Fiberglass Supply Depot

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When purchasing a product, price is the consumer's primary concern. At present, Fiberglass Supply Depot has 118 products for sale. Fiberglass Supply Depot products range in price from $6.89 to $199.99, and the average price of all the products is about $54.91.

We found that most of the Fiberglass Supply Depot products are manufactured by Fiberglass Supply Depot Inc., HK Research Corporation, and Rexco. The manufacturers provide Fiberglass Supply Depot with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase Fiberglass Supply Depot products from the seller Fiberglass Supply Depot. The brand holds an average rating of 4.64, testifying to its excellent reputation.

Fiberglass Supply Depot Best Sellers

Last Updated: Jan 8, 2026

Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Urethane Adhesives

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Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

6LB. Density polyurethane flotation Foam 1 Gallon Kit; Consists of 1/2 gallon of Part A and 1/2 gallon of Part B and produces 1.5 cubic feet.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

The 6LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications

All expansion rates and times given are temperature critical. Temperatures below 75° F will lower the expansion rate therefore requiring more foam. Ideal working temperature is 75° to 80° F or above. Accurate measuring of these products is extremely critical. Working time before foaming: approx. 45 seconds Time before full expansion: approx. 5 minutes

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Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Urethane Adhesives

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Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

This expandable foam is recommended for void filling in nonstructural applications. It can be poured underneath decks and inside cavities where a lightweight flotation foam is needed to provide buoyancy.

2# Density polyurethane flotation Foam 1 Gallon Kit; Consists of 1/2 gallon of Part A and 1/2 gallon of Part B and produces 5 cubic feet.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

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Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (Quart Kit)

Urethane Adhesives

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Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

4LB. Density polyurethane flotation Foam Quart Kit; Consists of 1 pint of Part A and 1 pint of Part B and produces 1/2 cubic foot.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

The 4LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications

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Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Urethane Adhesives

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Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

4LB. Density polyurethane flotation Foam 1 Gallon Kit; Consists of 1/2 gallon of Part A and 1/2 gallon of Part B and produces 2 cubic feet.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

The 4LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications

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Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (2 Gallon Kit)

Craft Foam

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Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

4LB. Density polyurethane flotation Foam 2 Gallon Kit; Consists of 1 gallon of Part A and 1 gallon of Part B and produces 4 cubic feet.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

The 4LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications.

All expansion rates and times given are temperature critical. Temperatures below 75° F will lower the expansion rate therefore requiring more foam. Ideal working temperature is 75° to 80° F or above. Accurate measuring of these products is extremely critical. Working time before foaming approx. 45 seconds Time before full expansion: approx. 5 minutes

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Fiberglass Supply Depot Clear Gelcoat Without Wax – UV-Resistant Marine Gelcoat for Interior & Exterior Use – Quart Kit with 15cc MEKP Hardener

Car Clear Coats

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DURABLE CLEAR ISO GELCOAT FOR FIBERGLASS & COMPOSITES Clear gelcoat forms a tough, protective surface over fiberglass and composite parts, helping protect against moisture, UV exposure, and common chemicals while delivering a smooth, glossy finish.

NO-WAX FORMULA FOR PROPER LAYER BONDING This no-wax gelcoat cures with a tacky surface, allowing additional fiberglass layers or coatings to bond without sanding. Ideal for mold making, laminations, and multi-layer composite work.

VERSATILE MARINE, AUTOMOTIVE & GENERAL USE Commonly used on boats, showers, tubs, automotive fiberglass parts, and custom composite projects. Can also be used as a clear base for adding pigments, metallic flakes, or decorative finishes.

SMOOTH APPLICATION & FINISH Applies easily by spray or hand lay-up with minimal surface preparation. Once cured, the surface can be sanded, buffed, or top-coated depending on the final finish required.

CATALYST-CURED WITH MEKP – READY FOR USE Designed to be mixed with MEKP catalyst to initiate curing, forming a hard, durable plastic layer. Available in no-wax or waxed versions depending on whether a tacky or tack-free cure is desired. ( wax sold separately)

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Fiberglass Supply Depot White Gelcoat with Wax Interior or Exterior - Gallon with 60cc Hardener (MEKP)

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Exterior NPG/ISOPHTHALIC Grafted Polymer Backbone

White, Comes with Hardener, Measuring Cup and MEK P Catalyst Chart

1 Gallon covers approximately 100 square feet Exceptionally easy patch & repair properties, user-friendly application properties

Good water and blister resistance High strength and hardness & 5.5-6.5% elongation in tensile ( i.e. No more cracking!)

High-viscosity has great coverage. Compatible with pigments made specially for polyester resin or gelcoat.

Fiberglass Supply Depot Partall Film #10 - PVA Polyvinyl Alcohol Pint

Mold Release

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release wax

Green PVA

Rinses off with water.

