--- product_id: 88251769 title: "105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items)" brand: "west system" price: "$547.64" currency: USD in_stock: true reviews_count: 8 category: "West System" url: https://www.desertcart.us/products/88251769-105b-epoxy-resin-126-6-fl-oz-bundle-with-205b store_origin: US region: United States of America --- # 5:1 resin-to-hardener ratio 9-12 min pot life 7832 PSI tensile strength 105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) **Brand:** west system **Price:** $547.64 **Availability:** ✅ In Stock ## Summary > 🛠️ Mix it right, cure it fast, build it strong—epoxy mastery in a pump! ## Quick Answers - **What is this?** 105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) by west system - **How much does it cost?** $547.64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/88251769-105b-epoxy-resin-126-6-fl-oz-bundle-with-205b) ## Best For - west system enthusiasts ## Why This Product - Trusted west system brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid Cure, Ready to Go:** Fast hardener accelerates bonding even at lower temps, so your projects don’t wait. - • **Precision Pumping System:** Calibrated mini pumps deliver the perfect 5:1 resin-to-hardener mix every time—no guesswork, no waste. - • **Low-VOC, Low-Odor Formula:** Work comfortably with a high flash point and no solvent smell—safer and cleaner than traditional resins. - • **Customizable for Every Project:** Easily modified with fillers and pigments to tailor your epoxy for boat repair, kayak building, or specialty crafts. - • **Superior Strength & Versatility:** Cures to a tough, durable plastic with 7832 PSI tensile strength, bonding wood, fiberglass, and metals flawlessly. ## Overview The WEST SYSTEM 105B Epoxy Resin Bundle includes 126.6 fl oz of low-viscosity resin, 27.5 fl oz of fast-curing 205B hardener, and a set of calibrated mini pumps ensuring a precise 5:1 mix ratio. It cures rapidly at room temperature with a pot life of 9-12 minutes and reaches full strength in 1-4 days, delivering a tensile strength of 7832 PSI. This low-odor, low-VOC epoxy is ideal for bonding wood, fiberglass, and metals, and is easily customized with fillers and pigments for a wide range of professional and DIY applications. ## Description Product description Popular Uses of WEST SYSTEM Epoxy Bonding & Filleting WEST SYSTEM Epoxy is excellent for structural bonding and fillets. It can be easily thickened with a number of fillers to modify consistency and strength. There are two types of structural bonding that can be done with epoxy. TWO-STEP BONDING is the preferred method for most situations because it promotes maximum epoxy penetration into the bonding surface and prevents epoxy-starved joints. SINGLE-STEP BONDING is appropriate when joints will have minimal loads and excess epoxy absorption into porous surfaces is not a problem. In both cases, epoxy bonds best when it is worked into the surface with a roller or brush. Coating, Laminating & Clear Finishing COATING AND LAMINATING are popular uses of WEST SYSTEM Epoxy. Epoxy wets out fiberglass cloth, protecting the substrate while letting its beauty shine through. We recommend WEST SYSTEM 105 Resin with blush-free, water-clear 207 Special Clear Hardener for bright finishes and clear coats. COATING involves rolling the epoxy onto a surface with a foam roller, applying it with a brush, or spreading the epoxy over the surfaces with a plastic spreader. . There are two methods for laminating with fiberglass and epoxy. THE DRY METHOD refers to placing the cloth over a dry surface, wetting the cloth with epoxy and spreading the epoxy over the cloth, smoothing it as you go. THE WET METHOD involves applying the cloth to an epoxy-coated surface after the wet-out coat becomes tacky, which helps it cling to vertical or overhead surfaces. This method makes it more difficult to position the cloth, so the dry method is the preferred, especially when using with thinner cloth. Clear Casting & Pouring CASTING AND POURING are best done with WEST SYSTEM 105 Resin and 207 Special Clear Hardener. AVOIDING UNCONTROLLED EXOTHERM is important, as this heat reaction can quickly spoil the casting. Epoxy cures by exothermic (heat) reaction. That heat must be kept under control when when creating a thick casting (greater than ¼”). For thick castings, add epoxy in multiple layers . When the first pour is tacky like the back of masking tape, a second pour can be made. When the epoxy cures enough to