Supex 500 Acrylic Sealant

Supex 500: Best Window Sealant – Acrylic Sealant for UPVC Windows in India

Discover Supex 500 – The Leading Window Sealant for UPVC Frames

You seal gaps around UPVC windows every day. Supex 500 handles it perfectly. This paintable acrylic window sealant fills joints quickly. It creates flexible, durable seals that stop air leaks and dust. Builders and installers in India trust it for clean, professional finishes. Moreover, it bonds strongly without sagging. Therefore, it excels as the top window sealant for UPVC and aluminium frames.

First, see why it matters. Poor sealing causes energy loss and discomfort. However, Supex 500 prevents that. It cures as water evaporates and forms a strong barrier. As a result, homes and buildings stay comfortable and efficient.

Key Features of Supex 500 Acrylic Window Sealant

Supex 500 stands out with practical strengths. Here are the highlights:

• Paintable and sandable – Accepts paint easily for seamless looks.
• Zero VOCs and low odour – Eco-friendly; safe for indoor use.
• Non-sag formula – Applies smoothly on vertical joints.
• Strong adhesion – Bonds to UPVC, aluminium, wood, concrete, plaster, tiles, masonry, granite, and glass.
• Flexible seal – Offers ≥100% elongation; handles movement well.
• Fast skinning – Tack-free in 15–60 minutes at 25°C.
• Cure rate – 2 mm per 24 hours for quick results.
• Good tensile strength – ≥0.1 MPa at break for reliable hold.
• Water-based – Cleans up easily with water while uncured.
• Multiple colours – Clear, white, black, brown, or custom options.

Additionally, it resists low-moisture conditions effectively. This makes it ideal for interior and protected exterior gaps.

Why Choose This Window Sealant Over Silicone?

Acrylic window sealants like Supex 500 beat silicone in many ways. They allow painting and sanding. For example, you achieve smooth, coloured finishes on frames. In contrast, silicone resists paint and stays glossy. Supex 500 also offers zero VOCs and easy cleanup. Consequently, it suits eco-conscious projects and indoor work.

Installers prefer it for cost savings. It provides durable elasticity without high expense. Plus, it fills gaps well in dry areas. As a result, it reduces callbacks and improves satisfaction.

Top Applications for Supex 500 Window Sealant

Use Supex 500 in these common areas:

• UPVC and aluminium windows – Seal perimeter joints and frame gaps.
• Doors and frames – Fill gaps around UPVC or PVC doors.
• Interior finishing – Seal skirting boards, trim, and wall cracks.
• HVAC systems – Seal ducts and air-handling joints.
• General construction – Fill concrete expansion joints or masonry gaps.
• Other uses – Glazing, crack filling on ceilings, or sealing around tiles.

It works great in low-moisture spots. Therefore, one sealant covers multiple tasks.

Simple Application Steps for Supex 500

Steps to follow for application of Window sealant:

1. Clean surfaces thoroughly. Remove dust, grease, and contaminants.
2. Ensure areas stay dry for best adhesion.
3. Cut cartridge nozzle to size. Load into caulking gun.
4. Apply continuous bead into the joint.
5. Tool and smooth within tack-free time for neat finish.
6. Clean excess immediately with water.
7. Allow full cure. Paint or sand once dry.

It skins fast and cures reliably. This speeds up jobs on site.

FAQs

1. What is a window sealant, and why use acrylic like Supex 500 for UPVC windows?

Window sealant fills and seals gaps around frames to prevent air leaks, dust, noise, and water ingress. Acrylic sealants like Supex 500 are water-based, paintable, low-odor (zero VOCs), and eco-friendly—ideal for UPVC, aluminum, wood, concrete, and interior/protected exterior joints where a seamless, painted finish is desired.

2. Is Supex 500 acrylic sealant suitable for UPVC windows in India?

Yes—it’s specifically designed for UPVC window and door frames. It bonds strongly to UPVC, provides flexible sealing (≥100% elongation), fills gaps effectively, and handles minor movement without cracking. Great for Indian climates in protected areas.

3. How long does acrylic window sealant take to dry/cure?

Skin forms in 15–60 minutes (tack-free). Full cure at ~2 mm depth per 24 hours (depends on humidity/temperature/thickness). Avoid stressing or painting until fully cured (typically 24–48 hours for thin beads).

4. Can Supex 500 be painted over?

Yes—one of its biggest advantages over silicone. It’s fully paintable and sandable after curing for a seamless, professional finish. Use water-based paints for best results.

5. Is acrylic window sealant better than silicone for UPVC frames?

Acrylic (like Supex 500) excels for interiors, paintable needs, low-odor indoor work, and cost savings. Silicone offers better waterproofing and UV resistance for fully exposed exteriors. Use acrylic for protected gaps/joints; silicone for high-moisture outdoor areas.

6. Can it be used outdoors on UPVC windows?

Suitable for protected exterior gaps (e.g., under eaves, low-exposure areas). It’s water-resistant but not fully waterproof like silicone—avoid constant water immersion or heavy rain exposure for longevity.

7. What surfaces does Supex 500 bond to?

Excellent adhesion to porous/non-porous materials: UPVC, aluminum, wood, concrete, brick, plaster, tiles, masonry, granite, glass. Non-sag formula works well on vertical joints.

8. Is it safe and eco-friendly?

Yes—zero VOCs, low odor, water-based (easy cleanup). Safe for indoor use, eco-conscious projects, and green building standards in India.

9. Any tips for best results with acrylic window sealant?

• Always apply to clean, dry surfaces.
• Don’t apply too thick (max 10–12 mm depth).
• Tool for smooth finish before skin forms.
• For large gaps, use backer rod first.
• Test on small area if unsure. Store in cool, dry place.

Benefits for Indian Window Installers and Builders

India’s construction grows fast with more UPVC installations. Supex 500 supports this trend. It offers consistent quality, pan-India delivery, and expert support from Mumbai. Moreover, its eco-friendly design meets green building needs.

Choose Supex 500 today. It seals gaps effectively, saves energy, and delivers neat results. For the best window sealant, acrylic window sealant, or UPVC gap filler in India, this product leads the market.

Enquire Now – Seal UPVC Windows Perfectly with Supex 500!