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| SKU | zgr2226 |
| GTIN | 0850010226811 |
| Brand | Flex Paste |
| Color | Black |
| Size | Quart (48 fl oz / 1.42 L) |
| Item Form | Paste |
| Material | Rubber |
| Weight | 3 lb (1.36 kg) |
| Dimensions | 4.25 x 4.25 x 5 inches (10.7 x 12.3 x 10.5 cm) |
| Country of Origin | Made in the USA |
This item:
Flex Paste Rubberized Waterproof Sealant Paste Black 48 fl oz (1.42 L) | Seals Gaps Cracks Holes Underwater
5,722
This item
Flex Paste Rubberized Waterproof Sealant Paste Black 48 fl oz (1.42 L) | Seals Gaps Cracks Holes Underwater
5,722
Total price:
13,455
You save 3,646 (21%) Extra3 items selected
3 items
13,455You save 3,646 (21%) Extra
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Seal Any Leak, Anywhere, Instantly.
Flex Paste is a super thick, black, rubberized sealant designed for robust sealing and protection. It penetrates surfaces to block air, water, and moisture, transforming into a flexible, watertight barrier. This paste clings effectively, instantly filling large gaps, cracks, and holes, making it ideal for diverse repair needs.
This unique sealant can be applied underwater and even dries underwater, offering unparalleled versatility. Once fully cured, Flex Paste is fully paintable, allowing seamless integration with your project's aesthetic. It also provides UV resistance and helps prevent rust and corrosion, ensuring long-lasting protection for various materials.
Ideal for Indian conditions, Flex Paste is excellent for filling cracks and holes in foundations, concrete, roofs, and RVs. It effectively seals out rodents and pests, and is suitable for bath and shower repairs, indoor/outdoor projects, automotive, marine, and lawn/garden applications. All customs duties and GST are included in the listed price, with ExpressBox tracked delivery.
Unmatched Sealing Power for Any Project
Flex Paste offers superior sealing capabilities, forming a strong, flexible, watertight, rubberized barrier that penetrates deep to seal out air, water, and moisture. Its unique ability to be applied and cure underwater makes it ideal for challenging repairs. Unlike standard sealants, its super-thick paste consistency clings instantly to surfaces, filling large gaps, cracks, and holes without sagging. Once dry, it's fully paintable and UV resistant, preventing rust and corrosion. This product is engineered for extreme durability and performance across a wide range of applications, from home repairs to automotive and marine projects.
Who It's For & Who Should Skip It
This sealant is perfect for DIY enthusiasts, homeowners, and professionals tackling leaks, cracks, and holes in concrete, roofs, RVs, boats, and more. It's ideal for sealing out pests and moisture in humid Indian conditions. Skip if you need a flexible sealant for very fine, hairline cracks (a thinner bead might be needed) or if you require a sealant that remains permanently flexible without any curing time. For extremely high-pressure water systems, consult specific industrial-grade products.
Typical situations where Flex Paste Rubberized Waterproof Sealant Paste Black 48 fl oz (1.42 L) | Seals Gaps Cracks Holes Underwater helps — illustrative scenarios, not customer reviews.
Repairing a leaking roof during monsoon season in Kerala.
Flex Paste's ability to apply and cure underwater makes it perfect for immediate roof leak repairs, even during heavy rain, preventing further water damage.
Sealing large cracks in a concrete foundation exposed to humid coastal air.
The super-thick, rubberized paste instantly fills large cracks, forming a watertight and UV-resistant barrier that prevents moisture ingress and protects against corrosion.
| Base Type | Rubberized Paste |
| Key Feature | Waterproof, Paintable, UV Resistant, Works Underwater |
| Allergens | Not specified by manufacturer |
| Directions | Apply directly from the container to fill gaps, cracks, and holes. Ensure surface is clean. Can be applied underwater. Allow to fully cure before painting. Refer to product label for detailed application instructions. |
| Coverage | Coats, seals, and protects surfaces, filling large areas. Specific coverage area varies by application thickness. |
| Curing Time | Dries to touch in approximately 24 hours, fully cures over time. Can be painted once fully cured. |
| Cost per use | 1.42 L (48 fl oz) tube at 100g/day = ~42 days of heavy use — ₹136 per day |
| Shelf life after opening | 12 months (category default for sealants) |
| Reapplication math | 1.42 L tube lasts approximately 42 days for heavy-duty repairs at 100g/day usage. |
| Contraindications | Not recommended for very fine hairline cracks without proper application technique. Avoid prolonged contact with skin without gloves. |
| Feature | Flex Paste Rubberized | Others |
|---|---|---|
| Formulation | Super thick, rubberized paste; applies and cures underwater; paintable; UV resistant. | Varies by brand; typically silicone, acrylic, or polyurethane-based. May require dry application and have limited UV resistance or paintability. |
| Application Versatility | Works underwater; clings instantly to fill large gaps, cracks, and holes. | Most require dry surfaces; may sag on vertical applications or large gaps; often need multiple coats. |
| Durability | Watertight, flexible, rubberized barrier; prevents rust/corrosion. | Durability varies; some may become brittle over time or degrade under UV exposure. |
| Cost per use | 1.42 L (48 fl oz) tube — ₹136 per day | Local 500ml tubes range from ₹300-700, offering a higher cost per application for similar coverage. |
| Finish | Paintable once cured; available in black. |
About Flex Paste
Flex Paste is renowned for its innovative, high-performance sealants that offer unparalleled strength and versatility for DIY and professional repairs.
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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| Attributes | Current |  |  |  |  | ||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price |
| EPA Registration Number | 5383-151 |
| Some are paintable, others are clear or colored; finish quality varies. |
2,425 3,500 |
5,308 5,456 |
2,779 4,422 |
5,267 5,318 |
2,878 4,113 |
2,883 3,918 |
| Rating | 4.00(6,064) | 4.00(6,064) | 4.00(6,064) | 4.40(13K+) | 4.40(13K+) | 4.40(13K+) | 4.40(13K+) |
| Brand Name | Flex Paste | Flex Paste | Flex Paste | Flex Seal Liquid | Flex Seal Liquid | Flex Seal Liquid | Flex Seal Liquid |
| 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 |