become tacky, it means the previous layer has begun to cool down and will not contribute heat to the next layer. Adding another layer at this stage allows you to skip any surface prep. If the poured epoxy casting cures past the tacky stage, allow the epoxy to finish curing then sand ot dull and clean the surface before applying the next epoxy layer. This will ensure good adhesion between layers. Versatile, reliable WEST SYSTEM products WEST SYSTEM offers high-quality epoxy resins, hardeners, fillers, and additives. Developed by our in-house chemists, our formulations are proprietary, structural, and marine grade. These epoxies have set the standard for epoxy quality in the marine industry and beyond since 1969. Versatile WEST SYSTEM Epoxy meet the highest standards for reliability, consistency, and product support. Fiberglass Boat Repairs & Construction This vintage 15' Larson Thunderhawk was repaired with WEST SYSTEM Epoxy. Damage from collisions, groundings, the forces of nature, and aging make it common for fiberglass boats to need repairs. Effectively repairing a fiberglass boat requires a superior structural adhesive, that adheres to polyester resin, fiberglass, wood, metal and other materials. Unlike polyester resin which can shrink from 5% to 8%, creating stress concentrations at the repair joint, epoxy doesn’t shrink. It's also a more effective moisture barrier. Epoxy forms a tenacious mechanical bond with cured polyester and other materials in secondary bonding. Since epoxy is more durable than polyester, the epoxy repair may be even stronger than the original structure. Ease of use, ready availability, safety, and easy access to how-to information makes WEST SYSTEM Epoxy excellent for fiberglass boat repair. Wooden Boat Construction & Repairs This strip canoe was built with WEST SYSTEM Epoxy. Wood is the primary building material for many of today’s most durable and most beautiful boats, whether canoes, kayaks, dories, sailboats or power boats. Many of the wood/epoxy construction techniques that have made modern wooden boats so successful can also be applied to the repair of older wooden boats with excellent results. Gougeon Brothers, Inc., the company that has been formulating and manufacturing WEST SYSTEM Epoxies since 1969. They pioneered the use of epoxy to enhance wood's natural structural properties. Ease of use, ready availability, safety and easy access to instructional materials makes WEST SYSTEM Epoxy a great choice for wooden boat construction and repairs. Furniture & Crafts The Eat a Peach Tribute Guitar using marquetry skills and WEST SYSTEM Epoxy. Whether you're creating a river table, casting jewelry and works of art, making high-end knives, repairing sporting equipment, creating sculptures for public spaces, designing cosplay props, or building or repairing musical instruments, WEST SYSTEM Epoxy is versatile and reliable. Woodworkers and creators of all kinds depend on WEST SYSTEM Epoxy. Home Repairs & Improvements The detail work on this Victorian home was repaired with WEST SYSTEM Epoxy. Homeowners rely on WEST SYSTEM Epoxy because it's versatile, reliable, readily available, consistent, and offers excellent instructional materials. WEST SYSTEM customers have used it to create spiral staircases, grand entry columns, and cherry wood basins. They've used it to build fences, trellises, and planter boxes, and neighborhood mini-libraries that can withstand decades outdoors. And to repair everything from porches and wooden window sashes to fiberglass tub and shower surfaces. Ease of use, ready availability, safety, and easy access to how-to information makes WEST SYSTEM Epoxy an ideal adhesive and coating for lasting home repairs. WEST SYSTEM Product Selection Guide How to choose the right WEST SYSTEM Epoxy products for your project 1. Start with 105 Epoxy Resin, the basic ingredient of all WEST SYSTEM Epoxy compounds. Use 300 Mini Pumps for convenient and accurate metering. 2. Mix with one of four WEST SYSTEM hardeners. Select a hardener for its intended use and for the cure speed best suited for your job in the temperature range in which you are working. 