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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.
E.R.
Reviewed in the United States on January 7, 2025
We systems makes an excellent product. There are several hardeners, to go with their 105 epoxy resin.Choose the right Harder, for your application. The epoxy can be readily mixed with mill glass to increase structural strength of parts and also increase viscosity. It can also be mixed with micro balloons to increase viscosity. Work with it as you wish.
Randy W.
Reviewed in the United States on February 17, 2024
The West System is by far the best epoxy on the market to date!Easy to use!No mass.Simple to mix by pump!Use 205-A (Fast Hardener) or (206 Slow Hardener)I have been using it for 25 years and never had a problem with it!Great Epoxy!
Customer
Reviewed in the United States on September 22, 2023
West System a great Fiberglass product , very strong and durable.System quite Expensive top use a lot.Was used to join / repair hardboard facia panels.
michael e maimone
Reviewed in the United States on December 3, 2023
West system products worked very well. Easy to mix and apply with use of measuring hand pump, and syringe. Used to harden soft spots on RV floor. Make sure your holes are NOT drilled completely through the floor, or product will just run through. This product has a thin viscosity in order to inject where needed. Takes time to harden. Starts to harden within about 10-15 minutes. Oder is minimal which was a great surprise. Still used in well ventilated area.
Maren Dunlap
Reviewed in the United States on May 1, 2022
The hardener is needed to make the epoxy set.
Stan V.
Reviewed in the United States on April 28, 2021
This was my first time using West System epoxy. I bought this along with the kit with the 204A hardener. The 205 hardener worked great with plenty of working time for some butcher block waterfall counter tops I was assembling. Thick enough to address some minor gaping issues yet thin enough to squeeze out properly for a great wood joint. I've use the hardware store epoxies or small bottle epoxies for many years and finally bit the bullet for West System. More expensive upfront but much cheaper overall. It is so much more convenient. The pumps are quick and so much more accurate for ensuring a proper cure. I highly recommend this product.
Customer
Reviewed in the United States on March 3, 2020
I use West System epoxy often, but finding it retail has been challenging in my area. Same product but so much more convenient with better price..
Charles Ayer
Reviewed in Canada on May 13, 2019
Great product
yak
Reviewed in the United States on February 15, 2019
I have been using West System epoxy for a wide variety of woodworking and handyman applications for over 15 years. It always has given me the quality and dependable results that I want. Occasionally I have tried other brands, especially when they have "special" pricing. But I always come back to West System - those other brands I tried just seem to have more variation in cure times, ease of application and results.
Customer
Reviewed in Canada on April 22, 2019
Excellent product! Shipped very fast.
minabou
Reviewed in Canada on April 8, 2018
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