Curing Rate: |
Tack-free to touch: 3 hours |
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Recovery: |
>80% |
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Shore A Hardness |
15 to 25 |
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Elongation at Break |
700% |
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Adhesion and Peel |
Aluminum – 25 lbs. |
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Chemical Resistance: |
Good resistance to diluted acids, alkalis and water |
Coverage
One 10.0 fl. oz. cartridge seals 12.4 lineal feet of 1/2" wide x 1/4" deep joint or See Chart Below.
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LINEAL FEET COVERAGE AT WIDTHS AND DEPTHS SHOWN |
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W I D T H S ( INCHES) |
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DEPTHS (INCHES) |
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¼ |
½ |
¾ |
1 |
1¼ |
1½ |
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¼ |
24.8 |
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½ |
12.4 |
6.2 |
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¾ |
9.3 |
4.1 |
2.8 |
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1 |
6.2 |
3.1 |
2.1 |
1.5 |
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1¼ |
5.0 |
2.5 |
1.6 |
1.2 |
1.0 |
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1½ |
4.1 |
2.1 |
1.4 |
1.0 |
0.8 |
0.7 |
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Packaging
10.3 fl. oz. cartridges
24 per case
Click above for larger image.