Description
2K Gun Grade UV Resistant Polysulphide Sealant
ShaliSeal PS GG 2K Polysulphide Sealant is a high-performance, two-part UV-resistant polysulphide sealant ideal for expansion joints, runways, bridges, and water-retaining structures. Provides long-term flexibility, durability, and watertight protection.
ShaliSeal PS GG 2K Polysulphide Sealant is a two-component, polysulphide-based, UV-resistant sealant specially formulated for long-term joint sealing applications in concrete structures.
It provides excellent adhesion, high flexibility, and superior resistance to UV radiation, chemicals, and weathering.
Features:
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Excellent UV and weather resistance
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High elastic recovery and movement accommodation
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Waterproof and air-tight joint sealing
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Resistant to fuels, oils, and mild chemicals
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Non-staining, paintable surface finish
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Easy to mix and apply (1:1 ratio)
Application
• Expansion joints in industrial, commercial or residential buildings.
• Joints in concrete roads, bridges, subways, flyovers & airport runway.
• Joints in water retaining structures like water tank, swimming pool including decks, aqua ducts, dams, canals & reservoirs.
• Nuclear Power station reactor domes.
• Joints between concrete pipe lines.
• Roof light joints.
🧪 Technical Data (Typical Properties):
| Property | Result |
|---|---|
| Type | Two-component (Part A & Part B) |
| Mixing Ratio | 1:1 by weight |
| Color | Grey / as specified |
| Movement Accommodation | ±25% |
| Tack-Free Time | 4–6 hours |
| Full Cure | 7 days (25°C) |
| Application Temperature | 5°C – 45°C |
| Service Temperature | -20°C to +80°CSurface Preparation & Application: |
Advantages
• Excellent UV resistant.
• Provides uniform, water tight seal.
• Adhesion compatible to most substrate.
• Highly resilient with excellent recovery characteristics and thermal flexibility.
• Prevents cracking by allowing expansion / contraction during atmospheric changes.
• Flexible, tear resistant, rubbery, self-leveling.
• Chemical / flame / fuel resistant.
• After full cure,
§ Can withstand in fully submerged condition, and
§ The Sealant is suitable for potable water as well.
Application Methodology
Ø Surface Preparation
• Remove all loose gravel, dirt, oil, grease and foreign matter by jet of dry air and clean the surface mechanically or by grinding to make it smooth before application.
• Ensure that the moisture content in the prepared surface does not exceed 5% immediately before application of ShaliSeal® PS GG.
• To avoid adhesion of spill-over material beside joint, use masking tape at floor level beside both sides to get sharp edged neat and clean joint.
• Use back up material to avoid third face adhesion and to avoid contact between joint forming board & sealant.
• Use primer on vertical side faces of the joint to ensure strong bonding between substrate and sealant.
Ø Material Preparation
• Mix the entire quantity of Base and Accelerator compounds, which are pre-weighed, thoroughly to a homogenous and uniform grey compound by a slow speed mixture(approx. 400 rpm) fitted with a suitable mixing paddle.
• Ensure that there is no entrapped air.
Ø Application of Material
• Ensure depth of the joint does not exceed its width.
• Start applying the prepared mixer with Gun after 30 minutes of mixing on tacky primed surface. Use backup rod to adjust depth suitably.
• Do not use ShaliSeal® PS GG in grooves exceeding 50 mm in width.
Finishing and Cleaning
• Finish the joint in concave shape by using wooden batten soaked in soap water or white sprit from time to time.
• Remove masking tape within 30 minutes before setting of sealant.
• Clean tools and tackles using solvent like, Xylene etc. Health & Safety
• Avoid contact with skin / eyes, and avoid swallowing.
• Ensure adequate ventilation and avoid inhalation of vapour.
• Wear suitable protective clothing, gloves and eye protection.
• In case of skin contact, rinse with plenty of clean water, then cleanse with soap and water. Do not use solvent to clean the contacted area.
• In case of eye contact, wash with plenty of clean water and seek medical advice.
• If swallowed, seek medical attention immediately. Do not induce vomiting.
Packing
Available in 4 kg container comprising of 3.68 kg Component A and 0.32 kg Component B, packed in
a 16 kg carton.
Storage
Store in a cool dry place, under shed, away from heat.
Shelf Life
12 Months from the date of manufacture when maintain in protected storage in original unopened
sealed condition at 5 – 30°C.
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