3. Add one of six WEST SYSTEM fillers to thicken the mixture as needed. Select a filler for its handling characteristics or cured physical properties. Or, add WEST SYSTEM additives to provide specific coating properties. WEST SYSTEM pigments can be used to change the epoxy's color. An ISO 9001:2015 certified company Founded in 1969, Gougeon Brothers, Inc. (GBI) formulates and manufactures WEST SYSTEM products. In 2020, NSF International recertified GBI's ISO 9001:2015 status, which ensures consistency in epoxy formulation, production, packaging, and instructional materials. Review: Great Product at a Fair Price - The product is something that I have used for years and like very much. I will comment on something that others have noted in their reviews. The packaging was not up to the job of protecting the cans. Fortunately my order was only slightly damaged. I remember reading the reviews prior to purchasing from this vendor and reading the horror stories about badly damaged shipments. I was on the verge of not buying and moving on but decided to take a chance. I wonder how many sales are lost because of reviews mentioning shipping damage. Also, the poor reviews are consistent and go back a long way. So why does the poor packaging continue? Review: Works perfect. - Awesome product. West systems is always my go to for epoxy pours over my woodwork or into it. When I was a beginner I tried a different brand, a couple actually, but I could never quite get the mixture exact. This system comes with pumps that CAN stay in the cans. Haven’t had a bad mix yet, not saying it can’t happen, but if it does it’ll be on me and not the epoxy. I’m not taking away from the others. They are good products, they just require a couple of separate purchases such as a scale or measurement tools that I personally was hit or miss with. If you’re new to epoxy you really can’t go wrong with these guys. ## Features - CONVENIENT EPOXY BUNDLE contains one can of WEST SYSTEM 105-B Resin (126.6 fl oz), WEST SYSTEM 205-B Fast Hardener (27.5 fl oz), and one set of calibrated 300 Mini Pumps. 205 Fast Hardener is a medium-viscosity epoxy curing agent. It is useful in a majority of bonding situations, and at lower temperatures. 205 Fast Hardener produces a rapid epoxy cure that develops physical properties quickly at room temperature. - 105 EPOXY RESIN is a clear, pale yellow, low-viscosity liquid epoxy resin. Blended with 205 Fast Hardener at a 5:1 ratio, it cures to a hard, solid plastic with superior physical properties. It will wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. (205 Fast Hardener is not intended for clear coating.) - POT LIFE AT 72°F (22°C) is 9 to 12 minutes. Cures to a solid state in 6 to 8 hours. Cures to maximum strength in 1 to 4 days. Minimum recommended working temperature is 40°F (4°C). Does not contain VOCs and has relatively high flash point and no solvent odor, making it much friendlier to use than styrenated resins. - EXCELLENT FOR COATNG OR BONDING, this epoxy is easily modified with WEST SYSTEM fillers, pigments, and additives to suit an enormous variety of construction and repair projects, including fiberglass boat repair, strip kayak and canoe construction. Resin viscosity is approximately 1000 centipoise at 72°F (22°C) - INCLUDES CALIBRATED PUMPS that dispense 105 Resin & 205 Fast Hardener at the correct 5-part resin to 1-part hardener mix ratio. One pump stroke of resin for each one pump stroke of hardener yields 0.8 fl oz of the exact 5:1 epoxy mix ratio. These durable polypropylene pumps provide years of dependable service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JKYCV8G | | Best Sellers Rank | #42,246 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #46 in Boat Painting Supplies | | Brand | West System | | Brand Name | West System | | Color | Pale Yellow | | Compatible Material | Concrete, Fiberglass, Metal, Wood | | Container Type | Can | | Customer Reviews | 4.7 out of 5 stars 371 Reviews | | Full Cure Time | 3 Days | | Included Components | Resin, Fast Hardener, Pumps | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Type Name | Epoxy Bundle | | Item Weight | 16 ounces | | Manufacturer | West System | | Material | Dispensing Pumps, Epoxy Resin , Fast Epoxy Hardener | | Material Type | Dispensing Pumps, Epoxy Resin, Fast Epoxy Hardener | | Model | 105B | | Number of Pieces | 300 | | Other Special Features of the Product | Versatility of use, high-strength bonds, easy mixing with included pumps | | Part Number | 105B-WESTSYSTEM_K1 | | Special Feature | Versatility of use, high-strength bonds, easy mixing with included pumps | | Specific Uses For Product | Carpentry, Casting, Countertop, Flooring, Furniture, Repair, Wall Repair, Woodworking | | Tensile Strength | 7832 Pounds Per Square Inch | | UPC | 657379079856 | | Unit Count | 154.1 Fluid Ounces | | Viscosity