Creates a thin film on part

Fiberglass Supply Depot White Gelcoat NO Wax Interior or Exterior - Gallon with 60cc Hardener (MEKP)

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Exterior NPG/ISOPHTHALIC GRAFTED POLYMER BACKBONE

White, Comes with Hardener, Measuring Cup and MEK P Catalyst Chart

LOW STYRENE (HAP) LEVEL - LESS THAN 29% - MEETS ALL CURRENT EPA MACT REGULATIONS

GOOD WATER AND BLISTER RESISTANCE FORMULATED INTO HIGH PERFORMANCE

EXCEPTIONALLY EASY PATCH & REPAIR PROPERTIES, USER-FRIENDLY APPLICATION PROPERTIES

Fiberglass Supply Depot Inc. Styrene Monomer Thinner for Gelcoat and Polyester Resin Pint

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PURE STYRENE MONOMER THINNER – Designed specifically for thinning polyester resin and gelcoat to achieve proper viscosity, flow, and workability during application.

RESTORES SPRAYABLE CONSISTENCY – Ideal for reducing gelcoat thickness for spray applications, improving atomization, leveling, and surface finish without compromising cure performance.

COMPATIBLE WITH POLYESTER SYSTEMS – Formulated for use with polyester resin, gelcoat, tooling gelcoat, and laminating systems commonly used in marine, automotive, and industrial composites.

PROFESSIONAL COMPOSITE APPLICATIONS – Commonly used in boat repair, mold making, fiberglass fabrication, and surface coating where precise resin control is required.

CONVENIENT PINT SIZE – Easy-to-measure pint container allows controlled additions for accurate mixing and minimal waste; intended for experienced users familiar with composite materials.

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Fiberglass Supply Depot 6LB Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (Quart Kit)

Urethane Adhesives

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Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

6LB. Density polyurethane flotation Foam 1 Quart Kit; Consists of 1 Pint of Part A and 1 Pint of Part B and produces 0.375 cubic feet.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

The 6LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications

Read more Read less

Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (Quart Kit)

Urethane Adhesives

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Flotation Foam is a polyurethane 2 part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.

2# Density polyurethane flotation Foam Quart Kit; Consists of 1 pint of Part A and 1 pint of Part B and produces 1.25 cubic feet.

Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.

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Fiberglass Supply Depot PARTALL® Paste #2 Mold Release Wax -12oz can

Mold Release

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PARTALL Paste #2 may also be employed as an inexpensive edge wax on larger molds and may be used to seal rough wood molds or plugs for casting composites, cements, and grouts

Partall Paste #2, the original green wax, is an economical paste wax mold release formulated with hydrocarbon and microcrystalline waxes.

PARTALL Paste #2 is a general-purpose polishing compound made from a blend of hydrocarbon and microcrystalline waxes that is designed for use with thermoset molding resins at ambient temperature cure when making fiberglass, cast polymer, or composites parts.

Great mold release wax for custom parts such as fiberglass, river tables, and tabletops.

Comes in a 12oz metal can. Note: Does not come with wax applicator pad.

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Fiberglass Supply Depot Fiberglass Cloth 6 Ounce by 60 Inches Wide - 20 Yards Rolled- 300 sq/ft for Boat and Pool Repair

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This fiberglass cloth is a flexible fabric that wets-out transparently and is well suited to a wide range of lightweight, general purpose applications including laminating, reinforcing and sheathing / waterproofing.

Provides Uniform Strength Horizontally and Vertically This six ounce cloth is 3.9 mils thick

Compatible with Epoxy, Polyester and Vinylester Resin

Often Used on Surfboards, Sailboats and Cedar Strip Canoes

This 6 oz. cloth is the standard “E” glass volan-finished boat cloth Style 3733

Fiberglass Supply Depot Cabosil Fumed Silica (4oz Jar) - Resin Thickener for Non-Saggy Putty - Advanced Epoxy Resin Thickener - Professional Thixotropic Agent for Smooth Epoxy

Tile Epoxy Adhesives

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Optimal Solution: Fiberglass Supply Depot Inc.'s colloidal silica is a must-have product for those of you who want to work with smooth, non-saggy epoxy resin. This product acts as a premium thixotropic agent that allows you to control the viscosity of mixed epoxy systems.

Easy to Use: This epoxy thickener is designed to be used alone for a smooth and non-sagging high-strength mixture. Additionally, it can also be combined with fillers or fibers to prevent them from sagging.

Designed for Resin: This fumed silica is formulated to provide sag resistance, as well as anti-settling and anti-corrosive performance. Our colloidal silica ensures high shelf stability and mechanical reinforcement in epoxy coatings.

Small Size: Our fumed silica comes in a 4oz package and can be mixed with other fillers to create custom blends. Cabosil can be added to any type of resin mix and simply stirred by hand.

Technical Features: This Cabosil filler may be synthesized by high temperature hydrolysis of SiCl4 in O2(N2)/H2 flame. The formula is amorphous and it possesses a very high specific area. The microdroplets of amorphous silica fuse into a branch and form a chain-like agglomerate, which helps to thicken the resin mixture.

