WEST SYSTEM 206 Slow Hardener
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WEST SYSTEM 206 Slow Hardener
Description
Description
Hardener for WEST SYSTEM 105 Resin when a longer working period is needed. Suitable for bonding and barrier-coating work; this hardener is not intended for clear coating. Hardener only; resin and pumps are sold separately.
Select one size or package from the options. Sizes shown together in a family photo are alternatives, not a combined order.
Choose your size or package
| Specification | 0.44 Pint (206-A) | 0.86 Quart (206-B) | 0.94 Gallon (206-C) |
|---|---|---|---|
| Manufacturer part number | 206-A | 206-B | 206-C |
| Package | 0.44 Pint | 0.86 Quart | 0.94 gal |
| Group size | A | B | C |
| Contents | Hardener only | Hardener only | Hardener only; resin sold separately |
Matching resin
Match resin and hardener container-group letters. Choose 105-A quart resin, 105-B 0.98-gallon resin, or 105-C 4.35-gallon resin for group A, B or C respectively. Resin is sold separately. Use dispensing equipment calibrated for the selected hardener and container group.
Manufacturer product information. Follow the product label and current manufacturer instructions for preparation and application.
Technical data with 105 Resin
| Resin-to-hardener ratio by volume | 5:1 |
|---|---|
| Pot life: 100 g in a cup at 72 F (22 C) | 20-25 minutes |
| Working time: thin film at 72 F (22 C) | 90-110 minutes |
| Cure to solid at 72 F (22 C) | 10-15 hours |
| Minimum recommended temperature | 60 F (16 C) |
Pot life describes mixed epoxy held in a cup; thin-film working time describes epoxy spread over a surface. Cure-to-solid time is not a full-strength or return-to-service specification. Temperature and batch size affect the reaction.
Dispensing and preparation
Measure the resin and hardener at the specified ratio. With the correct calibrated 300 pumps, use equal full strokes of each pump; this does not mean equal liquid volumes. Do not add extra hardener to speed curing. Prepare a sound, clean, dry and properly abraded surface for the substrate.
For recoating cured epoxy, follow the manufacturer's surface-preparation guidance, including removal of amine blush where applicable. Do not treat an epoxy coating as a substitute for the required exterior protective finish.
Manufacturer instructions and safety
- User manual and product guide
- Surface preparation by material
- 105 system dispensing and mixing
- Epoxy safety guidance
- Safety Data Sheets (SDS): choose the product and region
Manufacturer video
Watch WEST SYSTEM’s dispensing and mixing demonstration. Follow the instructions for your selected resin and hardener.
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