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Product Details
WEST SYSTEM 105 Epoxy Resin cures to a high-strength plastic solid at room temperatures, by mixing specific proportions of liquid epoxy resin and hardener. Formulated to work with WEST SYSTEM 205 Fast, 206 Slow, 207 Special, and 209 Tropical Hardeners. You can use this clear, low-viscosity liquid epoxy in a wide temperature range, starting at 40 F. Cure time ranges from 60 minutes to 4 hours based on the hardener used. The curing process forms a high-strength solid bond with excellent moisture resistance. See 'Data Sheets' for more information on usage.
Designed specifically to wet out and bond with wood fiber, composite materials like fiberglass, and reinforcing fabrics, and a variety of metals. Ideal for marine and boat repair applications.
105 is an excellent adhesive that will bridge gaps and fill voids when modified with WEST SYSTEM fillers. When cured, you can sand and shape the resin as needed. In roller applications, it has excellent thin-film characteristics to flow out and self-level without fish-eyeing. 105 resin has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters.
Available for purchase in 1 quart, .98 gallon, and 4.35 gallon sizes.
Tech Specs
| Group Size | Resin Quantity | Hardener Quantity | Mixed Quantity | Saturation Coat - Porous Surfaces | Build-Up Coats Non-porous Surfaces | Tensile Strength (PSI) |
|---|---|---|---|---|---|---|
| A | WSY 105A - 1 Qt. (.94 L) | 205A or 206A - .43 Pt. (.20 L) | 1.2 Qt. (1.15 L) | 90- 105 sq. ft. (8.5-10 sq. m) | 120-135 sq. ft. (11-12.5 sq. m) | 105/205 - 7,846, 105/206 - 7,320 |
| A | WSY 105A - 1 Qt. (.94 L) | 207A or 209A - .66 Pt. (.31 L) | 1.3 Qt. (1.26 L) | 90-105 sq. ft. (9-10 sq. m) | 120-135 sq. ft. (11-13 sq. m) | 105/207 - 7,509, 105/209 - 7,338 |
| B | WSY 105B - .98 Gal. (3.74 L) | 205B or 206B - .86 Qt. (.81 L) | 1.2 Gal. (4.55 L) | 350-405 sq. ft. (32-37 sq. m) | 462-520 sq. ft. (43-48 sq. m) | 105/205 - 7,846, 105/206 - 7,320 |
| B | WSY 105B - .98 Gal. (3.74 L) | 207B or 209B - 1.32 Qt. (1.24 L) | 1.3 Gal. (4.98 L) | 370-430 sq. ft. (35-40 sq. m) | 490-550 sq. ft. (45-50 sq. m) | 105/207 - 7,509, 105/209 - 7,338 |
| C | WSY 105C - 4.35 Gal. (16.47 L) | 205C or 206C - .94 Gal. (3.58 L) | 5.29 Gal. (20 L) | 1530-1785 sq. ft. (142-165 sq. m) | 2040-2300 sq. ft. (190-213 sq. m) | 105/205 - 7,846, 105/206 - 7,320 |
| C | WSY 105C - 4.35 Gal. (16.47 L) | 207C or 209C - 1.45 Gal. (5.49 L) | 5.8 Gal. (21.9 L) | 1675-1955 sq. ft. (155- 180 sq. m) | 2235-2520 sq. ft. (207-233 sq. m) | 105/207 - 7,509, 105/209 - 7,338 |
Info & Guides
By using a simple "cookbook" approach you can tailor the handling characteristics and the physical properties of the cured epoxy to suit your working conditions and specific coating or bonding application.
1. Start with 105 Resin, the basic ingredient of all WEST SYSTEM epoxy compounds.
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 one of six WEST SYSTEM additives to provide specific coating properties.
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Reviews
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11 to 40 of 149 Reviews
11 – 40 of 149 Reviews
Most Recent
Michigan
5 out of 5 stars.
Great product
2 years ago
Tried it years ago. Now keep it on hand for everything from coating to repairs/adhesive.
Helpful?
Wichita, Kansas
5 out of 5 stars.
I would purchase it again.
3 years ago
Have not had the opportunity to use the product in this order it yet.
Helpful?
Lansdale, Pa.
5 out of 5 stars.
West Epoxy system
3 years ago
I've used the 105 epoxy with the clear 205 hardener on a couple of slab wood projects. Their pump system makes mixing a no brainer. Sets up very well and is easy to finish. I really like the crystal clear appearance.
Helpful?
Santa Cruz California
5 out of 5 stars.
I have use this product fo 50+ years and buy it where ever
3 years ago
I have used west epoxy since 1968, and buy it where ever the price is right
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Denver
4 out of 5 stars.
Great product but pricey
3 years ago
Works very well but follow directions and mix for a complete 2 minutes. Doesn't go as far as you think in your project
Helpful?
Lawson, MO
5 out of 5 stars.
