Nitoseal PU40 Product Description

Nitoseal PU40 can be used for joints ranging from 5 to 35 mm in width. To minimize stress on the joint sealant, all movement joints should be designed with an appropriate width-to-depth ratio of 2:1, with a minimum depth of 5 mm for non-porous surfaces and 10 mm for porous surfaces. For joints wider than 35 mm, please contact your local Fosroc Technical Services Department.

Applications (Uses)

Nitoseal PU40 is a joint sealant suitable for sealing joints in concrete, brickwork, blockwork, precast panels, stone cladding, joints around door and window frames, and non-trafficked floor joints.

Product Advantages (Advantages)

• Provides good adhesion to most common construction materials

• Single-component product with a fast curing rate

• Easy to apply

• UV resistant

• Does not require a primer for most applications (refer to the “Priming” section)

• Available in a variety of colors

• Complies with ISO 11600:2002 Type F 25LM

Standards Compliance (Standard Compliance)

Nitoseal PU40 complies with the requirements of the following standards:

• ISO 11600:2002 Type F 25LM

• ASTM C920-95 Type S, Grade NS, Class 25

• US Federal Specification TT-S-00230a Type II, Grade NS, Class 25

Product Description (Description)

Nitoseal PU40 is a single-component elastomeric joint sealant based on polyurethane technology. It is a low-modulus, gun-grade sealant.

Nitoseal PU40 can be used for joints ranging from 5–35 mm in width.

To minimize stress on the joint sealant, all movement joints should be designed with an appropriate width-to-depth ratio of 2:1, with the following minimum joint depths:

• Non-Porous Surfaces: Minimum depth of 5 mm

• Porous Surfaces: Minimum depth of 10 mm

For joints wider than 35 mm, please contact your local Fosroc Technical Services Department.

Product Properties (Properties)

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