20mm Bitumen Mastic Pad

For SANDHYAFLEX 20mm × 2ft × 4ft Bitumen Mastic Pad, this is a heavy-duty grade used where higher load, movement, and vibration absorption are required compared to 12mm pads.

📌 Product Overview

SANDHYAFLEX 20mm Bitumen Mastic Pad is a thick, compressible, waterproof sheet made from bitumen + mineral fillers + rubber compounds, designed for load transfer and expansion joints in major infrastructure projects.

⚙️ Technical Specifications ParameterDetails

Size	20mm thickness × 2ft × 4ft
Material	Bitumen + mineral filler + rubber
Density	~1.8 – 2.0 g/cm³
Compression Strength	Very High
Water Absorption	Negligible (Waterproof)
Temperature Resistance	Up to ~70–80°C
Finish	Semi-flexible sheet

🔧 Key Features

✔ Higher thickness (20mm) → more load bearing capacity
✔ Excellent shock & vibration absorption
✔ Waterproof and weather-resistant
✔ Prevents direct concrete-to-concrete contact
✔ Long life with low maintenance

🏗️ Where It Is Used Heavy Infrastructure

• Bridges & flyovers (bearing pads)

• Metro rail & elevated corridors

• Highway expansion joints

Industrial Applications

• Heavy machinery foundations

• Precast concrete structures

• Industrial flooring joints

Railway Projects

• Track support cushioning

• Structural vibration control

👉 20mm pads are used where movement + heavy load + durability are critical.

📊 20mm vs 12mm Bitumen Pad Feature20mm Pad12mm Pad

Load Capacity	Very High	High
Shock Absorption	Excellent	Good
Thickness	20mm	12mm
Use Case	Heavy projects	Standard projects
Cost	Higher	Lower

💰 Typical Price (India)

• Approx ₹500 – ₹900 per piece (2ft × 4ft × 20mm)
  (Depends on quality & quantity)

✅ Final Recommendation

• Heavy load / bridge work → 20mm pad (best choice)

• Normal construction → 12mm pad

• Extreme load → consider 25mm or layered pads

🧠 Simple Conclusion

SANDHYAFLEX 20mm Bitumen Mastic Pad = Maximum strength + vibration control + long-term durability for heavy infrastructure

If you want, I can also:

• Suggest which thickness suits your project load

• Create a product datasheet or quotation format

• Or help you compare with neoprene bearing pads