West System Epoxy
3 years ago
I use this epoxy to wet out fiberglass. I like the pumps that they have and I have never had this epoxy not cure, ever.
Helpful?
Bend Oregon
1 out of 5 stars.
NO DON'T BUY FROM JD!
3 years ago
West Systems Epoxy is the greatest. Jamestown is not so good. I bought a gallon of Resin and I though I purchased a quart of hardner with it. At least that's what the picture showed. What arrived was a gallon of resin and half a pint of hardner. The math on the mixing ratio doesn't work out. THIS WAS A SCAM!
Helpful?
Oklahoma
3 out of 5 stars.
Product in the container was perfect, pump kit wouldn't fit.
3 years ago
If the pump kit would screw in place on the container it would have been the perfect deal. Pump kit was for a smaller container obviously.
Helpful?
CT
5 out of 5 stars.
Good product, decent price
3 years ago
The product worked as expected and the price seems fair compared to other brands
Helpful?
Exton, pa
5 out of 5 stars.
Hazmat charge ???
4 years ago
Why is it, I can buy this exact same product from Amazon and none of the sellers charge a bullcrap hazmat fee ???
Helpful?
California
5 out of 5 stars.
I will buy this product again
4 years ago
The setting time for this epoxy works well for my woodworking projects. Have tried a couple others with longer set times that result in failures.
Helpful?
Williamsport pa
5 out of 5 stars.
I will buy this product a lot for my business
4 years ago
I Run a furniture repair/refinish shop and have used this epoxy to fix things that no other glue can do. I trust it to do what I need it to do.
Helpful?
michigan
5 out of 5 stars.
Have used multiple times and will buy again
4 years ago
Works great and has many uses. Have used many projects and like to keep on hand
Helpful?
Searcy, AR
5 out of 5 stars.
Very good product and fairly simple to use.
4 years ago
I used this product to apply Kevlar skid plates to 2 Royalex canoes, bow and stern. I just followed the instructions and it was pretty simple to do. It washed off my hands fairly well with Dawn detergent.
Helpful?
Chicago
5 out of 5 stars.
I would buy this product again. Excellent service.
4 years ago
Building a WOOD canoe for the first time. Expoys worked very well. The staff was very helpful.
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Western Maryland
5 out of 5 stars.
Historic House Restoration
4 years ago
I used the product to restore highly weathered wood on a house in a historic district. This product has exceeded expectations. I have rebuilt several window sills using the slow hardener and 403 filler additive to fill in cracks and holes from rotted wood. The 206 slow hardener allows a reasonable working time, and the hardened epoxy sands down nicely to a smooth finish, ready for primer and paint. I would also recommend the pump dispenser set which saves a lot of time measuring out the components.
Helpful?
Lake Champlain, Vt
5 out of 5 stars.
As always , West is the best
4 years ago
Used West 105 to seal the mahogany seats on my 41 yr old Boston Whaler.
Helpful?
NY
5 out of 5 stars.
Just what the doctor ordered.
4 years ago
Have used West System epoxy before & the product works. Had to recore a section of my deck & my deck hatches.
Helpful?
RI
2 out of 5 stars.
High price
4 years ago
Thought JD would be sent out in a few days with all that is going on. But I had to call and push, was told it went out, then found out it had not. Keeps happening, time for Defender Industries.
Helpful?
South Thomaston Me
5 out of 5 stars.
105 best around
5 years ago
I use west system epoxy to seal the seams on the roof of the Vardo's i build
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Mandeville, LA
5 out of 5 stars.
I would buy this product again.
5 years ago
Excellent epoxy and got great price with a free shipping coupon.
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Lawson, MIssouri
5 out of 5 stars.
In my experience, this stuff is the Cadillac of epoxies
5 years ago
I want only the best materials and supplies. I'm building a Haven 12 1/2, See a video episode here: https://www.youtube.com/watch?v=kv6ztylrBdA
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Richmond VA
5 out of 5 stars.
Product as advertised
5 years ago
Works according to West System product information.
Helpful?
Syracuse NY
5 out of 5 stars.
This is the only epoxy I use
5 years ago
Little to no odor, no allergic reaction on my skin and high performance versatile bonding and filling
Helpful?
Albuquerque, New Mexico
5 out of 5 stars.
Just what I needed.
5 years ago
Local hobby shop was out of the item and unknown as to when they would get it in. Needed product to continue building my radio control B-17 bomber. Use it with the 207 hardener to apply thin fiber glass to the balsa covering to seal and strengthen the covering in preparation for painting.
Helpful?
Atlanta
5 out of 5 stars.
I will buy this product again
6 years ago
Have always used this product and don't like to take chances . . . I know how to use it and it always works but must to care re. ambient temps. That said, have had a some Totalboat epoxy and hardeners that will likely try them out on a few smaller projects over in the next few months.
Helpful?
northern michigan
4 out of 5 stars.
Performance deserves 5 stars. Storage can be a problem.
