Description

Description

Engineer Plus P PUS-99 s a one-part polyurethane joint sealant suitable for horizontal and vertical use.

Typical Application

• Movement joints in precast concrete construction.
• Balcony parapets.
• Retaining walls.
• Bridge culverts.
• Floor joints.
• General caulking to windows, door frames & skirting etc.

Joint Design

The joint width must be designed to suit the movement capacity of the sealant. All joints must be properly designed and dimensioned by the specifier and the main contractor in accordance with the relevant standards. The basis of the calculation for the necessary joint width are the technical values of the joint sealant and the adjacent building materials, the environmental exposure of the building, its method of construction and its dimensions. In general, when wider than 10mm the width to depth ratio of 2:1 must be maintained.

Features & Benefits

• Ready to use single component product.
• Forms a permanent, tough, elastic rubber seal.
• Excellent adhesion to concrete, brickwork, painted wood, glass, glazed surfaces, aluminum, stainless steel, steeland plastics.
• Non-sag.
• No staining of cementitious substrates.
• Accommodates continuous and pronounced cyclic movement.

Packaging

600 ml sausage, 20 per box

Methods of Application

1. SURFACE PREPARATION

• The joint surface should be sound, thoroughly clean, dry and free from grease, oil or any other contamination. All dust and debris must be removed by wire brushing, grinding and vacuuming. Damaged joints should be repaired using a suitable mortar from the Engineer Plus range.
• Ensure that the filler material such as a closed cell polyethylene sheet or rod is tightly packed and no gaps or voids are evident at the base of the joint. Where backing rod is not fitted a bond breaker tape must be used.
• Fix masking tape on both sides of joint surface to provide a neat appearance and ensure the tape is removed immediately after tooling.

2. APPLICATION

Insert the sealant sausage into a hand operated application gun and apply nominal pressure over the trigger of the gun so that sealant starts extruding out of the nozzle and apply the sealant into the joint. Apply a slight excess for tooling and finishing purpose.

3. FINISHING

Tool the sealant immediately with a tooling knife by pressing against the joint to remove air pockets and to ensure 100% contact and adhesion with the joint arris.

4. CLEANING

After sealing the joint, tools and equipment should be cleaned immediately with any Engineer Plus Resin Cleaner

5. PAINTING

• Engineer Plus Sealant can be over coated with most paints, however non flexible coatings may crack. We recommend a bial application. Best results are obtained if the sx PUS-96 allowed to cure fully prior to painting.