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West System Epoxy Fast (105+205)
At a glance
- Epoxy with fast hardener
- Laminating, coating, bonding
- Working time: 15 minutes
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West System Epoxy Fast is a transparent, low-viscosity epoxy resin that delivers excellent performance for a wide range of applications. When combined with 205 Fast Hardener, it forms a fast-curing epoxy system ideal for work at lower temperatures or projects requiring a short working time.
This epoxy system provides a strong, moisture-resistant, and durable bond, and can be used as an adhesive, filler, or laminating resin in various applications.
Benefits of West System Epoxy Fast
- Short working time and fast curing.
- Excellent adhesion.
- Suitable in a wide range of applications.
Note: this system is not suitable as a clear finish. For that purpose, use RESION UV Epoxy (casting resin) or RESION UV Clear Coat.
Applications
Like other universal epoxy resins, West System Epoxy can be used for bonding and laminating:
- Wood fibres.
- Glass fibres.
- Reinforcing fabrics.
- Composite materials.
- Various metals.
Directions for use
- Ensure the surface is clean, dry, and free from grease.
- Mix 5 parts 105 Epoxy Resin with 1 part 205 Fast Hardener (ratio 5:1).
- Stir the mixture thoroughly for at least 3 minutes, including the sides and the bottom of the container. Only mix an amount that can be applied within the pot life.
- Add fillers if required to modify the resin.
- Apply the epoxy with a brush, roller, or spatula. The working time is approximately 15 minutes at 25 °C.
- For laminating: ensure complete saturation of the fabric.
- For bonding: apply a thin layer of epoxy to both surfaces to be joined.
- Allow the material to cure for approximately 5–7 hours.
- Sand or overcoat only once the epoxy is fully cured.
Tip: use the convenient West System pump sets to easily dispense epoxy and hardener in the correct ratio.
Product specifications
| Packaging | Resin (105 Epoxy Resin) | Hardener (205 Fast Hardener) |
| 0.6 kg (Junior-Pack) | 0.5 kg | 0.1 kg |
| 1.2 kg (A-Pack) | 1 kg | 0.2 kg |
| 6 kg (B-Pack) | 5 kg | 1 kg |
| 30 kg (C-Pack) | 25 kg | 5 kg |
Product properties
The key technical properties clearly listed in one place.
- Article number
- EPO002287
-
The technical product category, such as primer, resin, hardener or cleaner. It explains the product's purpose and helps you find other products with a similar function.
- Epoxy system
-
Working time is the period during which a product remains workable after mixing or activation, usually given in minutes at a specified temperature, often 20 °C. With reactive resins, the chemical reaction also continues in the mixing container, and larger quantities or higher temperatures can shorten this time. Working time is different from gel time and full curing time.
- Approximately 15 minutes (at 25 °C)
- Colour
- Transparant / light yellow
-
UV stabilisation helps a material better withstand the effects of sunlight, including yellowing and deterioration of its properties. It slows ageing but does not make a resin or plastic completely resistant to UV exposure. The degree of protection varies by product.
- No
-
Mixing ratio indicates how much of each component is needed, for example resin (A) and hardener (B). A ratio of 100:50 by weight means 100 grams of A to 50 grams of B; by volume you might use millilitres. Weight and volume ratios are not necessarily the same because the components may have different densities. Accurate measuring is important for proper curing.
- 5:1 (by weight)
-
The tasks a product is intended for, such as laminating, casting, bonding, sealing or protecting. Products intended for the same application can differ considerably in processing, curing time and final properties.
- Glue, Laminate, Putty
-
Minimum application temperature is the lowest temperature at which a product may be used according to the manufacturer. The limit can apply to the air, substrate and product itself.
At lower temperatures, resins and coatings can become thicker and cure more slowly. Moisture can also condense on a cold substrate and reduce adhesion. Check the dew point and measure the surface temperature before starting. A longer drying time does not automatically make application below the specified minimum acceptable.
- 5 °C
-
Curing time is the period a product needs to reach a specified stage of cure. It is usually given in hours or days, often at a reference temperature such as 20 °C. A product may be tack-free or safe to handle before reaching its full mechanical and chemical resistance. Film thickness and mixed quantity may also affect the time.
- 5-7 hours (at 25 °C)
- Net contents
- 1.2 kg, 30 kg, 600 g, 6 kg
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