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Fiberglass Supply Depot Fiberglass Chopped Strand Mat 1.5 Oz. - 3 Yards X 50" Wide (37.5sq/ft) for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins

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Use for "print through" barrier between gelcoat and woven

Use as a bond layer between biaxle and woven

Uniform Strength and stiffness in all directions

Conforms to mold details without getting air

Use about 3 quarts of resin to wet out

Fiberglass Supply Depot Premium DCPD ISO Blend Polyester Resin with MEKP Hardener – Marine & Automotive Laminating Resin for Fiberglass Mat, Biaxial & Cloth (Gallon)

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Marine & Automotive Formulation: DCPD ISO blend polyester resin engineered for demanding marine and automotive applications, offering improved toughness, durability, and surface quality over standard polyester resins.

Low Shrinkage & Reduced Print-Through: DCPD chemistry minimizes shrinkage and exotherm, helping reduce fiber print-through and distortion in boat hulls, panels, and automotive body parts.

Excellent Wet-Out & Lamination Strength: Optimized viscosity provides fast, even wet-out of fiberglass mat, cloth, and woven roving for strong, consistent laminates and structural repairs.

Moisture & Chemical Resistance: ISO blend resin delivers enhanced resistance to water, fuels, oils, and chemicals—ideal for marine environments and under-hood or exterior automotive components.

Versatile & Easy to Use: Compatible with standard MEKP catalysts and fiberglass reinforcements; suitable for boat building, fiberglass repairs, molds, automotive panels, and composite fabrication.

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Fiberglass Supply Depot Mek Peroxide Catalyst 4oz Clear

Commercial All-Purpose Cleaners

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Mek Peroxide is used as a activator for Gelcoat, polyester, and vinylester resins.

4oz bottle is enough for approximately 4 gallons of resin. Cannot be used by itself must be used with resins

Comes in clear easy to use bottle

Mek P catalyst chart and measuring cup is included

Creates chemical reaction with resin for curing

Fiberglass Supply Depot White Gelcoat with Wax – UV-Resistant Marine Gelcoat for Interior & Exterior Use – Quart Kit with 15cc MEKP Hardener

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PROFESSIONAL-GRADE POLYESTER GELCOAT FOR MARINE & COMPOSITES Formulated for durability and long-lasting performance, this marine-grade polyester gelcoat is ideal for cosmetic repairs, hull finishes, mold layups, and exterior composite surfaces on boats, RVs, motorcycles, and other fiberglass projects.

DESIGNED FOR COSMETIC REPAIRS & CUSTOM COLOR MATCHING White gelcoat can be tinted with compatible gelcoat or polyester colorants to match existing finishes. Add pigments before introducing MEKP catalyst for consistent color results, from light pastel tones to deeper custom shades.

EASY APPLICATION BY BRUSH, ROLLER, OR SPRAY Thick, non-sag formula delivers excellent coverage and control during application. Offers a workable pot life of approximately 20–25 minutes at 77°F and cures to a surface that sands, buffs, and polishes smoothly to a high-gloss finish.

SELECT THE CORRECT GELCOAT FOR YOUR APPLICATION Use gelcoat without wax for initial polyester resin layups or mold surfaces. Choose gelcoat with wax for final coats when a tack-free cure is required. If thinning is needed, use styrene only and follow recommended ratios.

AVAILABLE OPTIONS, SIZES & COVERAGE DETAILS Offered in white, with or without wax depending on application needs. White gelcoat is available in pint, quart and gallon sizes; Includes MEKP catalyst. Approximate coverage: 12.8 sq ft/gal at 1/8", 25.7 sq ft at 1/16", and 51.3 sq ft at 1/32".

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Fiberglass Supply Depot Wood Flour Filler Gallon

Wood Filler

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Works Great When Mixing with Epoxy

Light Brown Color

Fine Flour Consistency

Comes in Gallon Jug With Reclosable Top

Fiberglass Supply Depot FAQs

Is Fiberglass Supply Depot Legit?

Yes, Fiberglass Supply Depot is a legitmate brand on Amazon. After conducting a comprehensive analysis of 188 customer reviews for Fiberglass Supply Depot products on Amazon, we have determined its average rating. With a strong performance and good quality, Fiberglass Supply Depot has received an average rating of 4.64 from numerous buyers, indicating that Fiberglass Supply Depot are trustworthy and live up to their claims. Therefore, it is safe to make purchases from Fiberglass Supply Depot on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more Fiberglass Supply Depot products?

If you're interested in Fiberglass Supply Depot and want to find more Fiberglass Supply Depot products, you can follow the steps below:

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How does findthisbest choose the top Fiberglass Supply Depot products?

We analyze millions of Fiberglass Supply Depot products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

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Go to the Fiberglass Supply Depot page.
Select the product you want in the Fiberglass Supply Depot buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product Fiberglass Supply Depot 6 Lb. Density Expanding Po..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the Fiberglass Supply Depot products?

Most of the Fiberglass Supply Depot products are produced by Fiberglass Supply Depot Inc., HK Research Corporation, and Rexco. The manufacturers provide Fiberglass Supply Depot with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the Fiberglass Supply Depot products, helping you make more informed buying decisions. We recommend best choices of the products from the Fiberglass Supply Depot brand, helping you make better shopping choices with less time and energy.