WEST System Epoxy cures to a high-strength plastic solid at room temperatures, by mixing specific proportions of liquid epoxy resin and hardener.
This clear, pale yellow, low-viscosity liquid epoxy resin is formulated for use with WEST SYSTEM hardeners. It can be cured in a wide temperature range to form a high-strength solid with excellent moisture resistance.
Designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals, 105 is an excellent adhesive that will bridge gaps and fill voids when modified with WEST SYSTEM fillers. It can be sanded and shaped when cured. In roller applications, it has excellent thin-film characteristics to flow out and self-level without fisheyeing. 105 resin has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters.
$36.49
$86.70
$338.69
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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.
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
BRAND:
WEST System
Material:
Epoxy
Type:
Resin
Usage:
Laminating
I've worked with West many times and have often had it exotherm on me with only two pumps of material in a cup. How can on possibly mix up enough to put a barrier coat on a boat in warm weather?
Dave
Use the slow hardener and mix a small quantity in a large container like 10 oz in a 2 gallon container and pour it out to a full size roller tray. You can also cool down the resin and hardener in a refrigerator before mixing.
JD Tech Team
what is the best epoxy resin and hardener to soak a fabric (lace) and what is the right measurement, thank youMr Dela Cruz
Silverio
Please call one of our tech associates at (800) 497-0010. Each epoxy will have different working and cured properties, and we would like to help you select the best one for your application.
JD Tech Associate
does hardener come with the resin
Dan
yes
scottt505
No, hardner must be ordered separatly.###- Please type your reply abovethis line -###Can you answer Dan's question about thisproduct?WEST System 105 Epoxy Resin"doeshardener come with the resin"SimplyReply to this emailThank you in advance if you are able to answerthe question. Your email address will not be shared withthis customer or other shoppers. We may post your answer toour site to benefit other shoppers. By replying to thisemail you agree to the privacyUpdateyour preferencesUnsubscribefrom answering questions about all products
bobfolks
The hardener is sold separately. There are different hardeners fordifferent purposes.
susikkema
No. You must purchase the hardener separately. There are three to choosetemperature.
okaucheecedar
Resin sold separate. There is fast and slow set. Get the slow till you get used to it
tsteele_71
No it does not, you have to buy both hardener and resin.Sent via the Samsung Galaxy S8, an AT&T 4G LTE smartphone
ryan.mussell
Hi Dan, you need to purchase the hardener and the resin, we do sell kits that include both components as well.
JD Tech Associate
I have a 3 by 3 inch section of cored side deck that has moisture. the gel coat has cracked and the core expanded during a freeze. surveyor recommended cutting out cracked top, cleaning out bad core. Then fill hole to surface with epoxy. I asked about replacing the core material with marine plywood or G10. he said it would not be necessary, that the epoxy alone would be ok. it is a 30 yo cruiser. does this sound right ? thank you in advance
mark
Sorry this is beyond my area of expertise. I only work on furniture.
woodsmanms
I did something similar on my dingy, but I actually replaced the foam in between fiberglass with a plywood. I don't see why it would hurt you, if you put a plywood patch in place. Besides that, you may find that the size of the patch can be bigger than you think it is, when you open the top glass layer.
familia.grigoryevy
I can't understand why you would not replace the core plywood would do nicely don't try to make it fit to perfectly you want the epoxy to squeeze up around the sides when you press the block in place a few holes in plywood drilled to let air out can't hurt etherJust press wood down hard enough to know that you don't have voids under it maybe set just a little weight on it to make sure it stays down put some wax paper between the weight and the woodDon't worry about glue on your surface at the glue up stage because you are going to grind the plywood down to deck height as well as tapper the glass deck in the area for glassing the new outer skins you are better off a little low you can always fill with putty for the cosmetic finish you don't want to grind into your patch except around the edge where you tapered your bonds to old deckWhen you cut your old core and outer skin away use a hole saw in the four corners then connect the dots to have round corners 90s can become stress risers Just remove the pilot drill from hole saw after you just cut outer skinOne last note if you can use the same core as what was originally used that's best or something close The problem with sold epoxy is with any thickness a large mass can exotherm get very hot shrink crack and just be a miss plus plywood or core foam is way cheaper than epoxyLast I hope you have found what caused the moisture to get in in the first place that can sometimes be the hardest partTo much information oopsHappy repairs
hbul4
It's right of you to question your surveyor. Epoxy its self is really not designed for filling gaps to this degree for a number of reasons. When you remove the old core, it will be saturated or completely rotten. in that area. Scoop out any core material that you can from your hole that you opened up. Marine ply or one of the commonly used foam core materials, even G10 is unnecessarily strong but fits the application. Thicken the epoxy with silica and fill the carved out area with the new core material, and then you can re-glass the hole and fix it cosmetically. Epoxy is very hard and brittle on its own, as well as heavy (if that's a factor for your application) and an expensive way to fill an area. Though your boat is 30 years old, it was also engineered around having a core material to support the internal compressive strength and enough sheer strength, at the same time as some flexibility.
