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Hi Bond 701800 2-Part Pour Foam Kit - 2.5 Cu Ft Expansion

Manufacturer

Hi Bond

<h3>About Hi Bond: Marine-Grade Repair Products Built to Last</h3><p>Hi Bond is a trusted name in marine fiberglass and gel-coat repair, offering a focused lineup of products engineered for boat owners, marine technicians, and DIY enthusiasts who demand professional-grade results. Backed by the expertise of <strong>Evercoat</strong> — a Cincinnati, Ohio-based innovator in repair products since 1953 — Hi Bond brings decades of material science and hands-on repair knowledge to every product in its catalog.</p><p>Whether you're restoring the hull of a weekend cruiser or patching up a fiberglass deck that's seen one too many seasons on the water, Hi Bond gives you the right materials to do the job correctly. The brand's emphasis on quality raw materials and system-level compatibility means its products are designed to work together seamlessly, reducing the guesswork that often trips up even experienced repair technicians.</p><h3>Gel-Coat Repair: Restoring That Factory Finish</h3><p>The cornerstone of the Hi Bond lineup is its <a href="/12824-hi-bond-gel-coat-gel-coat-repair-kits-200489">Gel-Coat &amp; Gel-Coat Repair Kits</a>. Gel coat is the outermost layer of a fiberglass boat — the surface that takes the brunt of UV exposure, impact, and weathering. When it chips, cracks, or fades, restoring it properly requires matched chemistry and the right application technique. Hi Bond's gel-coat products are formulated to bond durably to existing fiberglass substrates, delivering a smooth, glossy finish that holds up to the harsh marine environment.</p><h3>Everything You Need for a Complete Repair</h3><p>A successful fiberglass repair is never just one product — it's a system. Hi Bond supports that system with a range of <a href="/12824-hi-bond-resin-additives-rollers-spreaders-etc-200866">Resin Additives, Rollers, Spreaders, and Related Tools</a> that help ensure proper resin wet-out, bubble-free lamination, and clean, even application. Having the right spreader or roller on hand can be the difference between a professional result and a repair that needs to be redone.</p><p>Equally important is proper viscosity control. Hi Bond's <a href="/12824-hi-bond-resin-reducer-200867">Resin Reducer</a> allows technicians and hobbyists to fine-tune resin consistency for specific applications and ambient conditions — a small but critical detail that significantly impacts cure quality and final appearance.</p><h3>Structural Integrity Below the Surface</h3><p>Beyond cosmetic repairs, Hi Bond also addresses structural marine concerns with its <a href="/12824-hi-bond-foam-sealantsflotation-200431">Foam Sealants and Flotation</a> products. Marine-grade foam sealants play a vital role in maintaining watertight integrity and, in some applications, contributing to a vessel's built-in buoyancy. These products are essential for anyone performing serious hull repairs or restoration work.</p><h3>Why Choose Hi Bond?</h3><ul style="list-style:disc"><li><strong>Marine-Specific Formulations:</strong> Products are designed for the unique demands of saltwater, freshwater, and UV-exposed marine environments.</li><li><strong>System Compatibility:</strong> Gel coats, resins, reducers, and tools are engineered to work together for consistent, predictable results.</li><li><strong>Backed by Experience:</strong> The Evercoat heritage means Hi Bond products reflect over 70 years of repair product innovation.</li><li><strong>Accessible for Professionals and DIYers:</strong> Clear instructions and a focused product range make Hi Bond approachable for boat owners at every skill level.</li></ul><p>From a surface scratch to a significant hull repair, Hi Bond delivers the materials and confidence to get the job done right — the first time.</p>

Part Number

701800
09/12/2036 4:35 AM
Sale Price

$106.93

In Stock (10+)

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Hi Bond 701800 is a professional-grade two-part liquid urethane closed cell pour foam system designed for marine and automotive flotation and insulation applications. This convenient quart-size kit provides reliable foam expansion for filling hulls, cavities, and voids.

Key Features:

  • Two-part closed cell urethane foam system for superior flotation and insulation
  • 1:1 mix ratio for easy, accurate mixing of components
  • Expands to 2.5 cubic feet from 2 quarts of liquid mixture
  • Resistant to gasoline, oil, and other petroleum products
  • Ideal for marine hull flotation, cavity filling, and thermal insulation
  • Quart kit size perfect for small to medium repair and installation projects

This closed cell foam system cures to a rigid, buoyant structure that won't absorb water or degrade when exposed to fuel and oil. Simply mix the two components at a 1:1 ratio and pour into the cavity to be filled. The foam will expand and cure to provide long-lasting flotation or insulation performance in boats, RVs, and other applications.

Products specifications

Displacement

2-1/2 cu. ft.

Size

2 Quarts

Quick, simple, and very smooth. Will come back agn

Good

straight forward order process, great price.

Quick and simple... Hope the product is also this great...

Easy purchase

the first 2 times I tried to check out, there were website errors. After that, though, it was smooth and easy. easy to find what i wanted. best price i saw anywhere!

Easy checkout and great price!

Good

Excellent.

smooth checkout/shopping cart

great and reliable

easy to order and fast response on shipping.

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