You save 1,430 (31%)
31% off the seller list price
Seal Any Leak, Anywhere, Instantly
Flex Paste Black Sealant is a unique, super-thick rubber paste designed to seal out air, water, and moisture effectively. It penetrates surfaces to form a strong, flexible, watertight barrier, even capable of being applied and drying underwater. This USA-sourced sealant is ideal for a wide range of repairs, from foundation cracks to RV and marine projects.
Once fully cured, Flex Paste is paintable, allowing for seamless integration into your project's aesthetic. Its UV resistance and ability to prevent rust and corrosion make it a durable solution for both indoor and outdoor applications. The innovative container design ensures freshness and prevents waste, extending the product's sealing power.
For Indian customers, Flex Paste offers a robust solution for common repair needs. While local sealants may require dry conditions, Flex Paste's underwater application capability provides unmatched versatility. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping, arriving within 12-14 days.
Unmatched Sealing Power & Versatility
Flex Paste's unique rubberized formula penetrates deep to seal out air, water, and moisture, creating a flexible, watertight barrier. Unlike many local sealants that require dry application, Flex Paste works underwater. This makes it exceptionally useful for emergency repairs during India's monsoon season or for marine and RV projects. The 'Stay Fresh Container' ensures the product remains potent, minimizing waste and maximizing value for every repair job.
Ideal for Diverse Indian Repairs
This sealant is perfect for homeowners and DIY enthusiasts tackling various projects. Use it for foundation and concrete repairs, sealing out rodents and pests, bath and shower sealing, roof and RV fixes, auto, marine, and garden projects. While some solvent-based sealers can be sensitive to high heat and humidity during application, Flex Paste's robust formula is designed for challenging conditions. If you need a reliable, paintable, and UV-resistant solution for large gaps and cracks, Flex Paste is an excellent choice. Those seeking a quick-drying, low-odor option for small indoor cosmetic cracks might consider water-based alternatives.
Typical situations where Flex Paste Rubberized Waterproof Sealant Paste Black 473ml (16 Fl Oz) | Seals Gaps helps — illustrative scenarios, not customer reviews.
Emergency roof leak during monsoon season in Kerala.
Flex Paste's ability to be applied and cure underwater makes it perfect for immediate leak repair on wet roofs or gutters, preventing further water damage without needing a dry day.
Sealing large cracks in a concrete foundation or RV exterior in Rajasthan's heat.
The super-thick paste instantly fills large gaps and cracks, forming a durable, UV-resistant, and flexible barrier that prevents water ingress and pest entry, even in extreme temperatures.
| Base Type | Rubberized Paste |
| Key Properties | Waterproof, Paintable, UV Resistant, Flexible, Adheres Underwater |
| Free From | VOCs (Volatile Organic Compounds) - check label for specific claims |
| Application Instructions | Apply directly from the container to fill gaps, cracks, and holes. Can be applied underwater. Ensure surface is clean for optimal adhesion. For large areas, apply thick paste and smooth. |
| Curing Time | Dries underwater; full cure time varies based on application thickness and environmental conditions (typically 24-48 hours for full hardness). |
| Coverage | Approx. 16 Fl Oz (473ml) container. Coverage varies by gap size and application thickness. |
| Cost per use | 16 fl oz container — ₹199 per fl oz |
| Shelf life after opening | 180 days (6 months) — check container for specific PAO symbol or best-by date. |
| Reapplication math | Depends on project size; one 16 fl oz container can seal multiple small cracks or one large hole. |
| Contraindications | Not recommended for structural load-bearing applications. Avoid prolonged contact with skin without gloves. Ensure adequate ventilation during application if used indoors. |
| Allergens / common irritants | May contain chemicals that can cause skin irritation. Wear gloves during application. Refer to product label for full ingredient list. |
| Feature | Flex Paste Rubberized | Others |
|---|---|---|
| Application Conditions | Works underwater; applies and dries underwater. UV resistant. | Most local sealants require dry application and curing; may be sensitive to high humidity/heat. |
| Gap Filling Capability | Super thick paste instantly fills large gaps, cracks, and holes. | Varies by brand; many are thinner and better suited for smaller cosmetic cracks. |
| Durability & Finish | Flexible, watertight, rubberized barrier. Paintable once cured. Prevents rust/corrosion. | Finish and durability vary; some may crack or degrade with UV exposure or temperature changes. |
| Cost per use (16 Fl Oz) | ₹199 per fl oz | Local 300-500ml sealants typically range from ₹250-₹600, depending on brand and type. |
| Container Technology | Stay Fresh Container blocks air, locks in freshness, extends sealing power. | Standard containers; product may dry out or lose efficacy faster once opened. |
| SKU | wpr4695 |
| GTIN | 0850010226804 |
| Brand | Flex Paste |
| Color | Black |
| Item Form | Paste |
| Material | Rubber |
| Size | Half-Quart (473ml / 16 Fl Oz) |
| Weight | 0.531 kg (1.17 lbs) |
| Dimensions | 10.6 cm x 10.8 cm x 5.9 cm (4.25 in x 4.25 in x 2.5 in) |
| Number of Items | 1 |
| Country of Origin | Made in the USA |
About Flex Paste
Flex Paste is renowned for its innovative, super-thick rubberized sealant that works underwater and seals large gaps, offering robust repair solutions.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
Flex Paste Rubberized Waterproof Sealant Paste Black 473ml (16 Fl Oz) | Seals Gaps, Cracks, Holes Underwater
3,180
This item
Flex Paste Rubberized Waterproof Sealant Paste Black 473ml (16 Fl Oz) | Seals Gaps, Cracks, Holes Underwater
3,180
Total price:
10,560
You save 5,150 (33%) Extra3 items selected
3 items
10,560You save 5,150 (33%) Extra
| Attributes | Current |  |  |  |  | ||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 3,180 4,610 | 3,550 5,640 | 3,830 5,460 | 3,670 5,010 | 2,940 3,410 | 2,770 3,220 | 5,640 6,560 |
| Rating | 4.00(6,064) | 4.40(13K+) | 4.40(13K+) | 4.40(13K+) | 4.13(8) | 4.13(8) | 4.13(8) |
| Brand Name | Flex Paste | Flex Seal Liquid | Flex Seal Liquid | Flex Seal Liquid | GORILLA | GORILLA | GORILLA |
| Item Form | Paste | N/A | N/A | N/A | N/A | N/A | N/A |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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