SupaDec Multi Purpose Silicone

The SupaDec Multi Purpose Silicone – 300ml is a high-performance, trade-quality sealant designed for versatile sealing and bonding applications. Available in White, Black, Brown, and Clear variants, this waterproof and mould-resistant silicone adheres to most smooth and non-porous surfaces, forming a permanently flexible rubber seal with a 40-year life expectancy. With a quick-cure formula and anti-fungal compound, it’s ideal for both interior and exterior use, perfect for bathrooms, kitchens, windows, and more.

Product Variants & Specifications

300ml White

• Volume: 300ml
• Colour: White
• Boxed Dimensions: W: 16.0cm x H: 24.0cm x D: 21.0cm
• Boxed Weight: 350g
• Application Method: Caulking gun (C3 cartridge)

300ml Black

• Volume: 300ml
• Colour: Black
• Boxed Dimensions: W: 16.0cm x H: 24.0cm x D: 21.0cm
• Boxed Weight: 350g
• Application Method: Caulking gun (C3 cartridge)

300ml Brown

• Volume: 300ml
• Colour: Brown
• Boxed Dimensions: W: 16.0cm x H: 24.0cm x D: 21.0cm
• Boxed Weight: 350g
• Application Method: Caulking gun (C3 cartridge)

300ml Clear

• Volume: 300ml
• Colour: Clear
• Boxed Dimensions: W: 16.0cm x H: 24.0cm x D: 21.0cm
• Boxed Weight: 350g
• Application Method: Caulking gun (C3 cartridge)

Key Features & Benefits

✔ Waterproof & Mould Resistant

Creates a watertight seal with an anti-fungal compound, preventing mould growth in high-humidity areas like bathrooms and kitchens.

✔ Highly Flexible

Forms a permanently flexible rubber seal that accommodates movement, ideal for joints and gaps in dynamic environments.

✔ Adheres to Most Surfaces

Bonds effectively to smooth and non-porous materials, including glass, ceramic, metal, and PVC, ensuring versatile application.

✔ Quick Cure

Fast-curing formula allows for rapid project completion, forming a durable seal within hours.

✔ 40-Year Life Expectancy

Long-lasting performance ensures reliable sealing for decades, making it a cost-effective choice for interior and exterior projects.

Application Instructions

1. Ensure surfaces are clean, dry, and free of dust, grease, or old sealant.
2. Cut the cartridge nozzle at a 45° angle to the desired bead size and load into a caulking gun.
3. Apply a continuous bead of silicone along the joint or surface, using steady pressure for even application.
4. Smooth the bead with a wet finger or tool within 5–10 minutes for a neat finish.
5. Allow to cure for 24 hours (depending on humidity and bead thickness) before exposing to water or stress.

Care & Maintenance

• Remove excess or uncured silicone with a cloth and white spirit; cured silicone requires mechanical removal.
• Store unopened cartridges in a cool, dry place below 25°C to maintain shelf life.
• Ensure proper ventilation during application and curing to avoid inhalation of fumes.
• Dispose of empty cartridges according to local regulations.

FAQs

Q: What surfaces can this silicone adhere to?

A: It adheres to most smooth and non-porous surfaces, including glass, ceramic, metal, PVC, and sealed wood. 

Q: Is it suitable for high-humidity areas?

A: Yes, its anti-fungal compound and mould resistance make it ideal for bathrooms, kitchens, and other humid environments. 

Q: Can it be used outdoors?

A: Absolutely, it’s designed for both interior and exterior use, withstanding UV rays and weather conditions. 

Q: How long does it take to cure?

A: It typically cures within 24 hours, depending on bead thickness, humidity, and temperature.

Q: Can it be painted over?

A: No, silicone sealants are generally not paintable; choose the appropriate colour for your project.

Conclusion

The SupaDec Multi Purpose Silicone – 300ml is a versatile, high-performance sealant for professional and DIY sealing tasks. Available in White, Black, Brown, and Clear, its waterproof, flexible, and mould-resistant properties ensure durable seals with a 40-year life expectancy. Whether sealing baths, windows, or exterior joints, this quick-cure silicone delivers reliable, long-lasting results across most surfaces.

SupaDec – Built for the job. Ready for the task.