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ESSRBOND PU40 PU Sealant for Construction Joint, 600 ml
Non-sag, gun-grade polyurethane elastomeric sealant
₹399.00 + GST ( 18 % )
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Additional information
| Color | Grey, White |
|---|
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Description
ESSRBOND PU40 is a single-component, non-sag PU sealant specially formulated for moving joints in construction. It cures with moisture to create a strong, flexible, and weather-resistant seal. Suitable for tropical climates, it delivers excellent adhesion and long-term durability.
Features and Benefits
- Solvent-free, Bubble-free curing, UV stable
- Movement capability of ± 35 %
- Excellent mechanical and chemical resistance
- Good adhesion to most construction materials
- Paintable with water and PU based paint
- Exterior and interior application
Application Area
- ESSRBOND PU40 is designed for sealing expansion and control joints, pre-cast concrete panel joints, window
perimeters, steps, risers, roof and tilt-wall joints and between construction materials of dissimilar expansion
coefficients. - It is ideal for sealing in the food industry and clean rooms where LOW VOC sealant is recommended.
Packaging
- 600 ML sausage
Technical Data
| PROPERTIES | Value |
|---|---|
| Appearance | Non-sagging paste |
| Colour | Grey / White / Black |
| Tack free time @ 25 oC / 55% RH | 20 mins Approx |
| Curing speed @ 25 oC / 55% RH | 2.5 to 3.0 mm / 24 hrs |
| Specific gravity | 1.45 +/- 0.05 |
| Elongation at break | >600 % |
| Tensile at break | 1.5 MPA approx |
Application Methodology of ESSRBOND PU40
- Ensure joint sides are clean and dry. Remove any laitance, dirt or other contaminants by wire-brushing, grinding or grit blasting.
- Priming is not generally required. Highly absorbent substrate should be primed. ESSRBOND PU Primer should be used. Apply a thin coat of primer on the substrate to be sealed and allow to dry for some time.
- Insert the ESSRBOND PU40 sealant sausage in the sausage gun. Cut end off sachet and attach cap and nozzle and cut nozzle to desired bead size. Mask joint sides and insert a suitable backing rod if required. Extrude firmly into joint and tool off using a suitable curved tool. Tool the sealant immediately with tooling knife by pressing against the joint to remove air pockets & to ensure 100% contact and adhesion with the surface.
- Fix a bond breaker tape over the backup material to prevent third surface adhesion. Fix a masking tape on both sides of joint surface to get neat & clean appearance of joints after application of sealant. Use only water (or a very mild detergent) to finish the surface.
Precautions & Limitations
- Maximum width for application in a joint is 50 mm
- Minimum depth of seal is 6 mm
- Do not expose the ESSRBOND PU40 sealant to high temperatures above 110 deg C
- Avoid application on damp and moist substrates and at Temperature below 5°C
- Sealant will not adhere to substrates with contamination and traces of bitumen
- Adhesion of the sealant must only be on two opposite faces
- Do not carry out sealing operations during hot weather conditions
- Application to be started only after 30 minutes of priming the substrate
Storage and Shelf Life
- Best before 12 months from the date of manufacture, when stored in cool and dry place at original, unopened condition.
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