JD Tech Associate
What is the lowest temperature to apply and clean up tools with what
Steven w
I routinely use West System Epoxy down to 45F in my shop. Cure times are longer at low temperatures. Clean-up of uncured epoxy on workpieces and tools is easily accomplished with denatured alcohol on a rag.PeterSent from my iPhone
phrabchak
Hi Steven, you can clean tools up with white vinegar or acetone. When used with the 205 Fast Hardener, the lowest temperature that they recommend is 40 deg F.
JD Tech Associate
West Systems 105 what does it come with when I order i.e. does it come with the epoxy , hardener and pump set.
Max
When you buy West 105 it only comes with West 105. No pumps or hardener. We do sell West System Epoxy Kits as well that do include the hardener and pumps.
JD Tech Associate
My project is to coat the iron keel on an '86 boat. POR15 seems to get good ratings online for stopping rust. My thought is to overcoat the POR15 with West System, but will it stick to POR15 ? PS I barrier coated a badly blistered bottom with lead keel using West back in the 80's. It still looks great today!
Gil
I'm not familiar with POR15. I would recommend testing a small area with that and West System to see if there are any problems.
JD Tech Team
will using 105 epoxy and 206 hardener create a clear or amber fiberglass lamination for bow limbs?
none
The 206 hardener is a little amber, if you want it to be clear use the 207 Clear Hardener.
JD Tech Team
I would like to build a bow for my grandson, and making my own fiberglass laminations. Would your 105 epoxy resin be a good choice. Will be building a bow oven so heat curing will not be a problem should that be necessary.
bender
Since a bow needs to flex, a better choice would be West System GFlex or Totalboat FlexEpox.
JD Tech Team
Dog has chewed on wooden table claw feet postal legs. Will this product work ?
Slag
It will work to glue it together.
JD Tech Team
4.897
Just what I needed.
5
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.
Keith
Albuquerque, New Mexico
I will buy this product again
5
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.
Boatbuilder2020
Atlanta
Performance deserves 5 stars. Storage can be a problem.
4
For a occassional user who tries to store resin for say 12 months .. it gets cloudy, makes you wonder.
sawdust
northern michigan
This Product Is Exactly What I Wanted
5
Thank you for the prompt delivery. The product specifications are exactly as mentioned in the description. Thanks!!!
Dee1023
San Jose, CA
Great Product - Worth the Money Spent
5
Really glad to have bought this product. It was what I needed. Thank you for the prompt service and delivery.
Dee2310
San Jose, CA
Would buy this again
5
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.
Dave
Sheboygan wi
Happy to Use This Product
5
I am completely satisfied using this product. Thank you for the timely delivery.
Dee23
India
Whats to say... AS EXPECTED
5
Whats to say... AS EXPECTED
SideShow
Staunton VA
Great Value For Money
5
I am satisfied and happy to have bought this product.
Deepali N.
Indore
Very difficult to use
1
I've used several different manufactures of epoxies. West System has always been the most difficult to handle and to achieve the results I'm looking for. Always bubbles, leaves to much blush, and never seems to cure correctly. Best I've found and with best results was ProBuild by Adtech. Always comes out right and is never frustrating to use.
Special order items are not stocked and are ordered direct from the manufacturer. They are non-returnable, may take 2-4 weeks, price and shipping charges subject to change.
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