BOSTIK SMARTFLEX PU (600ml) / BOSTIK PU CONSTRUCTION SEALANT ONE COMPONENT/ GAP FILLER / JOINT FILLER

YOUR SMART ADVANTAGES

- Low modulus (±25% joint movement)

- Excellent durability

- One component, no mixing required

- Suitable for narrow joints, easy extrusion

- Paintable* (refer to paintability section)

DESCRIPTION & USES

Bostik Smartflex PU is a low modulus, one component, Class-B polyurethane sealant. When cured it will form a tough, flexible seal capable of cyclic expansion and compression movement of 50% (+ 25%) of the original installed joint width. It has excellent resistance to normal weathering conditions such as rain, sunlight, snow, sleet, ozone, atmospheric contamination and pollution

Can be used for:

- Insitu concrete and render

- Brickwork and block work

- Plasterboard face and paper lined recessed edges

- Fibre cement sheet

- Aluminium windows and general windows

- Granite, sandstone and marble

CLASSIFICATION STANDARDS  ISO 11600-Class F-25LM  ASTM C.920-87 & 98 (USA) as Type S, Grade NS, Class 25, use NT, G, A, M, &O as an external joint sealant.

APPLICATION

Bostik Smartflex PU should be dispensed from a sausage by means of a caulking gun (available from Bostik). Sausage application:

1. Clip the end of the sausage and place in a barrel gun

2. Screw the end cap and nozzle onto the barrel gun

3. Use the trigger to extrude the sealant. To stop; depress the catch plate. Apply Bostik Smartflex PU in a continuous operation using enough pressure to properly fill the joint.

Tool off the surface of the sealant with an appropriate sized spatula or trowel. Apply sufficient pressure to leave a smooth, consistent surface and ensure maximum contact with the interface of the joint

Joint sealing hints:

- Always use a backing rod for correct sealant geometry and contact with the substrate

- Prime after the installation of the backing rod

- Ensure maximum adhesion to bond face

- Minimum allowable joint depth is 6mm

- Maximum allowable joint width is 50mm

- Depth to width ration of 1:1 up to 12mm width and 1:2 from 12-50mm width

- Tool sealant to achieve concave shape

Colours Black, White & Grey

*NOTE THAT ACTUAL PACKING LABELLINGS/ DESIGN MAY VARY FROM PICTURES*

| Waterproofing | Traffic Control | Expansion Joint | Industrial Flooring | Protective Coating | Concrete Repair |