6 years ago
For a occassional user who tries to store resin for say 12 months .. it gets cloudy, makes you wonder.
Helpful?
San Jose, CA
5 out of 5 stars.
This Product Is Exactly What I Wanted
6 years ago
Thank you for the prompt delivery. The product specifications are exactly as mentioned in the description. Thanks!!!
Helpful?
San Jose, CA
5 out of 5 stars.
Great Product - Worth the Money Spent
6 years ago
Really glad to have bought this product. It was what I needed. Thank you for the prompt service and delivery.
Helpful?
Sheboygan wi
5 out of 5 stars.
Would buy this again
6 years ago
Used on a kayak I am building from cedar strips. Coupled with 4oz fiberglass on exterior and 6oz fiberglass on interior provides a very solid hull.
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11 – 40 of 149 Reviews
Questions
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1 - 10 of 158 Questions
Q: I live in Northern Minnesota and it gets pretty cold here. UPS, as usual, just sets packages on our deck. If I order West Systems Epoxy in the winter time and it sits outside for a while and freezes, will it be ruined? Thanks
5 months ago2 Answers
A: Epoxy is not shipped in temperature controlled containers. Short term exposure to cold temperature will not damage it. As long as you bring it up to room temperature before you mix it you should be good to go. For long term storage, you should keep it in moderate temperatures.
5 months agoHelpful?
Q: What is the best epoxy resin for laminating the side wall of an RV? I will be injecting through tubing downward on a vertical wall through a 1/4 inch tube. I have used the Total Boat High Performance Epoxy on boat work but the 105 looks like it could work also and it seem to be less expensive. Which would you recommend? Thanks Jim Lambert Jim@ithelp.tv
9 months ago1 Answer
A: You can use either epoxy. However, the high performance is a bit more flexible, and less likely to overheat when injected.
9 months agoHelpful?
Q: I am putting white oak on a porch. Can i use this epoxy as a weatherproofer and as the final finish?
10 months ago1 Answer
A: You can use it to seal the wood but it will have to be overcoated to protect from UV damage.
10 months agoHelpful?
Q: I have an antique wooden dough bowl that I'm turning into a sink. I need a clear coat finish that will make it waterproof. What would you recommend?
10 months ago1 Answer
A: You can use the West 105 Resin with 207 hardener for a clear finish. Even though it's a 5:1 resin, it is mixed with 207 hardener at a 3:1 ratio.
10 months agoHelpful?
Q: What is the cure time I'm wanting to use it to fix some Delamination on my RV
a year ago1 Answer
A: There are a lot of variables that affect cure time. Please refer to the info provided under the tab labeled ""Data Sheets"".
a year agoHelpful?
Q: Making a wooden boat and need fiber
a year ago1 Answer
A: Hey there. Thanks for reaching out. You can view our fiberglass cloth selection here: https://www.jamestowndistributors.com/product/fiberglass-and-building-materials/fiberglass-cloth or give us a call at 800-497-0010 and we can help you select the right glass for your project.
a year agoHelpful?
Q: Given a wood substrate with a base coat of oil base polyurethane coating, I'd like to apply an epoxy top coat to this surface. Have you heard of any problems due to the oil base coating. For instance, problems such as extreme beading of the epoxy or the epoxy surface ""breaking up "" into isolated puddles. How do you advise? Kent Moon
a year ago1 Answer
A: I'm not sure why you used an oil-based paint. I see a picture of West System epoxy. Wear epoxy is excellent but, I'm not sure what the effect will be using it over the oil base paint.
a year agoHelpful?
Q: how much hardener 205 hardener to a gallon of to 105 slow hardener
2 years ago2 Answers
A: The ratio is 5 to 1, 5 parts resin and 1 part hardener. Purchase the West System 300 mini pump system. When installed properly the pump measure the two parts perfectly.
2 years agoHelpful?
Q: Will this bond to paint or take paint? I was thinking about painting a board I am making and then putting the gloss coat over the top of the paint. If so is there a type of paint I should use?
2 years ago2 Answers
A: Here's the painting guidance from West System: https://www.westsystem.com/instruction-2/epoxy-basics/finish-coatings/ I hope that this helps! - Eric
2 years agoHelpful?
Q: I've seen videos of using this to repair RV sandwich flooring. How much would be required to inject approx 60 sq. Ft in a 6""grid pattern?
2 years ago1 Answer
A: That will depend on how deep the fill will be. If you are drilling a 1/4"" diameter hole 1"" deep and that uses 1/10th of an ounce a gallon of resin would fill about 1280 holes. A quart would fill about 320 holes. A sq ft with holes every 6"" would be 9 holes x 60 = 540 holes you would need 2 quarts of resin. This math may not be correct because after the 1st sq ft of holes you will only be filling 6 holes on the next sq ft so this would me more than enough resin.
2 years agoHelpful?
1 - 10 of 158 Questions