Clear Silicone Sealant – Transparent Waterproof RTV (Supex 200)

What is Clear Silicone Sealant?

Clear silicone sealant is a transparent, waterproof sealing material that cures at room temperature to form a flexible rubber-like seal. It is widely used where an invisible, neat finish is required without affecting the appearance of surfaces.

Supex 200 Silicone Sealant is a high-performance transparent RTV silicone designed for sealing glass, aluminium, tiles, plastics, ceramics, and metal surfaces. It provides strong adhesion, excellent flexibility, and long-lasting weather resistance.

This sealant is ideal for construction, automotive, and industrial sealing applications where durability and clarity are essential.

Key Features of Supex 200 Clear Silicone Sealant

• Crystal-clear transparent finish
• Waterproof and leak-proof sealing
• Excellent adhesion to multiple surfaces
• UV-resistant and weatherproof
• Mold and mildew resistant
• Flexible and crack-resistant after curing
• Suitable for indoor and outdoor applications
• Temperature resistance from −60°C to +200°C
• Long-lasting sealing performance
• Easy to apply and smooth finish

Applications of Supex 200+ in Construction

Supex 200 Transparent Silicone Sealant is widely used in construction and glazing applications requiring strong and invisible sealing.

Typical construction uses include:

• Window and door sealing
• Glass glazing joints
• Aluminium frame sealing
• Bathroom sealing
• Kitchen sink sealing
• Tile and sanitary joint sealing
• Shower enclosure sealing
• Showcase and shopfront sealing
• Roofing and panel sealing
• Curtain wall sealing

These applications make it ideal for residential, commercial, and infrastructure projects.

Automotive Applications of Clear Silicone Sealant

RTV silicone sealant is commonly used in automotive manufacturing and maintenance where waterproof and flexible sealing is required.

Typical automotive uses include:

• Car window sealing
• Headlight and taillight sealing
• Interior trim sealing
• Dashboard sealing
• Weatherproof automotive joints
• Bus and vehicle body sealing
• Rubber gasket sealing
• Mirror and glass bonding

Its strong adhesion and flexibility make it suitable for automotive vibration-resistant sealing.

Industrial Uses of Supex 200+ Silicone Sealant

Supex 200 Silicone Sealant is suitable for industrial environments requiring durable and moisture-resistant sealing.

Typical industrial uses include:

• HVAC duct sealing
• Refrigeration unit sealing
• Cold storage joints
• Machinery enclosure sealing
• Electrical insulation sealing
• Industrial panel joints
• Pipe and flange sealing
• Equipment maintenance sealing

This makes it suitable for industrial maintenance and manufacturing operations.

Why Choose Transparent Silicone Sealant?

Clear silicone sealant provides several advantages compared to visible sealants.

Key benefits include:

• Provides invisible sealing finish
• Maintains aesthetic appearance
• Waterproof and moisture resistant
• Excellent UV resistance
• Resistant to temperature changes
• Prevents leakage and air gaps
• Long-lasting flexibility
• Resistant to cracking and shrinking
• Suitable for glass and decorative surfaces

It is an ideal solution where appearance and durability both matter.

Clear Silicone vs White Silicone Sealant

Request for Technical Data Sheet ( TDS) 

How to Apply Clear Silicone Sealant

Follow these steps for best performance:

1. Clean the surface thoroughly
2. Remove dust, oil, and grease
3. Ensure the surface is dry
4. Apply sealant evenly using cartridge gun
5. Smooth the sealant using a finishing tool
6. Allow curing for 24–48 hours
7. Avoid water exposure during initial curing

Proper application ensures strong and long-lasting sealing.

Surfaces Suitable for Clear Silicone Sealant

Supex 200 Transparent GP Silicone Sealant bonds well to:

• Glass
• Aluminium
• Ceramic tiles
• Plastics
• Metal
• Wood
• PVC
• Rubber
• Stone surfaces

This wide compatibility makes it highly versatile.

Technical Specifications of Supex 200 GP Silicone

Packaging Options

• Standard cartridge
• Bulk packaging (industrial use)

Storage Instructions

• Store in cool, dry place
• Keep away from direct sunlight
• Close cap tightly after use
• Use within recommended shelf life

Proper storage ensures product longevity.

Safety Information

• Use in well-ventilated areas
• Avoid direct contact with eyes
• Keep out of reach of children
• Follow safety instructions on packaging

Frequently Asked Questions (FAQs)

What is Supex silicone sealant used for?

Clear silicone sealant is used for sealing joints in windows, bathrooms, kitchens, aluminium frames, and glass installations.

Is Supex silicone sealant waterproof?

Yes, clear silicone sealant forms a waterproof and airtight seal after curing.

Can clear silicone be used outdoors?

Yes, it is UV-resistant and suitable for outdoor applications.

How long does clear silicone take to cure?

Most clear silicone sealants fully cure within 24–48 hours, depending on humidity and thickness.

Does clear GP silicone sealant turn yellow?

High-quality clear silicone sealants are designed to resist yellowing over time.

Can clear silicone be used on glass?

Yes, it provides excellent adhesion to glass and is widely used in glazing applications.

Is clear silicone flexible after curing?

Yes, it remains flexible and resistant to cracking even after curing.

Why Choose Supex Clear Silicone Sealant in India?

Supex 200 GP Silicone Sealant is trusted across India for reliable sealing performance in construction, automotive, and industrial applications.

Key advantages:

• Suitable for Indian climate conditions
• Designed for long-term durability
• Compatible with multiple surfaces
• Ideal for professional and industrial use
• Reliable waterproof sealing solution