Fosroc Nitoseal PU 50 Polyurethane Joint Sealant Price in Bangladesh

Description

Fosroc Nitoseal PU 50 Polyurethane Joint Sealant Price in Bangladesh

Single-Component, Polyurethane Hybrid Sealant.

Nitoseal PU50 is suitable for sealing expansion & control joints in concrete, brickwork, blockwork, precast panels, stone cladding, perimeter sealing around doors and windows, traffi cked floor joints. damp surfaces.

Nitoseal PU50 is a single-component, non-sag, mediummodulus, moisture-cure, polyurethane hybrid joint sealant. It is formulated with a unique silane-terminated polyurethane polymer, that provides unequaled performance against standalone polyurethane sealants. Nitoseal PU50 is an extremely durable sealant in dynamic joints, off ering persistent adhesion once fully cured. Nitoseal PU50 may be applied to joints between 5 and 50mm wide. To minimise stress imposed on the
joint sealant, all moving joints should be designed to an optimum width to depth ratio of 2:1 with an overriding minimum depth of 5mm for non-porous surfaces and 10mm for porous surfaces.
For joint widths exceeding 50mm, please contact your local Fosroc Technical Service Department.

Advantages

• Adhesion to most common building materials
• Single component with fast rate of cure
• Damp surface tolerant
• Non shrink
• Non staining
• High movement accommodation, MAF up to 50%
• Easy to apply
• UV resistant
• Primerless for most applications

Application instructions

Joint surfaces must be clean, dry and free from frost. Remove all dirt, laitance, loose material and foreign matter. Remove all rust, scale and protective lacquers from metal surfaces. Removal can be achieved by rigorous wire brushing, grinding or grit blasting. When resealing, the existing sealant should be
removed from the joint and the arris cleaned back to sound clean concrete. All debris should be removed.
Any expansion joint fi ller must be checked to ensure it is tightly packed and no gaps or voids exist at the base of the sealing slot before positioning a bond breaker.

The use of a bond breaker is not required in expansion joints containing cellular polyethylene joint fi ller such as Hydrocell XL, Backing rod or Expandafoam. For construction or contraction joints a bond breaker tape or back-up strip must be used. Where a particularly neat fi nish is required, mask the face edges of the joint before sealing and remove immediately after tooling is completed.

Priming

A primer is not normally required. In joints subjected to high ovement or where intermittently immersed during service, Fosroc Primer 7 (porous substrates, drying time 30 minutes) or Fosroc Primer 4 (non-porous substrates, drying time 2-5 minutes) is recommended. Prime the joint face using a clean, dry brush. Avoid over application of primer, to prevent causing puddles in the bottom of the joint.
If a primed joint on porous substrate is left unsealed for more than 4 hours, the primer should be removed by grit blasting or grinding and the joint re-primed; on non-porous substrate, joint should be re-primed.
(For further advice on priming required please contact your local Fosroc Technical Service Department).

Application and fi nishing

Sachets

Cut and remove the end of the sachet and place sachet in the Fosroc GX gun. Fit the nozzle and cut at 45 degrees to a suitable size for sealing the joint.

Cartridges

Cut and remove the end of threaded stub on cartridge. Fit the nozzle and cut at 45 degrees to a suitable size for sealing the joint.Fosroc Primer 4 is highly fl ammable. Fosroc Equipment Cleaner and Fosroc Solvent 102 are flammable. Refer to appropriate Product Safety Data Sheet.

Cleaning

Clean tools immediately after use with Fosroc Equipment Cleaner or Fosroc Solvent 102.

Application limitations

• Nitoseal PU50 must not be applied to frost-bearing surfaces if temperature will be below freezing for more than 24 hours.
• Tooling techniques using solvents or soapy solutions are not recommended.
• All surfaces must be evaluated for adhesion prior to product acceptance.

Storage

Shelf life

12 months if stored in the original unopened sachets in a cool dry place. Do not store in direct sunlight. Store in a dry and cool place with temperature + 350C

Health and safety

Nitoseal PU50 may be harmful if swallowed or inhaled and may cause skin and eye irritation. Should accidental skin contact occur, remove contaminated clothing and wash with warm soapy water. Do not scrub. If inhaled remove person to fresh air. Get medical advice if breathing becomes diffi cult. In case of contact with eyes, rinse immediately wih plenty of clean water for at least 15 minutes and seek medical advice. If swallowed, give a glass of water to dilute and seek medical attention immediately – do not induce
vomitting. For further information, refer to the appropriate Product Material Safety Data Sheet.