West System 205 Fast Hardener - 7 Ounces
Item #:
750363
Brand:
West System
Model #:
205-A
Packaged Weight:
0.60
Lbs.
Our Price:
$28.31
Status: 
In Stock
In Stock
This product ships ground
only
West System 205 Fast Hardener is a medium-viscosity epoxy curing agent suitable for use at lower temperatures and to produce a rapid cure that develops its physical properties quickly at room temperature.
Features:
- 105 / 206 mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties
- Wets out and bonds to wood fiber, fiberglass, reinforcing fabrics, foam and other composite materials, as well as a variety of metals
- 105 / 205 Epoxy can be thickened with West System fillers to bridge gaps and fill voids and can be sanded and shaped when cured
- With roller applications, has excellent thin-film characteristics, allowing it to flow out and self-level without "fish-eyeing"
- Multiple coats of 105 / 205 Epoxy create a superior moisture barrier and a tough, stable base for paints and varnishes
- Formulated without volatile solvents
- Has a relatively high flash point, no strong solvent odor and does not shrink after curing
- It is not intended for clear coating natural finished wood
Handling characteristics:
- Mix ratio: (5) parts resin : (1) part hardener
- Pot life at 72°F (22°C): 9 to 12 minutes
- Cure to solid state: 6 to 8 hours
- Cure to maximum strength: 1 to 4 days
- Minimum recommended temperature for curing: 40°F (4°C)
For further details See Data Sheet for This Product
* Dispensing and Mixing
- Dispense the proper proportions of resin and hardener into a clean plastic, metal or wax-free paper container
- Don't use glass or foam containers because of the potential danger from exothermic heat buildup
- DO NOT attempt to adjust the epoxy cure time by altering the mix ratio
- An accurate ratio is essential for a proper cure and full development of physical properties
- Dispensing with Mini pumps
- Most problems related to curing of the epoxy can be traced to the wrong ratio of resin and hardener
- To simplify metering, we recommend using calibrated WEST SYSTEM Mini Pumps to dispense the resin and hardener
- Mini Pumps are calibrated to deliver the proper working ratio of resin to hardener
- Pump one full pump stroke of resin for each one full pump stroke of hardener
- Depress each pump head fully and allow the head to come completely back to the top before beginning the next stroke
- Partial strokes will give the wrong ratio
- Read the pump instructions before using pumps
- Before you use the first mixture on a project, verify the proper ratio according to the instructions that come with the pumps
- Re-check the ratio anytime you experience problems with curing
- Dispensing without Mini Pumps (Weight/volume measure):
- To measure 105 Resin and 205 or 206 Hardener by weight or volume, combine five parts resin with one part hardener
- To measure 105 Resin and 207 or 209 Hardener by volume, combine three parts resin with one part hardener (by weight, 3.5 parts resin-1 part hardener)
West System Resin Mini Pumps Set
Item #: 754429One Set For Groups A, B, C, Mix Ratio*
One resin pump and two hardener pumps
Sold as a Set of (3) Pumps
Item #: 754429
Our Price: $24.11
Model #: 300
