105 Epoxy Resin® is the base material on which all West System 105 System epoxy compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin. 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.
105 Resin is formulated without volatile solvents and does not shrink after curing. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyester or vinylester resins. Resin viscosity is approximately 1000 centipoise (cp) at 72 F (22C).
105 Resin is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals when mixed at the proper ratio with a West System hardener. An excellent adhesive, 105 mixtures will bridge gaps and fill voids when modified with West System fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without “fisheyeing.” 105 Resin/207 Hardener mixtures cure clear so you can achieve a natural finish when coating with varnish.
- HARDENER MUST BE ORDERED SEPARATELY.
- USE WITH A DISPENSING PUMP
Coating Quantity
| PACKAGE SIZE / QUANTITY |
Coating Coverage |
| Resin Quantity |
Hardener quantity |
Mixed Quantity |
Saturation coat porous surfaces |
Buildup coats non-porous surfaces |
105-A
1 qt (.94L)
2.40 lb |
205-A or 206-A
.43 pt (.20 L)
.47 lb |
1.2 qt (1.15 L)
2.87 lb |
90-105 ft²
(8.5-10m²) |
120 - 135 ft²
(11-12.5m²) |
207-A or 209-A
.66 pt (.31 L)
.70lb |
1.3 qt (1.26 L)
3.1 lb |
90-105 ft²
(9-10 m²) |
120-135 ft²
(11-13 m²) |
105-B
.98 gal (3.74 L)
9.50 lb |
205-B or 206-B
.86 qt (.81 L)
1.86 lb
|
1.2 gal (4.55 L)
11.36 lb |
350-405 ft²
(32-37 m²) |
462 - 520 ft²
(43-48 m²) |
207-B or 209-B
1.32 qt (1.24 L)
2.75 lb |
1.3 gal (4.98 L)
12.25 lb |
370-430 ft²
(35-40 m²) |
490-550 ft²
(45-50 m²) |
105-C
4.35 gal (16.46 L)
41.82 lb |
205-C or 206-C
.94 gal (3.58 L)
8.20 lb |
5.29 gal (20 L)
50.02 lb |
1530-1785 ft²
(142-165 m²) |
2040-2300 ft²
(190-213 m²) |
207-C or 209-C
1.45 gal (5.49 L)
12.0 lb |
5.8 gal (21.9 L)
53.82 lb |
1675-1955 ft²
(155-180 m²) |
2235-2520 ft²
(207-233 m²) |
Fabric Coverage
| Fabric Product Number |
Fabric weight per yd² |
Saturation coat single fabric layer |
Fill coats
2 - 3 coats required |
| 740 |
4 oz |
29 ft²/lb |
35 ft²/lb |
| 742 |
6 oz |
20 ft²/lb |
33 ft²/lb |
| 729, 731, 732, 733 |
9 oz |
13 ft²/lb |
31 ft²/lb |
| 745 |
12 oz |
10 ft²/lb |
28 ft²/lb |
| 727, 737 |
15 oz |
8 ft²/lb |
26 ft²/lb |
| 738 |
22 oz |
5 ft²/lb |
20 ft²/lb |
 |
1 Quart - West System
Part # 105A
105 Resin is the base material of the WEST SYSTEM family of products, on which all of the WEST SYSTEM compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin. 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. It is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. An excellent adhesive, 105 will bridge gaps and fill voids when modified with WEST SYSTEM fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without "fisheyeing." The resin cures clear so that you can achieve a natural finish when coating with varnish. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters. Resin viscosity is approximately 1000 cps at 72°F (22°C).
HARDENER MUST BE ORDERED SEPARATELY.
USE WITH A DISPENSING PUMP
|
 |
West System 105 Resin, .98 Gallons
Part # 105B
105 Resin is the base material of the WEST SYSTEM family of products, on which all of the WEST SYSTEM compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin. 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. It is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. An excellent adhesive, 105 will bridge gaps and fill voids when modified with WEST SYSTEM fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without "fisheyeing." The resin cures clear so that you can achieve a natural finish when coating with varnish. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters. Resin viscosity is approximately 1000 cps at 72°F (22°C).
HARDENER MUST BE ORDERED SEPARATELY.
USE WITH A DISPENSING PUMP
|
 |
4.35 Gallons - West System
Part # 105C
105 Resin is the base material of the WEST SYSTEM family of products, on which all of the WEST SYSTEM compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin. 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. It is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. An excellent adhesive, 105 will bridge gaps and fill voids when modified with WEST SYSTEM fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without "fisheyeing." The resin cures clear so that you can achieve a natural finish when coating with varnish. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters. Resin viscosity is approximately 1000 cps at 72°F (22°C).
HARDENER MUST BE ORDERED SEPARATELY.
USE WITH A DISPENSING PUMP
|
 |
52.03 Gallons - West System
Part # 105E
105 Resin is the base material of the WEST SYSTEM family of products, on which all of the WEST SYSTEM compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin. 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. It is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. An excellent adhesive, 105 will bridge gaps and fill voids when modified with WEST SYSTEM fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without "fisheyeing." The resin cures clear so that you can achieve a natural finish when coating with varnish. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters. Resin viscosity is approximately 1000 cps at 72°F (22°C).
HARDENER MUST BE ORDERED SEPARATELY.
USE WITH A DISPENSING PUMP
|
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