

🛠️ Fix it fast, fix it right — the pro’s epoxy essential!
The WEST SYSTEM 105A Epoxy Resin Bundle combines a clear, low-viscosity resin with a fast-curing hardener and precision pumps, delivering a rapid, strong, and versatile epoxy system. Ideal for professional-grade repairs and construction on wood, fiberglass, and metals, it cures quickly at room temperature with a robust tensile strength of 7845 PSI. Its eco-friendly, low-odor formula and calibrated dispensing pumps make it the go-to choice for millennial managers who demand efficiency, quality, and sustainability in their projects.















| ASIN | B07JHC28CV |
| Best Sellers Rank | #46,847 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #69 in Metal Filled Epoxies |
| Brand | West System |
| Color | Pale Yellow |
| Date First Available | October 17, 2018 |
| Full Cure Time | 3 Days |
| Global Trade Identification Number | 00850017278172 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 950 Milliliters |
| Item Weight | 4.3 pounds |
| Item model number | 205A-BUNDLE |
| Manufacturer | Gougeon Brothers, Inc. |
| Material | Epoxy Resin, Slow Hardener |
| Number of Pieces | 3 |
| Package Information | Can |
| Product Dimensions | 18 x 6 x 6 inches |
| Tensile Strength | 7845.09 Pounds Per Square Inch |
| UPC | 657379078781 |
| Unit Count | 39.0 Fluid Ounces |
| Viscosity | 1E+3 Centipoise |
| Viscosity Level | Low |
| Water Resistance Level | Water Resistant |
S**S
So far the product works well and dries firm
I've used the product once so far on recently installed 3/4" oak dark stained flooring which has some poor areas from the factory, other poor areas such as knots, holes, and other imperfections were already factory repaired. I believe the boards I am working on should have been discarded. I first drilled/ground out the bad areas with a Dremel tool creating a sort of pit or valley then mixed up a small quantity of the resin and hardener using a visual calibration of 5 parts resin to 1 part hardener, I added a small amount of TransTint dye to darken the epoxy to match the factory board repairs, the total volume I prepared was around a tablespoon. The mix is quite thin so it will seep deep into cracks which was some of what I wanted but I found once the epoxy begins to setup it can still be easily worked with making it nice to fill other areas requiring careful manipulation of placement such as filling long ground out irregular cracks and chips in the wood. While the epoxy is drying bubbles will come to the surface, a heat gun worked nicely to pop the bubbles. Once dried the epoxy can be sanded or ground down as necessary, then I used a closely matching wood stain and slightly dyed it to match the surrounding area, it looks good and hopefully I can use this to repair other imperfections of the flooring so I won't need to replace any of the boards. The epoxy system includes a set of pumps but instead I planned on using a small kitchen scale to measure the resin and hardener weight/weight into small paper cups but realized the volume I required to measure in grams would be way more than I needed, the epoxy can be measured by pumps, weight, or volume. I found the name of this epoxy system on a youtube video which also shows it being used and tips on its use. I looked locally for these products but not to be found so I was pleased to see Amazon carries both the epoxy and dye. I think without dye the epoxy would harden to be clear.
M**E
Good enough for Gibson Guitars! Good enough for me.
I’ve been using West Systems in high end custom guitar building since the early 90’s. Simply stated the best epoxy glue I have ever use and refer it to many. Good enough to build boats I would say awesome building guitars too. Excellent for headstock break repairs as well as I learned about this glue while employed at The Gibson Custom Shop. Good enough for Gibson good enough for me. Fast hardener for winter, slow for summer.
B**H
Great product, but beware Amazon shipping.
Love West System Products and reccomend them highly. Not so thrilled with Amazon shipping. First box arrived damaged and leaking. Second box wasn't damaged, but the inner box, clearly labled with "this side up arrows" was upside down in the Amazon box 🤦♂️, which had no arrows or markings.on it anyway.
T**U
Fixed my Lotus clamshell great
I've used various Resin + fiberglass setups in the past but was recommended West Systems on LotusTalk. I broke one of the tabs off on the rear clamshell and needed to get it back in shape, so I figured I'd give this a try. I also purchased the 404 filler which turned out to be key as this creates a structural bond in a smaller space, without having to resort to using lots of fiber mat or fiberglass tape. The pumps really helped out the measuring parts that I always had problems with older resin setups. I put enough filler in to make it have the consistency of "cake frosting" (they say peanut butter, but it never got that stiff for me), positioned a bit of the old broken fiberglass tab, and positioned it properly. I ran some 1" tape in there and waited, then reshaped with a dremel, then drilled the hole back out. Stronger than the other side by far now! I've used it for various other front clam fill and it's pretty easy to use, and the drying time at least in the summer is easy. If you have an Elise, this is the stuff to get.
T**N
Great for filling wood voids
Used this for my first work with a walnut slab. Went with this because a lot of folks use it. This package comes with the pumps that measure out the resin and hardener for you. Once they were primed the first time, it was incredibly easy to mix and use. Couldn't be happier with the results using this with a West Systems black pigment and it filled into much smaller cracks and voids that I would have expected. Next time I will apply this before I do too much sanding, it sands about the same as the walnut and looks fantastic.
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