Level | Low to Medium | | Volume | 3740 Milliliters | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** West System - **Item Form:** Liquid - **Material:** Dispensing Pumps, Epoxy Resin, Fast Epoxy Hardener - **Special Feature:** Versatility of use, high-strength bonds, easy mixing with included pumps - **Specific Uses For Product:** Carpentry, Casting, Countertop, Flooring, Furniture, Repair, Wall Repair, Woodworking ## Images ![105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) - Image 1](https://m.media-amazon.com/images/I/8109RbGnsLL.jpg) ![105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) - Image 2](https://m.media-amazon.com/images/I/71BdYKlZliL.jpg) ![105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) - Image 3](https://m.media-amazon.com/images/I/71zNxJWAF0L.jpg) ![105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) - Image 4](https://m.media-amazon.com/images/I/81wSZJU9tRL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can you recommend pigment for woodworking?** A: I haven’t tried any pigments but I do use saw dust mixed in with it occasionally **Q: About how many square ft. (plywood) would this product cover?** A: I can't tell you about plywood because I used it on red cedar and cherry wood. I covered 120 Sq. feet over fiberglass over cedar which is very absorbent. I used one can and got three coats of coverage. You should get more because plywood isn't as absorbent. Great product, has long shelf life! Hope this helps Good Luck. Capt. George **Q: How thick is the solution just after it has been mixed? Is it similar to thick syrup or runny like water?** A: The mixed epoxy is syrup like. It Wil tend to sag & or run on a vertical surface if applied to thickly. I tried brushing, rolling and spraying for the final few layers of exoxy **Q: can you use this for molds, crafts?** A: You can but it’s not crystal clear. It builds up in my mixing cup over time and has a yellow color to it when thick like that. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product at a Fair Price *by M***H on December 29, 2024* The product is something that I have used for years and like very much. I will comment on something that others have noted in their reviews. The packaging was not up to the job of protecting the cans. Fortunately my order was only slightly damaged. I remember reading the reviews prior to purchasing from this vendor and reading the horror stories about badly damaged shipments. I was on the verge of not buying and moving on but decided to take a chance. I wonder how many sales are lost because of reviews mentioning shipping damage. Also, the poor reviews are consistent and go back a long way. So why does the poor packaging continue? ### ⭐⭐⭐⭐⭐ Works perfect. *by K***H on February 26, 2020* Awesome product. West systems is always my go to for epoxy pours over my woodwork or into it. When I was a beginner I tried a different brand, a couple actually, but I could never quite get the mixture exact. This system comes with pumps that CAN stay in the cans. Haven’t had a bad mix yet, not saying it can’t happen, but if it does it’ll be on me and not the epoxy. I’m not taking away from the others. They are good products, they just require a couple of separate purchases such as a scale or measurement tools that I personally was hit or miss with. If you’re new to epoxy you really can’t go wrong with these guys. ### ⭐⭐⭐⭐⭐ Not just for boats - I used it to fix big pond liner *by K***R on April 23, 2026* I just repaired a big ornamental pond liner with this resin and fiberglass cloth. I absolutely love the pump feature of the resin and especially the hardener. The pump for the hardener is sized to give you exactly the right amount of hardener for a given amount of resin. Five squirts of resin? Use five squirts of hardener. Easy-Peasy - never too much or too little hardener. It's been two months now, and my pond doesn't leak, and this resin kit made my job easier. ## Frequently Bought Together - WEST SYSTEM 105B Epoxy Resin (126.6 fl oz) Bundle with 205B Fast Epoxy Hardener (27.5 fl oz) and 300 Mini Pumps Epoxy Metering 3-Pack Pump Set (3 Items) - WEST SYSTEM 404-45 High Density Filler 46oz. - West System 406-7 Collodial Silica 5.5oz, off-white --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/88251769-105b-epoxy-resin-126-6-fl-oz-bundle-with-205b](https://www.desertcart.us/products/88251769-105b-epoxy-resin-126-6-fl-oz-bundle-with-205b) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-09*